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Homonyms

IRMNG homonym list - species level - Initial letter = "U" (180)

Note, this list includes both homonyms between codes (which may be valid in both cases) and homonyms within codes, of which in normal circumstances only one will potentially be a valid combination, according to the priority of the relevant genera.
Note also, that homonymy between species epithets in zoology originally established in different genera (even if the latter are themselves homonyms) is to be disregarded under the ICZN Code, Article 57.8.1.



Udeopsylla compacta
 Udeopsylla compacta Bruner, 1891 accepted as Udeopsylla robusta (Haldeman, 1850) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Rhaphidophoridae (Family)
 Udeopsylla compacta Kirby, 1906 accepted as Udeopsylla robusta (Haldeman, 1850) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Rhaphidophoridae (Family)

Udeopsylla nigra
 Udeopsylla nigra Kirby, 1906 accepted as Udeopsylla robusta (Haldeman, 1850) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Rhaphidophoridae (Family)
 Udeopsylla nigra Scudder, 1863 accepted as Udeopsylla robusta (Haldeman, 1850) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Rhaphidophoridae (Family)
 Udeopsylla nigra Brunner von Wattenwyl, 1888 accepted as Udeopsylla robusta (Haldeman, 1850) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Rhaphidophoridae (Family)

Udeopsylla vierecki
 Udeopsylla vierecki Kirby, 1906 accepted as Styracosceles neomexicanus (Scudder, 1894) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Rhaphidophoridae (Family)
 Udeopsylla vierecki Rehn, 1902 accepted as Styracosceles neomexicanus (Scudder, 1894) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Rhaphidophoridae (Family)

Udotea luteofusca
     Udotea luteofusca Howe · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Bryopsidales (Order) > Udoteaceae (Family)
 Udotea luteofusca (P.L. Crouan & H.M. Crouan) M.A. Howe, 1907 accepted as Cladocephalus luteofuscus (P.L. Crouan & H.M. Crouan) Børgesen, 1909 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Bryopsidales (Order) > Udoteaceae (Family)

Ufeus plicatus
     Ufeus plicatus Druce · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Ufeus plicatus Grote, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Ulex gallii
     Ulex gallii Planch. · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Ulex gallii sensu Samp. accepted as Ulex parviflorus Pourr. · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Ulex opistholepis
 Ulex opistholepis Webb accepted as Ulex gallii Planch. · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Ulex opistholepis Webb accepted as Ulex europaeus Linnaeus · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Ulolonche disticha
     Ulolonche disticha Grote, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Ulolonche disticha Morrison, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Ulopeza disjunctalis
     Ulopeza disjunctalis Walker, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Crambidae (Family)
     Ulopeza disjunctalis Hampson, 1918 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Crambidae (Family)

Ulopeza trigonalis
     Ulopeza trigonalis Mabille, 1890 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Crambidae (Family)
     Ulopeza trigonalis Walker, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Crambidae (Family)

Ulothrix crassa
     Ulothrix crassa Kützing · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulotrichales (Order) > Ulotrichaceae (Family)
     Ulothrix crassa (Kützing) Kützing · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulotrichales (Order) > Ulotrichaceae (Family)

Ulothrix flexuosa
     Ulothrix flexuosa Kornmann, 1964 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulotrichales (Order) > Ulotrichaceae (Family)
     Ulothrix flexuosa Schussnig, 1915 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulotrichales (Order) > Ulotrichaceae (Family)

Ulothrix fragilis
     Ulothrix fragilis (J.D. Hooker & Harvey) Kützing · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulotrichales (Order) > Ulotrichaceae (Family)
 Ulothrix fragilis Kützing, 1849 accepted as Klebsormidium fragile (Kützing) H.-P. Wagner & J.S. Zaneveld, 1988 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulotrichales (Order) > Ulotrichaceae (Family)

Ulothrix moniliformis
     Ulothrix moniliformis Kützing, 1849 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulotrichales (Order) > Ulotrichaceae (Family)
 Ulothrix moniliformis (Kützing) Kützing, 1849 accepted as Ulothrix albicans Kützing, 1845 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulotrichales (Order) > Ulotrichaceae (Family)

Ulothrix mucosa
     Ulothrix mucosa Oltmanns · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulotrichales (Order) > Ulotrichaceae (Family)
     Ulothrix mucosa Thuret, 1850 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulotrichales (Order) > Ulotrichaceae (Family)

Ulothrix nitens
     Ulothrix nitens Kützing, 1849 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulotrichales (Order) > Ulotrichaceae (Family)
 Ulothrix nitens Meneghini, 1849 accepted as Klebsormidium nitens (Meneghini) Lokhorst, 1996 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulotrichales (Order) > Ulotrichaceae (Family)

Ulothrix vichyensis
     Ulothrix vichyensis Haime & Petit · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulotrichales (Order) > Ulotrichaceae (Family)
     Ulothrix vichyensis Haime & Ch. Petit · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulotrichales (Order) > Ulotrichaceae (Family)

Ulva agarum
     Ulva agarum (Gmelin) Woodward · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
     Ulva agarum (Gmelin) Poiret · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulva bulbosa
     Ulva bulbosa Pasilot de Beauvois, 1805 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
 Ulva bulbosa (Suhr) Hariot, 1889 accepted as Enteromorpha bulbosa (Suhr) Montagne, 1846 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
 Ulva bulbosa A.P. de Candolle, 1805 accepted as Saccorhiza polyschides (Lightfoot) Batters, 1902 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulva clathrus
     Ulva clathrus (Gmelin) Poiret · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
 Ulva clathrus (S.G. Gmelin) Woodward, 1797 accepted as Agarum clathrus (S.G. Gmelin) Greville, 1830 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulva coccinea
     Ulva coccinea Hudson, 1778 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
 Ulva coccinea Poiret, 1808 accepted as Dudresnaya verticillata (Withering) Le Jolis, 1863 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulva compressa
     Ulva compressa Linnaeus, 1753 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
     Ulva compressa Forsskål, 1775 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulva confervoides
 Ulva confervoides Linnaeus, 1753 accepted as Ceramium virgatum Roth, 1797 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
     Ulva confervoides J.L. Thuillier, 1813 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
 Ulva confervoides Forsskål, 1775 accepted as Chaetomorpha melagonium (F. Weber & D. Mohr) Kützing, 1845 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulva cornucopiae
     Ulva cornucopiae (Kützing) J. Agardh · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
     Ulva cornucopiae (Lyngbye) Trevisan · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulva costata
     Ulva costata Wollny, 1881 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
 Ulva costata (M.A. Howe) Hollenberg, 1971 accepted as Ulva nematoidea Bory de Saint-Vincent, 1828 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulva crassa
     Ulva crassa V.J. Chapman, 1956 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
 Ulva crassa Kjellman, 1877 accepted as Ulva lactuca Linnaeus, 1753 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulva fasciata
     Ulva fasciata Delile, 1813 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
 Ulva fasciata S.F. Gray, 1821 accepted as Ulva linza Linnaeus, 1753 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulva flabelliformis
     Ulva flabelliformis Roth · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
     Ulva flabelliformis Wulfen · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulva fusca
 Ulva fusca Postels & Ruprecht, 1840 accepted as · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
 Ulva fusca Hudson, 1778 accepted as Saccharina latissima (Linnaeus) C.E. Lane, C. Mayes, Druehl & G.W. Saunders, 2006 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulva gelatinosa
     Ulva gelatinosa Kützing, 1856 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
 Ulva gelatinosa Vaucher, 1803 accepted as Tetraspora gelatinosa (Vaucher) Desvaux, 1818 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulva incrassata
 Ulva incrassata Hudson, 1778 accepted as Chaetophora incrassata Hazen, 1902 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
 Ulva incrassata O.F. Müller, 1775 accepted as Dumontia contorta (S.G. Gmelin) Ruprecht, 1850 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulva incurvata
     Ulva incurvata Parriaud, 1959 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
 Ulva incurvata Parriaud ex P.J.L. Dangeard, 1959 accepted as Ulva incurvata Parriaud, 1959 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulva indica
     Ulva indica Roth, 1806 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
 Ulva indica P. Anand, 1940 accepted as Ulva anandii Amjad & Shameel, 1993 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulva intricata
     Ulva intricata J.L. Thuillier, 1836 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
 Ulva intricata Clemente, 1807 accepted as Ascothamnion intricatum (Clemente) Kützing, 1849 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulva latissima
 Ulva latissima Gunnerus, 1766 accepted as Laminaria saccharina (Linnaeus) J.V. Lamouroux, 1813 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
 Ulva latissima Linnaeus, 1753 accepted as Laminaria saccharina (Linnaeus) J.V. Lamouroux, 1813 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulva montana
 Ulva montana Swartz, 1788 accepted as Cora glabrata (Spreng.) Fr., 1838 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
 Ulva montana Lightfoot, 1777 accepted as Microcystis sanguinea (C. Agardh) Kützing, 1833 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulva multifida
     Ulva multifida J.E. Smith, 1808 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
 Ulva multifida Turner, 1801 accepted as Cutleria multifida (Turner) Greville, 1830 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulva olivacea
     Ulva olivacea Hornemann · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
 Ulva olivacea P.J.L. Dangeard, 1951 accepted as Umbraulva olivascens (P.J.L. Dangeard) E.H. Bae & I.K. Lee, 2001 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulva papyracea
     Ulva papyracea Balbis · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
     Ulva papyracea Schleicher · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulva petiolata
 Ulva petiolata Turra, 1780 accepted as Flabellia petiolata (Turra) Nizamuddin, 1987 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
 Ulva petiolata (J. Agardh) Womersley, 1956 accepted as Ulva rigida C. Agardh, 1823 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulva radicata
     Ulva radicata A.J. Retzius · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
     Ulva radicata A.P. de Candolle · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulva rivularis
     Ulva rivularis Corda · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
     Ulva rivularis F.X. Wulfen · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulva sobolifera
 Ulva sobolifera Oeder, 1767 accepted as Devaleraea ramentacea (Linnaeus) Guiry, 1982 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
 Ulva sobolifera (M. Vahl) Lyngbye, 1819 accepted as · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulva squamaria
     Ulva squamaria (Gmelin) Roth · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
     Ulva squamaria (Gmelin) Woodward · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulva tenella
     Ulva tenella Kützing · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
     Ulva tenella Lenormand ex Kützing · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulva uncinata
     Ulva uncinata Mohr · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
     Ulva uncinata Mertens · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulva undulata
     Ulva undulata Raddi · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
     Ulva undulata Turra, 1780 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulva vermicularis
     Ulva vermicularis Schrank · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
     Ulva vermicularis Roth · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Ulvaria blyttii
 Ulvaria blyttii (Areschoug) J. Agardh, 1883 accepted as Ulvaria obscura (Kützing) P. Gayral ex C. Bliding, 1969 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
 Ulvaria blyttii (Areschoug) Vinogradova, 1967 accepted as Ulvaria obscura (Kützing) P. Gayral ex C. Bliding, 1969 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Umbraulva olivascens
     Umbraulva olivascens (P.J.L. Dangeard) E.H. Bae & I.K. Lee, 2001 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
     Umbraulva olivascens (P.J.L. Dangeard) G. Furnari, 2006 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)

Uncobasidium calongei
 Uncobasidium calongei (Tellería) Hjortstam & Tellería, 1990 accepted as Cerocorticium calongei Tellería, 1985 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Polyporales (Order) > Meruliaceae (Family)
 Uncobasidium calongei (Tellería) Domanski, 1992 accepted as Cerocorticium calongei Tellería, 1985 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Polyporales (Order) > Meruliaceae (Family)

Unechis boschmai
 Unechis boschmai Cogger, 1983 accepted as Rhinoplocephalus boschmai Brongersma & Knaap Van Meeuven, 1961 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Elapidae (Family)
 Unechis boschmai Mengden, 1983 accepted as Rhinoplocephalus boschmai Brongersma & Knaap Van Meeuven, 1961 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Elapidae (Family)

Unechis nigriceps
 Unechis nigriceps Mengden, 1983 accepted as Suta nigriceps Günther, 1863 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Elapidae (Family)
 Unechis nigriceps Cogger, 1983 accepted as Suta nigriceps Günther, 1863 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Elapidae (Family)

Unechis spectabilis
 Unechis spectabilis Mengden, 1983 accepted as Suta spectabilis Krefft, 1869 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Elapidae (Family)
 Unechis spectabilis Cogger, 1983 accepted as Suta spectabilis Krefft, 1869 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Elapidae (Family)

Ungulina marginata
 Ungulina marginata (Pers.) Bourdot & Galzin, 1928 accepted as Fomitopsis pinicola (Sw.) P. Karst., 1881 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Polyporales (Order) > Polyporaceae (Family)
 Ungulina marginata (Fr.) Pat., 1900 accepted as Fomitopsis pinicola (Sw.) P. Karst., 1881 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Polyporales (Order) > Polyporaceae (Family)

Unio tumidus
     Unio tumidus Philipsson, 1788 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Unionidae (Family)
     Unio tumidus Retzius, 1788 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Unionoida (Order) > Unionidae (Family)

Unionicola bonzi
     Unionicola bonzi (Claparédè, 1868) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Unionicolidae (Family)
 Unionicola bonzi Imamura, 1953 accepted as Unionicola imamurai Hevers, 1978 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Unionicolidae (Family)

Unionicola cooki
     Unionicola cooki Bader, 1981 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Unionicolidae (Family)
 Unionicola cooki Vidrine, 1986 accepted as Unionicola neocooki Vidrine, 1987 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Unionicolidae (Family)

Unionicola diversipes
     Unionicola diversipes Viets, 1926 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Unionicolidae (Family)
     Unionicola diversipes (Viets, 1926) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Unionicolidae (Family)

Unionicola hankoi
     Unionicola hankoi (Szalay, 1927) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Unionicolidae (Family)
     Unionicola hankoi Szalay, 1927 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Unionicolidae (Family)

Unionicola latilaminata
     Unionicola latilaminata Viets, 1911 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Unionicolidae (Family)
     Unionicola latilaminata (Viets, 1911) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Unionicolidae (Family)

Uniophora granifera
     Uniophora granifera (Lamarck, 1816) · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Forcipulatida (Order) > Asteriidae (Family)
 Uniophora granifera Farquhar, 1878 accepted as Stichaster australis (Verrill, 1871) · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Forcipulatida (Order) > Asteriidae (Family)

Uniporata simplex
     Uniporata simplex N. Umnova in N. Umnova & Yakovlev, 1970 † · Protozoa (Kingdom) > Acritarcha (Phylum) > Acritarcha (awaiting allocation) (Class) > Acritarcha (awaiting allocation) (Order) > Acritarcha (awaiting allocation) (Family)
     Uniporata simplex Pykhova, 1969 † · Protozoa (Kingdom) > Acritarcha (Phylum) > Acritarcha (awaiting allocation) (Class) > Acritarcha (awaiting allocation) (Order) > Acritarcha (awaiting allocation) (Family)

Uniporata verrucosa
     Uniporata verrucosa Pykhova in Krassilov, 1966 † · Protozoa (Kingdom) > Acritarcha (Phylum) > Acritarcha (awaiting allocation) (Class) > Acritarcha (awaiting allocation) (Order) > Acritarcha (awaiting allocation) (Family)
     Uniporata verrucosa N. Umnova in N. Umnova & Yakovlev, 1970 † · Protozoa (Kingdom) > Acritarcha (Phylum) > Acritarcha (awaiting allocation) (Class) > Acritarcha (awaiting allocation) (Order) > Acritarcha (awaiting allocation) (Family)

Unxia insignis
     Unxia insignis (Guérin-Méneville, 1844) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Unxia insignis Thomson, 1860 accepted as Unxia laeta (Guérin-Méneville, 1844) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Unxia læta
 Unxia læta Thomson, 1864 accepted as Unxia laeta (Guérin-Méneville, 1844) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Unxia læta Thomson, 1878 accepted as Unxia laeta (Guérin-Méneville, 1844) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Unxia scopifera
     Unxia scopifera Klug, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Unxia scopifera Napp, 1977 accepted as Parunxia scopifera (Klug, 1825) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Unzela japix
     Unzela japix Butler, 1877 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Sphingidae (Family)
     Unzela japix Walker, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Sphingidae (Family)
     Unzela japix Bönninghausen, 1899 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Sphingidae (Family)
     Unzela japix Cramer, 1776 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Sphingidae (Family)

Upeneichthys stotti
     Upeneichthys stotti Platell, Potter & Clarke, 1998 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Mullidae (Family)
     Upeneichthys stotti Hutchins, 1990 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Mullidae (Family)

Upeneus indicus
     Upeneus indicus Uiblein & Heemstra, 2010 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Mullidae (Family)
 Upeneus indicus (Shaw, 1803) accepted as Parupeneus indicus (Shaw, 1803) · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Mullidae (Family)

Upogebia kempi
     Upogebia kempi Sankolli, 1972 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Upogebiidae (Family)
     Upogebia kempi Shenoy, 1967 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Upogebiidae (Family)

Uragus hamaticollis
     Uragus hamaticollis Guérin-Méneville, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Uragus hamaticollis Tippmann, 1953 accepted as Parozodera farinosa (Burmeister, 1865) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Uraniscodon plica
 Uraniscodon plica Boulenger, 1885 accepted as Plica plica Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Tropiduridae (Family)
 Uraniscodon plica Kaup, 1827 accepted as Plica plica Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Tropiduridae (Family)

Uraniscodon umbra
 Uraniscodon umbra Kaup, 1827 accepted as Plica umbra Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Tropiduridae (Family)
 Uraniscodon umbra Gray, 1845 accepted as Plica umbra Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Tropiduridae (Family)

Uranophora chalybea
     Uranophora chalybea Hübner, 1827 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Arctiidae (Family)
     Uranophora chalybea Hübner, 1898 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Arctiidae (Family)

Uranotaenia bicolor
     Uranotaenia bicolor Leicester, 1908 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Culicidae (Family)
 Uranotaenia bicolor Martini, 1935 accepted as Uranotaenia hystera Dyar & Knab, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Culicidae (Family)

Uranotaenia bimaculata
     Uranotaenia bimaculata Leicester, 1908 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Culicidae (Family)
 Uranotaenia bimaculata Theobald, 1909 accepted as Uranotaenia nigromaculata Edwards, 1941 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Culicidae (Family)

Uranotaenia modesta
     Uranotaenia modesta Leicester, 1908 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Culicidae (Family)
 Uranotaenia modesta Martini, 1935 accepted as Uranotaenia pulcherrima Lynch Arribalzaga, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Culicidae (Family)

Uraria alopecuroides
 Uraria alopecuroides (Roxb.) Wight accepted as Uraria lagopus DC. · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Uraria alopecuroides (Roxb.) Sweet accepted as Uraria lagopodioides DC. · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Uraria campanulata
     Uraria campanulata (Benth.) Gagnep. · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Uraria campanulata Wall. accepted as Christia campanulata (Wall.) Thoth. · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Uraria collettii
 Uraria collettii Prain accepted as Uraria cordifolia Wall. · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Uraria collettii sensu auct. accepted as Uraria cochinchinensis Schindl. · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Uraria cordifolia
     Uraria cordifolia Wall. · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Uraria cordifolia Wall., p.p. accepted as Urariopsis cordifolia (Wall.) Schindl. · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Uraria lagopodioides
     Uraria lagopodioides DC. · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Uraria lagopodioides (L.) DC. accepted as Uraria lagopodoides (L.) DC. · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Uraria paniculata
 Uraria paniculata Hassk. accepted as Uraria rufescens (DC.) Schindl. · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Uraria paniculata C.B. Clarke accepted as Uraria lacei Craib · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Uraria paniculata auct. non Hassk. accepted as Uraria clarkei Gagnep. · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Uraria picta
     Uraria picta (Jacq.) DC. · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Uraria picta sensu Wight accepted as Uraria crinita (L.) DC. · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Uraria sinensis
     Uraria sinensis (Hemsl.) Franch. · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Uraria sinensis auct. non Franch. accepted as Uraria rufescens (DC.) Schindl. · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Urariopsis cordifolia
     Urariopsis cordifolia (Wall.) Schindl. · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Urariopsis cordifolia Schindl. accepted as Uraria cordifolia Wall. · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Urceolus ovatus
 Urceolus ovatus Möbius, 1888 accepted as Urceolus sabulosus Stokes, 1886 · Protozoa (Kingdom) > Euglenozoa (Phylum) > Peranemea (Class) > Peranemida (Order) > Peranemidae (Family)
     Urceolus ovatus Raskin, 1931 · Protozoa (Kingdom) > Euglenozoa (Phylum) > Peranemea (Class) > Peranemida (Order) > Peranemidae (Family)

Uredo aegopodii
 Uredo aegopodii Schumach., 1803 accepted as Puccinia aegopodii (Schumach.) Link, 1817 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)
 Uredo aegopodii (Rebent.) G. Winter accepted as Puccinia aegopodii (Schumach.) Link, 1817 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)

Uredo candida
 Uredo candida Rabenh. accepted as Albugo candida (Pers.) Kuntze, 1891 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)
 Uredo candida (Pers.) Fr., 1832 accepted as Albugo candida (Pers.) Kuntze, 1891 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)

Uredo caricis
 Uredo caricis Schumach., 1803 accepted as Puccinia caricina DC., 1815 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)
 Uredo caricis Pers., 1801 accepted as Anthracoidea caricis (Pers.) Bref., 1896 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)

Uredo caryophyllacearum
 Uredo caryophyllacearum sensu auct. accepted as Melampsorella caryophyllacearum (DC.) J. Schröt., 1874 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)
 Uredo caryophyllacearum DC., 1805 accepted as Melampsorella caryophyllacearum (DC.) J. Schröt., 1874 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)

Uredo effusa
 Uredo effusa sensu auct. accepted as Phragmidium mucronatum (Pers.) Schltdl., 1824 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)
 Uredo effusa sensu Berkeley accepted as Triphragmium ulmariae (DC.) Link, 1825 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)

Uredo euonymi
 Uredo euonymi (J.F. Gmel.) J. Schröt. accepted as Melampsora epitea Thüm., 1879 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)
 Uredo euonymi G. Martin, 1812 accepted as Melampsora epitea Thüm., 1879 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)

Uredo filicum
 Uredo filicum sensu auct. accepted as Hyalopsora aspidiotus (Peck) Magnus, 1901 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)
 Uredo filicum sensu auct. accepted as Hyalopsora polypodii (Pers.) Magnus, 1901 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)
 Uredo filicum Desm., 1826 accepted as Hyalopsora polypodii (Pers.) Magnus, 1901 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)

Uredo glumarum
 Uredo glumarum Roberge accepted as Puccinia striiformis Westend., 1854 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)
 Uredo glumarum Schumach. accepted as Puccinia striiformis Westend., 1854 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)

Uredo hydrocotyles
 Uredo hydrocotyles Mont., 1852 accepted as Puccinia hydrocotyles (Mont.) Cooke, 1880 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)
 Uredo hydrocotyles (Link) Buriticá, 1996 accepted as Puccinia hydrocotyles (Mont.) Cooke, 1880 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)

Uredo ipomoeae
 Uredo ipomoeae Yadav, 1963 accepted as Coleosporium ipomoeae (Schwein.) Burrill, 1885 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)
 Uredo ipomoeae Schwein., 1963 accepted as Coleosporium ipomoeae (Schwein.) Burrill, 1885 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)

Uredo potentillarum
 Uredo potentillarum sensu auct.p.p. accepted as Phragmidium potentillae (Pers.) P. Karst., 1879 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)
 Uredo potentillarum sensu auct.p.p. accepted as Phragmidium fragariae G. Winter, 1884 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)

Uredo scillarum
 Uredo scillarum Grev. accepted as Uromyces muscari Lév., 1857 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)
 Uredo scillarum Berk., 1836 accepted as Uromyces muscari Lév., 1857 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)

Uredo scolopendrii
 Uredo scolopendrii (Fuckel) J. Schröt. accepted as Milesina scolopendrii (Faull) D.M. Hend., 1961 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)
 Uredo scolopendrii sensu auct. accepted as Milesina blechni (Syd. & P. Syd.) Arthur ex Faull, 1910 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)
 Uredo scolopendrii sensu auct.p.p. accepted as Milesina scolopendrii (Faull) D.M. Hend., 1961 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)

Uredo seminis-convolvuli
 Uredo seminis-convolvuli Desm., 1827 accepted as Thecaphora seminis-convolvuli (Duby) Liro, 1935 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)
 Uredo seminis-convolvuli Duby, 1830 accepted as Thecaphora seminis-convolvuli (Duby) Liro, 1935 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)

Uredo sonchi-arvensis
 Uredo sonchi-arvensis sensu auct.p.p. accepted as Coleosporium tussilaginis (Pers.) Kleb., 1849 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)
 Uredo sonchi-arvensis sensu auct.p.p. accepted as Miyagia pseudosphaeria (Mont.) Jørst., 1962 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)

Uredo statices
 Uredo statices sensu auct. accepted as Uromyces armeriae (Schltdl.) Lév., 1867 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)
 Uredo statices sensu auct. accepted as Uromyces limonii (DC.) Lév., 1849 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)

Uredo valerianae
 Uredo valerianae Desm. accepted as Uromyces valerianae (Schumach.) Fuckel, 1870 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)
 Uredo valerianae Schumach., 1803 accepted as Uromyces valerianae (Schumach.) Fuckel, 1870 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)

Uredo zeae
 Uredo zeae Schwein., 1822 accepted as Ustilago maydis (DC.) Corda, 1842 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)
 Uredo zeae Desm. accepted as Ustilago maydis (DC.) Corda, 1842 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniales incertae sedis (Family)

Uresiphita gracilis
     Uresiphita gracilis Butler, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Crambidae (Family)
     Uresiphita gracilis Caradja, 1916 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Crambidae (Family)

Uriechis microlepidotus
 Uriechis microlepidotus Günther, 1860 accepted as Macrelaps microlepidotus Günther, 1860 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Atractaspididae (Family)
 Uriechis microlepidotus Gurney, 1860 accepted as Macrelaps microlepidotus Günther, 1860 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Atractaspididae (Family)

Uristes murrayi
     Uristes murrayi (Keable, 1903) · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Uristidae (Family)
     Uristes murrayi Walker, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Uristidae (Family)

Urnisa emarginata
 Urnisa emarginata Sjöstedt, 1921 accepted as Urnisa rugosa Saussure, 1884 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
 Urnisa emarginata Sjostedt, 1921 accepted as Urnisa rugosa Saussure, 1884 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)

Urnisa palliata
 Urnisa palliata Sjöstedt, 1921 accepted as Urnisa erythrocnemis (Stål, 1861) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
 Urnisa palliata Sjostedt, 1921 accepted as Urnisa erythrocnemis (Stål, 1861) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)

Urnisa togata
 Urnisa togata Sjostedt, 1930 accepted as Urnisa erythrocnemis (Stål, 1861) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
 Urnisa togata Sjöstedt, 1930 accepted as Urnisa erythrocnemis (Stål, 1861) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)

Urobacillus pasteurii
 Urobacillus pasteurii Miquel, 1889 accepted as Bacillus pasteurii (Miquel 1889) Chester, 1898 · Bacteria (Kingdom) > Firmicutes (Phylum) > Bacilli (Class) > Bacillales (Order) > Bacillaceae (Family)
 Urobacillus pasteurii Miquel, 1889 accepted as Sporosarcina pasteurii (Miquel, 1889) Yoon et al., 2001 · Bacteria (Kingdom) > Firmicutes (Phylum) > Bacilli (Class) > Bacillales (Order) > Bacillaceae (Family)

Urodacus granifrons
 Urodacus granifrons Kraepelin, 1916 accepted as Urodacus yaschenkoi (Birula, 1903) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Scorpiones (Order) > Urodacidae (Family)
 Urodacus granifrons Pocock, 1898 accepted as Urodacus armatus Pocock, 1888 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Scorpiones (Order) > Urodacidae (Family)

Urodacus kraepelini
 Urodacus kraepelini Takashima, 1945 accepted as Urodacus yaschenkoi (Birula, 1903) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Scorpiones (Order) > Urodacidae (Family)
 Urodacus kraepelini Glauert, 1963 accepted as Urodacus yaschenkoi (Birula, 1903) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Scorpiones (Order) > Urodacidae (Family)

Urodasys acanthostylis
     Urodasys acanthostylis Todaro, Bernhard & Hummon, 2000 · Animalia (Kingdom) > Gastrotricha (Phylum) > (Class) > Macrodasyida (Order) > Macrodasyidae (Family)
     Urodasys acanthostylis Fregni, Tongiorgi & Faienza, 1998 · Animalia (Kingdom) > Gastrotricha (Phylum) > (Class) > Macrodasyida (Order) > Macrodasyidae (Family)

Uroglena conimamma
     Uroglena conimamma G. Nygaard · Chromista (Kingdom) > Ochrophyta (Phylum) > Chrysophyceae (Class) > Chromulinales (Order) > Chromulinaceae (Family)
     Uroglena conimamma Nygaard · Chromista (Kingdom) > Ochrophyta (Phylum) > Chrysophyceae (Class) > Chromulinales (Order) > Chromulinaceae (Family)

Urographis despectus
 Urographis despectus Monné & Giesbert, 1995 accepted as Graphisurus despectus (LeConte, 1850) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Urographis despectus Linsley & Chemsak, 1995 accepted as Graphisurus despectus (LeConte, 1850) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Urographis fasciata
 Urographis fasciata Riley, 1880 accepted as Graphisurus fasciatus (Degeer, 1775) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Urographis fasciata Horn, 1880 accepted as Graphisurus fasciatus (Degeer, 1775) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Urographis triangulifera
 Urographis triangulifera Riley, 1880 accepted as Graphisurus triangulifer (Haldeman, 1847) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Urographis triangulifera Horn, 1880 accepted as Graphisurus triangulifer (Haldeman, 1847) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Urolophus marmoratus
 Urolophus marmoratus Philippi, 1892 accepted as Urobatis marmoratus (Philippi, 1892) · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Myliobatiformes (Order) > Urolophidae (Family)
 Urolophus marmoratus Chu, Hu & Li, 1981 accepted as Plesiobatis daviesi (Wallace, 1967) · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Myliobatiformes (Order) > Urolophidae (Family)

Uromenus praticola
 Uromenus praticola Werner, 1931 accepted as Steropleurus cockerelli (Uvarov, B.P., 1930) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
 Uromenus praticola Werner, 1932 accepted as Steropleurus cockerelli (Uvarov, B.P., 1930) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)

Uromyces digitatus
 Uromyces digitatus Halst., 1887 accepted as Atelocauda digitata (G. Winter) Cummins & Y. Hirats., 1983 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)
 Uromyces digitatus G. Winter, 1886 accepted as Atelocauda digitata (G. Winter) Cummins & Y. Hirats., 1983 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)

Uromyces excavatus
     Uromyces excavatus DC. · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)
 Uromyces excavatus (DC.) Magnus, 1847 accepted as Uromyces tuberculatus Fuckel, 1870 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)

Uromyces geranii
     Uromyces geranii Speg. · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)
 Uromyces geranii (DC.) G.H. Otth & Wartm., 1847 accepted as Puccinia pelargonii-zonalis Doidge, 1926 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)

Uromyces junci
     Uromyces junci (Desm.) Tul., 1854 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)
 Uromyces junci (Schwein.) Tul., 1854 accepted as Stegocintractia junci (Schwein.) M. Piepenbr., 1996 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)

Uromyces laburni
 Uromyces laburni (DC.) G.H. Otth, 1863 accepted as Uromyces pisi-sativi (Pers.) Liro, 1908 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)
 Uromyces laburni Fuckel, 1863 accepted as Uromyces pisi-sativi (Pers.) Liro, 1908 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)

Uromyces lilii
 Uromyces lilii Clinton, 1875 accepted as Uromyces holwayi Lagerh., 1889 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)
 Uromyces lilii (Link) Fuckel, 1875 accepted as Uromyces aecidiiformis (F. Strauss) C.C. Rees, 1917 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)

Uromyces limonii
     Uromyces limonii (DC.) Lév., 1849 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)
 Uromyces limonii sensu Plowright accepted as Uromyces armeriae (Schltdl.) Lév., 1867 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)

Uromyces orobi
 Uromyces orobi Fuckel, 1847 accepted as Uromyces viciae-fabae (Pers.) J. Schröt., 1875 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)
 Uromyces orobi (Schumach.) Lév., 1847 accepted as Uromyces viciae-fabae (Pers.) J. Schröt., 1875 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)

Uromyces pisi
 Uromyces pisi (Pers.) de Bary, 1863 accepted as Uromyces pisi-sativi (Pers.) Liro, 1908 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)
 Uromyces pisi (DC.) G.H. Otth, 1863 accepted as Uromyces pisi-sativi (Pers.) Liro, 1908 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)

Uromyces scillarum
 Uromyces scillarum Juel, 1847 accepted as Uromyces muscari Lév., 1857 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)
 Uromyces scillarum (J.W. Baxter) G. Winter, 1884 accepted as Uromyces muscari Lév., 1857 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)
 Uromyces scillarum (Grev.) G. Winter, 1847 accepted as Uromyces muscari Lév., 1857 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)

Uromyces trifolii
     Uromyces trifolii (R. Hedw.) Lév., 1847 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)
 Uromyces trifolii sensu auct. accepted as Uromyces trifolii-repentis (Castagne) Liro, 1906 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)

Uromyces ulmariae
 Uromyces ulmariae Lév., 1847 accepted as Triphragmium ulmariae (DC.) Link, 1825 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)
 Uromyces ulmariae sensu auct.p.p. accepted as Phragmidium mucronatum (Pers.) Schltdl., 1824 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)

Uronema belkae
     Uronema belkae (Mattox & Bold) O'Kelly & Floyd, 1984 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chaetophorales (Order) > Chaetophoraceae (Family)
 Uronema belkae G.M. Lokhorst, 1985 accepted as Uronema belkae (Mattox & Bold) O'Kelly & Floyd, 1984 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chaetophorales (Order) > Chaetophoraceae (Family)

Uronema marinum
     Uronema marinum Dujardin, 1841 · Chromista (Kingdom) > Ciliophora (Phylum) > Oligohymenophorea (Class) > Scuticociliatida (Order) > Uronematidae (Family)
     Uronema marinum Womersley, 1984 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chaetophorales (Order) > Chaetophoraceae (Family)

Uropeltis grandis
 Uropeltis grandis Smith, 1943 accepted as Uropeltis smithi Beddome, 1867 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Uropeltidae (Family)
 Uropeltis grandis Kelaart, 1853 accepted as Pseudotyphlops philippinus Müller, 1832 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Uropeltidae (Family)

Uropeltis rubrolineatus
     Uropeltis rubrolineatus Günther, 1875 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Uropeltidae (Family)
 Uropeltis rubrolineatus Gans, 1966 accepted as Uropeltis phipsonii Mason, 1888 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Uropeltidae (Family)

Urophora tenuis
     Urophora tenuis Becker, 1908 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tephritidae (Family)
 Urophora tenuis Hendel, 1910 accepted as Urophora tenuior Hendel, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tephritidae (Family)

Uroplatus ebenaui
     Uroplatus ebenaui Boettger, 1879 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Gekkonidae (Family)
 Uroplatus ebenaui Kluge, 1993 accepted as Uroplatus phantasticus Boulenger, 1888 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Gekkonidae (Family)

Uroplatus schneideri
 Uroplatus schneideri Lamberton, 1913 accepted as Uroplatus ebenaui Boettger, 1879 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Gekkonidae (Family)
 Uroplatus schneideri Lamberton, 1913 accepted as Uroplatus phantasticus Boulenger, 1888 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Gekkonidae (Family)

Uroplectes intermedius
 Uroplectes intermedius Caporiacco, 1941 accepted as Uroplectes vittatus (Thorell, 1876) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Scorpiones (Order) > Buthidae (Family)
 Uroplectes intermedius Tullgren, 1910 accepted as Uroplectes vittatus (Thorell, 1876) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Scorpiones (Order) > Buthidae (Family)

Uropoda africana
     Uropoda africana (Vitzthum, 1925) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Uropodidae (Family)
 Uropoda africana Oudemans, 1905 accepted as Uroobovella africana (Oudemans, 1905) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Uropodidae (Family)

Uropoda brasiliensis
     Uropoda brasiliensis (Sellnick, 1962) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Uropodidae (Family)
 Uropoda brasiliensis Berlese, 1903 accepted as Uroactinia brasiliensis (Berlese, 1903) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Uropodidae (Family)

Uropoda cribraria
 Uropoda cribraria Ewing, 1909 accepted as Uroobovella cribraria (Ewing, 1909) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Uropodidae (Family)
 Uropoda cribraria Berlese, 1888 accepted as Castriidinychus cribrarius (Berlese, 1888) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Uropodidae (Family)

Uropoda depilatasimilis
     Uropoda depilatasimilis Wisniewski, 1979 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Uropodidae (Family)
 Uropoda depilatasimilis Wiœniewski, 1979 accepted as Jerzywisniewskia depilatasimilis (Wiœniewski, 1979) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Uropodidae (Family)

Uropoda elegans
     Uropoda elegans (Marais & Theron, 1986) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Uropodidae (Family)
 Uropoda elegans Kramer, 1882 accepted as Trichouropoda elegans (Kramer, 1882) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Uropodidae (Family)

Uropoda fiedleri
     Uropoda fiedleri Wisniewski, 1979 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Uropodidae (Family)
 Uropoda fiedleri Wiœniewski, 1979 accepted as Jerzywisniewskia fiedleri (Wiœniewski, 1979) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Uropodidae (Family)

Uropoda franzi
     Uropoda franzi (Marais & Theron, 1986) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Uropodidae (Family)
 Uropoda franzi Hirschmann & Zirngiebl-Nicol, 1969 accepted as Cilliba franzi (Hirschmann & Zirngiebl-Nicol, 1969) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Uropodidae (Family)

Uropoda pallida
 Uropoda pallida Vitzthum, 1925 accepted as Ruehmnenteria pallida (Vitzthum, 1925) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Uropodidae (Family)
 Uropoda pallida Ewing, 1909 accepted as Trichouropoda pallida (Ewing, 1909) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Uropodidae (Family)

Uropoda philoctena
 Uropoda philoctena Trouessart, 1902 accepted as Oplitis philoctena (Trouessart, 1902) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Uropodidae (Family)
 Uropoda philoctena Janet, 1897 accepted as Oplitis philoctena (Trouessart, 1902) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Uropodidae (Family)

Urospora vancouveriana
     Urospora vancouveriana (Tilden) Setchell & N.L. Gardner, 1919 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulotrichales (Order) > Ulotrichaceae (Family)
     Urospora vancouveriana (Tilden) R.F. Scagel · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulotrichales (Order) > Ulotrichaceae (Family)

Urostrophus vautieri
     Urostrophus vautieri Duméril & Bibron, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Leiosauridae (Family)
 Urostrophus vautieri Boulenger, 1902 accepted as Urostrophus gallardoi Etheridge & Williams, 1991 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Leiosauridae (Family)

Urothoe norvegica
 Urothoe norvegica Boeck, 1861 accepted as Urothoe elegans (Bate, 1857) · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Urothoidae (Family)
 Urothoe norvegica Boeck, 1871 accepted as Urothoe bairdii Bate, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Urothoidae (Family)

Urothoe ruber
     Urothoe ruber Giles, 1888 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Urothoidae (Family)
 Urothoe ruber Rabindranath, 1971 accepted as Urothoe serrulidactylus K. H Barnard, 1955 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Urothoidae (Family)

Urticina coriacea
     Urticina coriacea Avernicev, 1967 · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Actiniaria (Order) > Actiniidae (Family)
 Urticina coriacea (Cuvier, 1798) accepted as Urticina felina (Linnaeus, 1761) · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Actiniaria (Order) > Actiniidae (Family)

Urticina nodosa
 Urticina nodosa Fabr. sp. accepted as Hormathia digitata (O.F. Müller, 1776) · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Actiniaria (Order) > Actiniidae (Family)
 Urticina nodosa Fabr. sp. accepted as Actinauge verrilli McMurrich, 1893 · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Actiniaria (Order) > Actiniidae (Family)

Usia bicolor
     Usia bicolor Macquart, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Bombyliidae (Family)
 Usia bicolor Efflatoun, 1945 accepted as Usia efflatouni Venturi, 1948 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Bombyliidae (Family)

Usnea compacta
 Usnea compacta sensu auct. brit. accepted as Usnea subfloridana Stirt., 1882 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Lecanorales (Order) > Parmeliaceae (Family)
 Usnea compacta (Räsänen) Motyka, 1936 accepted as Usnea glabrescens (Nyl. ex Vain.) Vain., 1925 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Lecanorales (Order) > Parmeliaceae (Family)

Usnea distincta
 Usnea distincta Motyka, 1939 accepted as Usnea glabrescens (Nyl. ex Vain.) Vain., 1925 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Lecanorales (Order) > Parmeliaceae (Family)
 Usnea distincta sensu auct. brit. accepted as Usnea subfloridana Stirt., 1882 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Lecanorales (Order) > Parmeliaceae (Family)

Usnea fulvoreagens
     Usnea fulvoreagens (Räsänen) Räsänen, 1935 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Lecanorales (Order) > Parmeliaceae (Family)
 Usnea fulvoreagens sensu auct. brit.p.p., non (Räsänen) Räsänen accepted as Usnea esperantiana P. Clerc, 1992 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Lecanorales (Order) > Parmeliaceae (Family)

Usnea inflata
 Usnea inflata (Duby) Motyka, 1837 accepted as Usnea cornuta Körb., 1859 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Lecanorales (Order) > Parmeliaceae (Family)
 Usnea inflata Delise, 1830 accepted as Usnea cornuta Körb., 1859 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Lecanorales (Order) > Parmeliaceae (Family)

Usnea laricina
 Usnea laricina Vain. accepted as Usnea glabrescens (Nyl. ex Vain.) Vain., 1925 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Lecanorales (Order) > Parmeliaceae (Family)
 Usnea laricina sensu auct., ? non Vain. ex Räsänen accepted as Usnea glabrescens (Nyl. ex Vain.) Vain., 1925 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Lecanorales (Order) > Parmeliaceae (Family)

Usnea sorediifera
 Usnea sorediifera (Arnold) Lynge accepted as Usnea glabrata (Ach.) Vain., 1915 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Lecanorales (Order) > Parmeliaceae (Family)
 Usnea sorediifera sensu Motyka, non (Arnold) Lynge accepted as Usnea fulvoreagens (Räsänen) Räsänen, 1935 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Lecanorales (Order) > Parmeliaceae (Family)

Ustilago abstrusa
 Ustilago abstrusa Malençon, 1929 accepted as Bauerago abstrusa (Malençon) Vánky, 1999 · Fungi (Kingdom) > Basidiomycota (Phylum) > Ustilaginomycetes (Class) > Ustilaginales (Order) > Ustilaginaceae (Family)
 Ustilago abstrusa G. Winter accepted as Bauerago abstrusa (Malençon) Vánky, 1999 · Fungi (Kingdom) > Basidiomycota (Phylum) > Ustilaginomycetes (Class) > Ustilaginales (Order) > Ustilaginaceae (Family)

Ustilago candollei
 Ustilago candollei sensu auct. accepted as Sphacelotheca hydropiperis (Schumach.) de Bary, 1884 · Fungi (Kingdom) > Basidiomycota (Phylum) > Ustilaginomycetes (Class) > Ustilaginales (Order) > Ustilaginaceae (Family)
 Ustilago candollei Tul. & C. Tul., 1847 accepted as Ustilago bistortarum (DC.) Körn., 1877 · Fungi (Kingdom) > Basidiomycota (Phylum) > Ustilaginomycetes (Class) > Ustilaginales (Order) > Ustilaginaceae (Family)

Ustilago caricis
 Ustilago caricis (Pers.) Fuckel, 1836 accepted as Anthracoidea caricis (Pers.) Bref., 1896 · Fungi (Kingdom) > Basidiomycota (Phylum) > Ustilaginomycetes (Class) > Ustilaginales (Order) > Ustilaginaceae (Family)
 Ustilago caricis sensu auct.p.p. accepted as Anthracoidea arenariae (Syd.) Nannf., 1977 · Fungi (Kingdom) > Basidiomycota (Phylum) > Ustilaginomycetes (Class) > Ustilaginales (Order) > Ustilaginaceae (Family)

Ustilago salveii
 Ustilago salveii sensu auct. accepted as Ustilago striiformis (Westend.) Niessl, 1876 · Fungi (Kingdom) > Basidiomycota (Phylum) > Ustilaginomycetes (Class) > Ustilaginales (Order) > Ustilaginaceae (Family)
 Ustilago salveii Berk. & Broome, 1850 accepted as Ustilago striiformis (Westend.) Niessl, 1876 · Fungi (Kingdom) > Basidiomycota (Phylum) > Ustilaginomycetes (Class) > Ustilaginales (Order) > Ustilaginaceae (Family)

Ustilago tragopogi
 Ustilago tragopogi Röhl. accepted as Ustilago tragopogonis-pratensis (Pers.) Roussel, 1806 · Fungi (Kingdom) > Basidiomycota (Phylum) > Ustilaginomycetes (Class) > Ustilaginales (Order) > Ustilaginaceae (Family)
 Ustilago tragopogi (Pers.) J. Schröt. accepted as Ustilago tragopogonis-pratensis (Pers.) Roussel, 1806 · Fungi (Kingdom) > Basidiomycota (Phylum) > Ustilaginomycetes (Class) > Ustilaginales (Order) > Ustilaginaceae (Family)

Ustilago tritici
     Ustilago tritici (Pers.) C.N. Jensen · Fungi (Kingdom) > Basidiomycota (Phylum) > Ustilaginomycetes (Class) > Ustilaginales (Order) > Ustilaginaceae (Family)
 Ustilago tritici C. Bauhin accepted as Ustilago nuda (C.N. Jensen) Rostr., 1889 · Fungi (Kingdom) > Basidiomycota (Phylum) > Ustilaginomycetes (Class) > Ustilaginales (Order) > Ustilaginaceae (Family)

Ustilago utriculosa
     Ustilago utriculosa (Nees) Tul. & C. Tul., 1847 · Fungi (Kingdom) > Basidiomycota (Phylum) > Ustilaginomycetes (Class) > Ustilaginales (Order) > Ustilaginaceae (Family)
 Ustilago utriculosa sensu Tulasne & Tulasne accepted as Microbotryum reticulatum (Liro) R. Bauer & Oberw., 1997 · Fungi (Kingdom) > Basidiomycota (Phylum) > Ustilaginomycetes (Class) > Ustilaginales (Order) > Ustilaginaceae (Family)

Uta lateralis
 Uta lateralis Boulenger, 1885 accepted as Urosaurus ornatus Baird & Girard, 1852 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Phrynosomatidae (Family)
 Uta lateralis Boulenger, 1883 accepted as Urosaurus ornatus Baird & Girard, 1852 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Phrynosomatidae (Family)

Utelga heinckei
     Utelga heinckei (v. Attems, 1897) Karling, 1954 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Rhabdocoela (Order) > Koinocystididae (Family)
 Utelga heinckei (Attems, 1897) accepted as Utelga pseudoheinckei Karling, 1980 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Rhabdocoela (Order) > Koinocystididae (Family)

Utelga spinosa
     Utelga spinosa (Beklemischev, 1927) · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Rhabdocoela (Order) > Koinocystididae (Family)
     Utelga spinosa Karling, 1954 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Rhabdocoela (Order) > Koinocystididae (Family)

Uteroflexus ornatus
     Uteroflexus ornatus T. Hortobágyi, 1964 · Chromista (Kingdom) > Ochrophyta (Phylum) > Xanthophyceae (Class) > Mischococcales (Order) > Ophiocytiaceae (Family)
     Uteroflexus ornatus Hortobágyi ex Loeblich III · Chromista (Kingdom) > Ochrophyta (Phylum) > Xanthophyceae (Class) > Mischococcales (Order) > Ophiocytiaceae (Family)

Uteroflexus verrucosus
     Uteroflexus verrucosus Hortobágyi · Chromista (Kingdom) > Ochrophyta (Phylum) > Xanthophyceae (Class) > Mischococcales (Order) > Ophiocytiaceae (Family)
     Uteroflexus verrucosus Hortobágyi ex Loeblich III · Chromista (Kingdom) > Ochrophyta (Phylum) > Xanthophyceae (Class) > Mischococcales (Order) > Ophiocytiaceae (Family)

Utetheisa venusta
     Utetheisa venusta Dalman, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Arctiidae (Family)
     Utetheisa venusta Hübner, 1827 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Arctiidae (Family)

Utricularia fibrosa
 Utricularia fibrosa Britt. accepted as Utricularia striata Le Conte ex Torrey · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lentibulariaceae (Family)
 Utricularia fibrosa Walt. accepted as Utricularia gibba Linnaeus · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lentibulariaceae (Family)

Uva korshikovii
     Uva korshikovii (Schkorbatow) Fott · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Spondylomoraceae (Family)
     Uva korshikovii (Schkorbatow) Balakrishnan · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Spondylomoraceae (Family)

Uvarovitettix nobrei
 Uvarovitettix nobrei Devriese, 1993 accepted as Uvarovitettix nodulosus (Fieber, 1853) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tetrigidae (Family)
 Uvarovitettix nobrei (Bolivar, I., 1887) accepted as Uvarovitettix nodulosus (Fieber, 1853) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tetrigidae (Family)