IRMNG Taxon list
Polysiphonia Finks, 1995 † (uncertain ) [Family: Maeandrostiidae]
Polysiphonia Greville, 1823 [Family: Rhodomelaceae]
Polysiphonia Hertwig, 1882 accepted as Exocoelactis Carlgren, 1925 [Family: Exocoelactinidae]
Polysiphonia Lendenfeld, 1885 accepted as Exocoelactis Carlgren, 1925 [Family: Exocoelactiidae]
Polysiphonia Pomel, 1872 † accepted as Siphonia Parkinson, 1822 † [Family: Hallirhoidae]
Polysiphonia R.K. Greville, 1823 [2] accepted as Polysiphonia Greville, 1823 [Family: Rhodomelaceae]
Polysiphonia abscissa J.D. Hooker & Harvey, 1845
Polysiphonia abscissoides Womersley, 1979
Polysiphonia acanthina J.G. Agardh, 1863
Polysiphonia acanthophora Harvey, 1844 accepted as Echinothamnion hookeri (Harvey) Kylin ex P.C. Silva, 1996
Polysiphonia acanthophora Kützing, 1843 accepted as Polysiphonia sertularioides (Grateloup) J.G. Agardh, 1863
Polysiphonia acanthotricha Kützing, 1847 accepted as Polysiphonia flexella (C. Agardh) J.G. Agardh, 1842
Polysiphonia acroblasta Kützing
Polysiphonia acrolepta Zanardini ex A. De Toni
Polysiphonia aculeata (C. Agardh) Fries, 1845 accepted as Polysiphonia fibrillosa (Dillwyn) Sprengel, 1827
Polysiphonia aculeifera Zanardini, 1847 accepted as Polysiphonia opaca (C. Agardh) Moris & De Notaris, 1839
Polysiphonia acuminata N.L. Gardner, 1927
Polysiphonia adamsiae Womersley, 1979
Polysiphonia adriatica Schiffner, 1933
Polysiphonia adscendens (Bonnemaison) P.L. Crouan & H.M. Crouan
Polysiphonia adscendens Meneghini
Polysiphonia adsendens Meneghini, 1844
Polysiphonia adunca Kützing, 1849 accepted as Lophosiphonia reptabunda (Suhr) Kylin, 1956
Polysiphonia affinis Moore, 1837
Polysiphonia agardhiana Greville
Polysiphonia aggregata accepted as Neosiphonia savatieri (Hariot) M.S. Kim & I.K. Lee, 1999
Polysiphonia akkeshiensis Segi, 1951 accepted as Neosiphonia japonica (Harvey) M.S. Kim & I.K. Lee, 1999
Polysiphonia allochroa (Roth) Duby, 1830
Polysiphonia amentacea (C. Agardh) Montagne
Polysiphonia americana Reinsch
Polysiphonia amethystea Kützing
Polysiphonia amoena Sonder, 1855 accepted as Polysiphonia isogona Harvey, 1855
Polysiphonia amphibia Harvey
Polysiphonia amphibolis Womersley, 1979
Polysiphonia angustissima Kützing, 1864 accepted as Polysiphonia subtilissima Montagne, 1840
Polysiphonia anisogona J.D. Hooker & Harvey, 1845
Polysiphonia anomala Hollenberg, 1968
Polysiphonia apiculata Hollenberg, 1968 accepted as Neosiphonia apiculata (Hollenberg) Masuda & Kogame, 2003
Polysiphonia aquamara I.A. Abbott, 1947 accepted as Neosiphonia tongatensis (Harvey ex Kützing) M.S. Kim & I.K. Lee, 1999
Polysiphonia arachnoidea (C. Agardh) Zanardini, 1840
Polysiphonia arborescens Kützing, 1843 accepted as Polysiphonia elongata (Hudson) Sprengel, 1827
Polysiphonia arctica J.G. Agardh, 1863
Polysiphonia arenaria Harvey
Polysiphonia arenaria Kützing
Polysiphonia arenaria Postels & Ruprecht
Polysiphonia arenicola Kützing
Polysiphonia argentinica W.R. Taylor, 1939 accepted as Neosiphonia harveyi (J.W. Bailey) M.-S. Kim, H.-G. Choi, Guiry & G.W. Saunders, 2001
Polysiphonia argus Kützing, 1864 accepted as Herposiphonia versicolor (Hooker & Harvey) Reinbold, 1899
Polysiphonia armata J.G. Agardh, 1842 accepted as Polysiphonia subulifera (C. Agardh) Harvey, 1834
Polysiphonia aspera Zanardini ex A. De Toni
Polysiphonia asperula (Kützing) Kützing
Polysiphonia asperula Kützing
Polysiphonia aterrima J.D. Hooker & Harvey, 1845
Polysiphonia atlantica Kapraun & J.N. Norris, 1982
Polysiphonia atra Zanardini, 1847
Polysiphonia atricapilla J.G. Agardh, 1863
Polysiphonia atropurpurea Moore, 1837 accepted as Polysiphonia fucoides (Hudson) Greville, 1824
Polysiphonia atrorubens (Wahlenberg) Endlicher
Polysiphonia atrorubescens (Dillwyn) Greville, 1824 accepted as Polysiphonia nigra (Hudson) Batters, 1902
Polysiphonia attenuata Zanardini
Polysiphonia attenuata Zanardini ex A. Ee Toni
Polysiphonia aurantiaca Kützing
Polysiphonia aurata Harvey, 1855 accepted as Tiparraria aurata (Harvey) Womersley, 2003
Polysiphonia australiensis Womersley, 1979
Polysiphonia australis (C. Agardh) J.G. Agardh, 1863 accepted as Brongniartella australis (C. Agardh) F. Schmitz, 1893
Polysiphonia awabiensis Noda
Polysiphonia azorica O.C. Schmidt, 1929
Polysiphonia badia (Dillwyn) Sprengel, 1827 accepted as Polysiphonia nigra (Hudson) Batters, 1902
Polysiphonia badia Kützing, 1849 accepted as Polysiphonia sertularioides (Grateloup) J.G. Agardh, 1863
Polysiphonia baileyi (Harvey) J.G. Agardh
Polysiphonia bajacali Hollenberg, 1961
Polysiphonia balanicola Falkenberg, 1901 accepted as Polysiphonia funebris De Notaris ex J.G. Agardh, 1851
Polysiphonia bambusina Meneghini
Polysiphonia bangi Kützing, 1849 accepted as Brongniartella byssoides (Goodenough & Woodward) F. Schmitz, 1893
Polysiphonia bangii (Kützing) Kützing
Polysiphonia banyulensis Coppejans, 1976
Polysiphonia barbatula Kützing, 1849
Polysiphonia bartlingiana Kützing
Polysiphonia baxteri A.H.S. Lucas, 1935
Polysiphonia beaudettei Hollenberg, 1961
Polysiphonia beguinotii Schiffner & Vatova, 1938
Polysiphonia beguinottii Schiffner, 1938
Polysiphonia bellula De Notaris
Polysiphonia berkeleyi (Montagne) J.D. Hooker, 1847 accepted as Heterosiphonia berkeleyi Montagne, 1842
Polysiphonia bharadwajae Sreenivasa Rao, 1967 accepted as Polysiphonia ferulacea Suhr ex J.G. Agardh, 1863
Polysiphonia biasolettiana Zanardini
Polysiphonia biasolettoana (C. Agardh) J.G. Agardh, 1842 accepted as Polysiphonia deusta (Roth) Sprengel, 1827
Polysiphonia biasolettoana Zanardini, 1841 accepted as Polysiphonia deusta (Roth) Sprengel, 1827
Polysiphonia bicornis Ohta, 1973
Polysiphonia bicornis Sonder, 1880
Polysiphonia biformis Zanardini, 1860
Polysiphonia bifurcata Hollenberg, 1945
Polysiphonia binderi (J.G. Agardh) Goebel
Polysiphonia binderi Bonder
Polysiphonia binneyi Harvey, 1853
Polysiphonia bipinnata Postels & Ruprecht, 1840 accepted as Pterosiphonia bipinnata (Postels & Ruprecht) Falkenberg, 1901
Polysiphonia blandii Harvey, 1862
Polysiphonia boergesenii Baardseth, 1941
Polysiphonia boldii M.J. Wynne & P. Edwards, 1970
Polysiphonia bostrychioides P.L. Crouan & H.M. Crouan, 1865 accepted as Bostrychia moritziana (Sonder ex Kützing) J.G. Agardh, 1863