IRMNG Taxon list
Abas wittii (Grunow) R. Ross & P.A. Sims, 1980
Abrotanifolia barbata Stackhouse, 1809 accepted as Cystoseira barbata (Stackhouse) C. Agardh, 1820
Abrotanifolia discors (Linnaeus) Stackhouse
Abrotanifolia foeniculacea (Linnaeus) Stackhouse
Abrotanifolia loeflingii Stackhouse
Abrotanifolia mucronata (Turner) Stackhouse
Acanthoceras azoricum (Meneghini) Kützing accepted as Ceramium azoricum Meneghini accepted as Ceramium echionotum J.G. Agardh, 1844
Acanthoceras echinophorum (Meneghini) Frauenfeld
Acanthoceras echionotum (J.G. Agardh) Kützing
Acanthoceras madeburgensis Hongimann, 1910
Acanthoceras magdeburgense Honigmann accepted as Acanthoceras zachariasii (Brun) Simonsen
Acanthoceras oxyacanthum Kützing
Acanthoceras shuttleworthianum Kützing, 1842 accepted as Ceramium shuttleworthianum (Kützing) Rabenhorst, 1847
Acanthoceras transcurrens Kützing accepted as Ceramium echionotum J.G. Agardh, 1844
Acanthoceras zachariasii (Brun) Simonsen
Acanthochloris bacillifera Pascher
Acanthochloris brevispinosa Pascher, 1930
Acanthochloris hungarica Palik
Acanthochloris ingens Margalef, 1956
Acanthochloris scherffelii Pascher
Acanthochloris verrucosa Ettl
Acanthochrysis echinococcus Conrad, 1931
Acanthochrysis echinocystus (Conrad) Conrad
Acanthochrysis fusiformis Conrad
Acanthodiscus antarcticus Hajós †
Acanthodiscus clypeolus (Brun) Van Heurck †
Acanthodiscus convexus M. Hajós & H. Stradner †
Acanthodiscus immaculatus (Hanna) V.A. Nikolaev & J.A. Barron †
Acanthodiscus ornatus Hajós †
Acanthodiscus paterus (J.A. Long, D.P. Fuge & J. Smith) V.A. Nikolaev & E. Fourtanier †
Acanthodiscus rugosus Pantocsek †
Acanthodiscus schmidtii Jousé †
Acanthodiscus vulcaniformis Jousé †
Acanthosphaeridium reticulatum M. Hajós & H. Stradner †
Achlya ambisexualis Raper, 1939
Achlya americana Humphrey, 1892
Achlya apiculata de Bary, 1888
Achlya aquatica Dayal & J. Thakur, 1969
Achlya benekei J.S. Furtado, 1965
Achlya bisexualis Coker & Couch, 1927
Achlya bispora (Couch) Langsam, 1986
Achlya brasiliensis A.I. Milanez, 1965
Achlya caroliniana Coker, 1910
Achlya colorata Pringsh., 1882
Achlya conspicua Coker, 1923
Achlya crenulata Ziegler, 1948
Achlya debaryana Humphrey, 1893
Achlya dubia Coker, 1923
Achlya flagellata Coker, 1923
Achlya glomerata Coker, 1912
Achlya heterosexualis Whiffen, 1965
Achlya hypogyna Coker & Pemberton, 1908
Achlya imperfecta Coker, 1923
Achlya intricata Beneke, 1948
Achlya klebsiana Pieters, 1915
Achlya lobata Ziegler & Gilpin, 1954
Achlya megasperma Humphrey, 1892
Achlya mucronata Ziegler, 1958
Achlya oblongata de Bary, 1888
Achlya oligocantha de Bary, 1888
Achlya orion Coker & Couch, 1920
Achlya oviparvula A.L. Rogers & Beneke, 1962
Achlya papillosa Humphrey, 1892
Achlya polyandra Hildebr., 1867
Achlya proliferoides Coker, 1923
Achlya pseudoradiosa A.L. Rogers & Beneke, 1962
Achlya racemosa Hildebr., 1867
Achlya radiosa Maurizio, 1899
Achlya recurva Cornu
Achlya sparrowii Reischer, 1949
Achlya spinosa de Bary, 1882
Achlya treleaseana (Humphrey) Kauffman, 1906
Achlya turfosa Johannes, 1950
Achnantella brevipes (Agardh) Gaillon, 1833 accepted as Achnanthes brevipes C. Agardh, 1824
Achnantheiopsis apiculata (R.M. Patrick) H. Lange-Bertalot, 1997 accepted as Planothidium apiculatum (R.M. Patrick) H. Lange-Bertalot, 1999
Achnantheiopsis aueri (Krasske) H. Lange-Bertalot, 1997 accepted as
Achnantheiopsis biporoma (M.H. Hohn & Hellerman) H. Lange-Bertalot, 1997 accepted as Planothidium biporomum (M.H. Hohn & Hellerman) H. Lange-Bertalot, 1999
Achnantheiopsis borneolanceolata H. Lange-Bertalot, 1997 accepted as Planothidium borneolanceolatum (H. Lange-Bertalot) H. Lange-Bertalot
Achnantheiopsis chilensis (Hustedt) H. Lange-Bertalot, 1997 accepted as Planothidium chilense (Hustedt) H. Lange-Bertalot
Achnantheiopsis daui (Foged) H. Lange-Bertalot, 1997 accepted as Planothidium daui (Foged) H. Lange-Bertalot
Achnantheiopsis delicatula (Kützing) H. Lange-Bertalot, 1997
Achnantheiopsis distincta (Messikommer) H. Lange-Bertalot, 1997
Achnantheiopsis dubia (Grunow) H. Lange-Bertalot, 1997 accepted as Achnanthes lanceolata (Brébisson ex Kützing) Grunow, 1880
Achnantheiopsis engelbrechtii (Cholnoky) H. Lange-Bertalot, 1997 accepted as Achnanthes delicatula (Kützing) Grunow, 1880
Achnantheiopsis fonticolanceolata (H. Lange-Bertalot & Schimanski) H. Lange-Bertalot, 1997 accepted as Planothidium fonticolanceolatum (H. Lange-Bertalot & Schimanski) H. Lange-Bertalot
Achnantheiopsis fragilarioides (J.B. Petersen) H. Lange-Bertalot, 1997
Achnantheiopsis frequentissima (H. Lange-Bertalot) H. Lange-Bertalot, 1997
Achnantheiopsis grana (M.H. Hohn & Hellerman) H. Lange-Bertalot, 1997 accepted as Planothidium granum (M.H. Hohn & Hellerman) H. Lange-Bertalot
Achnantheiopsis hauckiana (Grunow) H. Lange-Bertalot, 1997 accepted as Achnanthes delicatula (Kützing) Grunow, 1880
Achnantheiopsis haynaldii (Schaarschmidt) H. Lange-Bertalot, 1997 accepted as Planothidium haynaldii (Schaarschmidt em.A. Cleve) E.Y. Haworth & M.G. Kelly, 1998
Achnantheiopsis heteromorpha (Grunow) H. Lange-Bertalot accepted as Planothidium heteromorphum (Grunow) H. Lange-Bertalot
Achnantheiopsis holstii (Cleve) H. Lange-Bertalot, 1997 accepted as Planothidium holstii (Cleve) H. Lange-Bertalot
Achnantheiopsis joursacense (Hérib.) H. Lange-Bertalot, 1997 accepted as Planothidium joursacense (Hérib.) H. Lange-Bertalot
Achnantheiopsis lanceolata (Brébisson ex Kützing) H. Lange-Bertalot, 1997
Achnantheiopsis lanceolatoides (Sovereign) H. Lange-Bertalot, 1997 accepted as Planothidium lanceolatoides (Sovereign) H. Lange-Bertalot, 1999
Achnantheiopsis linkei (Hustedt) H. Lange-Bertalot, 1997 accepted as Planothidium linkei (Hustedt) H. Lange-Bertalot
Achnantheiopsis magnifica (Hustedt) H. Lange-Bertalot accepted as Planothidium magnificum (Hustedt) H. Lange-Bertalot
Achnantheiopsis marina (Hustedt) H. Lange-Bertalot, 1997 accepted as Planothidium marinum (Hustedt) H. Lange-Bertalot
Achnantheiopsis minutissima (Krasske) H. Lange-Bertalot, 1997 accepted as Planothidium minutissimum (Krasske) H. Lange-Bertalot
Achnantheiopsis miota (J.R. Carter) H. Lange-Bertalot, 1997 accepted as Planothidium miotum (J.R. Carter) H. Lange-Bertalot