Silva Center for Phycological Documentation: Index Nominum Algarum

The INA is a card file and online reporting system maintained at the Silva Center for Phycological Documentation of the University Herbarium, University of California, Berkeley. It contains nearly 200,000 names of algae (in the broad sense). The BPU is a card file containing bibliographic references pertaining to algal taxonomy.
A working list of algal type specimens at UC is available here

Results from INA database

NameAuthorSourceCitationYear
Lyngbya phormidiumKützing image
Lyngbya phormidium var. rivularisWolle image
Lyngbya phormidium var. tenuisWittrock image
NEOPHORMIDIUMP.K. Misra & P.K. Maithy Palaeobotanist 32: 122 1984
Neophormidium indicumP.K. Misra & P.K. Maithy Palaeobotanist 32: 123, fig. 1D, pl. 1: figs. 9-12 1984
PHORMIDIUM(Kützing) Crouan frat. image
PHORMIDIUMKützing image
PHORMIDIUMKützing ex Gomont Ann. Sc. Nat. Bot. ser. 7, 16: 96 (=key) 156 1892
PHORMIDIUMKützing ex Gomont image
PHORMIDIUMK. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 406 1988
PHORMIDIUM subg. GEITLERINEMAK. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 404 1988
PHORMIDIUM subg. GOMONTINEMAK. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 404 1988
PHORMIDIUM subg. HANSGIRGIAK. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 407 1988
PHORMIDIUM subg. PHORMIDIUMK. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 406 1988
PHORMIDIUM image
Phormidium abronemaSkuja Nova Acta R. Soc. Sci. Upsal., ser. 4, 14{5}: 50, pl. VIII: figs. 25 1949
Phormidium acidophilumJ. Copeland image
Phormidium acula_('acutum')(Brühl & Biswas) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 404 1988
Phormidium acuminatum(Gomont) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 404 1988
Phormidium acuminatum var. longe-attenuatum(Geitler & Ruttner) I. Umezaki & M. Watanabe Jap. J. Phycol. 42: 193 1994
Phormidium acuminatum var. longeattenuatum(Geitler & Ruttner) I. Umezaki & M. Watanabe image
Phormidium acutissimum(H. Kufferath) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 404 1988
Phormidium adspersumRoemer image
Phormidium aerugineo-caeruleum(Gomont) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 407 1988
Phormidium aeruginosumNägeli ex Kützing image
Phormidium aeruginosum var. membranaceumGrunow image
Phormidium aeruginosum var. tenueKützing image
Phormidium affineKützing image
Phormidium africanum f. elongatumThomas & Gonzalves Hydrobiologia 26: 52, fig. 9 1965
Phormidium africanumLemmermann in Mildbraed (ed.) Wiss. Ergebn. Deutsch. Zentral-Afr. Exp. 1907-1908 2: 89 1914
Phormidium alaskenseGomont image
Phormidium allochroumKützing image
Phormidium allorgei(Frémy) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 407 1988
Phormidium ambiguumGomont Ann. Sci. Nat. Bot., ser. 7, 16: 178, pl. 5: fig. 10 1892
Phormidium ambiguum var. majus_('major')Lemmermann image
Phormidium amoenum f. tenuissimum_('tenuissima')Nave image
Phormidium amoenumKützing Phycol. General.: 192 1843
Phormidium amoenumKützing image
Phormidium amoenum var. compactumKützing image
Phormidium amoenum var. infusionumKützing image
Phormidium amphibium(C. Agardh) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 404 1988
Phormidium amphibolumRabenhorst image
Phormidium anabaenoidesDrouet Madron\*~o 16: 108 1961
Phormidium anabaenoidesJao & Y.Y. Lee image
Phormidium anabaenoidesJao & Y.Y. Lee in Jao, Zhu, & Y.Y. Lee [Report of the Scientific Survey of Mount Qomolangma District, 1966-1968]: p. 12, pl. III: figs. 11, 12 1974
Phormidium anagnostidisMolinari & Guiry Notulae algarum 184: 9 2021
Phormidium angustissimum f. majus_('major')Frémy image
Phormidium angustissimum var. saxicolaGardner image
Phormidium angustissimum var. saxicolaN.L. Gardner N.Y. Acad. Sci., Sci. Surv. Porto Rico & Virgin Is. 8: 279, pl. 2: fig. 8 1932
Phormidium angustissimumW. West & G.S. West J. Bot. (London) 35: 298 1897
Phormidium animale(C. Agardh) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 404 1988
Phormidium anissimovae(Elenkin) O.N. Vinogradova Algologia 21: 77 2011
Phormidium anomalum var. majusVasishta image
Phormidium anomalum_('anomala')C.B. Rao Proc. Indian Acad. Sci., Sect. B, 6: 371, figs. 7F-I 1937
Phormidium antarcticumW. West & G.S. West Brit. Antarct. Exped. 1907-9, 1: 292, pl. XXV: figs. 74, 75a-g 1911
Phormidium antliarium(Mertens) Gomont image
Phormidium aqualimpidense_('aqualimpidensis')(P.A.C. Senna & L.V. Ferreira) M.T.P. Azevedo Arch. Hydrobiol. Suppl. 92 (Algol. Stud. 64): 511 1991
Phormidium arboricolaN.M. Lemes-da-Silva, L.H. Zanini-Branco & O. Necchi Jr. Acta Bot. Bras. 24: 920, figs. 2C,D 2010
Phormidium arcuatumSkuja Symb. Bot. Upsal. 9{3}: 52, pl. IV: fig. 25 1948
Phormidium arenarium(C. Agardh) Rabenhorst image
Phormidium arthrospiroides(Virieux) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 407 1988
Phormidium arthurense_('arthurensis')P.M. Novis & G. Visnovsky Phytotaxa 22: 19, figs. 7G-M 2011
Phormidium articulatum(N.L. Gardner) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 404 1988
Phormidium arvense(C.B. Rao) K. Anagnostidis Preslia 73: 370 2001
Phormidium attenuatum(Fritsch) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 407 1988
Phormidium australeKützing image
Phormidium autumnale(C. Agardh) Trevisan Alg. Udin.: 20 1844
Phormidium autumnale f. tenue_('tenuis')W. West & G.S. West image
Phormidium autumnale f. uncinatum(C. Agardh) Boye Petersen image
Phormidium autumnale f. uncinatum(Gomont ex Gomont) Boye Petersen image
Phormidium autumnaleGomont Ann. Sci. Nat. Bot., ser. 7, 16: 187 1892
Phormidium autumnale var. minusGardner image
Phormidium autumnale var. olivaceum_('olivacea')Boresch image
Phormidium azoricumO.C. Schmidt image
Phormidium baculum(Gomont) K. Anagnostidis Preslia 73: 370 2001
Phormidium balliaensePandey & Mitra image
Phormidium balliaensePandey & Mitra image
Phormidium beccarianum(Gomont ex Forti) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 405 1988
Phormidium beggiatoiforme(Gomont) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 405 1988
Phormidium beggiatoiforme f. phormidioidesN.V. Kondrateva Vyzn. Prisnovodn. Vodor. Ukrains'koi RSR 1(2): 117, fig. 47 1968
Phormidium bekesiense(I. Kiss) K. Kiss in Anagnostidis Preslia 73: 374 2001
Phormidium beppuense_('beppuensis')Yoneda image
Phormidium biasolettianumKützing image
Phormidium bicolorKützing image
Phormidium biformeG.H. Schwabe Bol. Soc. Biología Concepción 10: 120, fig. 15 1936
Phormidium biformeKützing image
Phormidium biformeSchwabe image
Phormidium bigranulatum f. brevicellulatum_('brevicellulata')Claus image
Phormidium bigranulatum f. majus_('major')Vasishta image
Phormidium bigranulatumN.L. Gardner Rhodora 28: 2 1926
Phormidium bijahense_('bijahensis')J. Copeland Ann. N.Y. Acad. Sci. 36: 188 1936
Phormidium bijugatumKongisser Trudy Leningradsk. Obshch. Estestvoisp. 54{3}: 70 1924
Phormidium bohneriSchmidle image
Phormidium boryanum(C. Agardh ex Gomont) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 405 1988
Phormidium boryanum f. flexuosum_('flexuosa')(Kützing) Rabenhorst image
Phormidium boryanum f. valesiacum_('valesiaca')(Kützing) Rabenhorst image
Phormidium boryanumKützing image
Phormidium boryanum var. minusT. Mrozińska, M. Olech, & A. Massalski Nova Hedwigia 67: 178, fig. 4 1998
Phormidium boryanum var. minus_('minor')K. Anagnostidis, A. Economou-Amilli, & K. Makris Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 86 1988
Phormidium breve(Kützing ex Gomont) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 405 1988
Phormidium breviarticulatumJao image
Phormidium bryophilumRabenhorst image
Phormidium bulgaricum(Komárek) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 405 1988
Phormidium caerulescens(Gicklhorn) K. Anagnostidis Preslia 73: 370 2001
Phormidium calcareumKützing image
Phormidium calcareumKützing image
Phormidium calcicolaGardner image
Phormidium calciphilumI. Umezaki J. Jap. Bot. 70: 130, figs. 3A, 4B 1995
Phormidium calidum(C. Agardh) Gomont image
Phormidium calidumGomont Ann. Sci. Nat. Bot., ser. 7, 16: 182 1892
Phormidium calidum var. olivaceumGardner image
Phormidium californicumDrouet image
Phormidium canovirideNägeli ex Kützing image
Phormidium carboniciphilum(Prát) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 405 1988
Phormidium carotinosum(Geitler) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 404 1988
Phormidium cataractarum(Nägeli) Gomont image
Phormidium cataractarumRabenhorst image
Phormidium cataractum "Rabenhorst" image
Phormidium caucasicum(Elenkin & Kossinskaja) K. Anagnostidis Preslia 73: 370 2001
Phormidium cebennense f. thermaleGeitler & Ruttner image
Phormidium cebennenseGomont Bull. Soc. Bot. France 46: 38, pl. I: fig. 14 1899
Phormidium cebennense var. asiaticumBorge image
Phormidium ceylanicum var. minus_('minor')Kamat image
Phormidium ceylanicumWille Denkschr. K. Akad. Wiss. [Wien], Math.-Naturw. Kl. 91: 162, pl. III: figs. 30-33 1914
Phormidium chalybeum(Mertens ex Gomont) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 405 1988
Phormidium chalybeum var. depauperatum(J. Copeland) I. Umezaki & M. Watanabe Jap. J. Phycol. 42: 194 1994
Phormidium charcotianumGomont image
Phormidium chlorinum(Kützing ex Gomont) I. Umezaki & M. Watanabe Jap. J. Phycol. 42: 194 1994
Phormidium chlorinum(Kützing) I. Umezaki & M. Watanabe image
Phormidium chungiiN.L. Gardner Univ. Calif. Publ. Bot. 14: 4, pl. 1: fig. 5 1927
Phormidium cincinnatumItzigsohn image
Phormidium cincinnatum var. capitatumB.N. Prasad & Mehrotra image
Phormidium claricentrosum(N.L. Gardner) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 404 1988
Phormidium cliarense(W. West) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 407 1988
Phormidium coerulescensCrouan fr. image
Phormidium conchicolaFrémy Ann. L'Inst. Oceanogr. 22: 118, fig. 8 1945
Phormidium congestumRabenhorst image
Phormidium conradii(Kufferath) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 407 1988
Phormidium conspersumMeneghini ex Kützing image
Phormidium constrictumKlas image
Phormidium contortumMeneghini ms. image
Phormidium corallinae(Gomont) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 405 1988
Phormidium corallyticumK. Rützler & D. Santavy P.S.Z.N.I. Marine Ecology 4: 304, figs. 2-8 1983
Phormidium corbierei(Frémy) K. Anagnostidis Preslia 73: 370 2001
Phormidium corium(C. Agardh) Kützing Phycol. General.: 194 1843
Phormidium corium(C. Agardh) Kützing image
Phormidium corium f. maius_('maior')Schwabe image
Phormidium corium f. majus_('major')S.C. Santra & U.C. Pal image
Phormidium corium f. majus_('major')S.C. Santra & U.C. Pal Phykos 30: 75, fig. 1 1992
Phormidium coriumGomont image
Phormidium corium var. acuminatumPlayfair image
Phormidium corium var. capitatumN.L. Gardner image
Phormidium corium var. constrictumPlayfair image
Phormidium corium var. inaequaleKützing image
Phormidium corium var. inaequaleKützing image
Phormidium corium var. tenuiorRabenhorst image
Phormidium coutinhoiJ. Sampaio image
Phormidium crassius(Behre) K. Anagnostidis Preslia 73: 370 2001
Phormidium crassiusculumKützing image
Phormidium crassiusculumKützing image
Phormidium crassivaginatum(Claus) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 407 1988
Phormidium crosbyanumTilden Amer. algae: 645 1909
Phormidium crouanii var. fritschiiWoodhead & Tweed image
Phormidium crouanii_('crouani')Gomont Ann. Sci. Nat. Bot., ser. 7, 16: 175 1892
Phormidium crustaceumWoronichin Bot. Zhurn. SSSR 17: 314, pl. V: fig. 33 1932
Phormidium curtumHollerbach Trudy Bot. Inst. Akad. Nauk SSSR, Spor. Rast. 2: 45, pl. II: figs. 10, 11 1935
Phormidium curvatum(Kützing) Hieronymus image
Phormidium deflexoides(Elenkin & Kossinskaja) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 404 1988
Phormidium deflexum(W. West & G.S. West) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 404 1988
Phormidium demingiiM.A. Howe image
Phormidium desikacharyiense_('desikacharyiensis')Vasishta image
Phormidium detersumGomont image
Phormidium dictyothallumSkuja Symb. Bot. Upsal. 9{3}: 51, pl. V: figs. 8-11 1948
Phormidium diguetii(Gomont) Anagnostidis & Komárek Arch. Hydrobiol. Suppl. 80: 408 1988
Phormidium dimorphumLemmermann image
Phormidium dudichianum_('dudicsianum')(Claus) K. Anagnostidis Preslia 73: 370 2001
Phormidium durumGardner image
Phormidium ectocarpi f. fuscescensFrémy image
Phormidium ectocarpiGomont Bull. Soc. Bot. France 46: 37, pl. I: fig. 13 1899
Phormidium edessaeSkuja image
Phormidium endolithicumErcegovic image
Phormidium endolithicum f. lacustre_('lacustris')Cado image
Phormidium endolithicum f. lacustre_('lacustris')C\*vado Zborn. Rabot. Hidrobiol. Zavod Ohrid [Univ. Skopje] 6{3}: 4(Se), 11(G), fig. 3 1958
Phormidium endophyticum(W. West & G.S. West) Skuja image
Phormidium endospongeliaeI. Umezaki J. Jap. Bot. 70: 131, figs. 3B, 4C 1995
Phormidium epiphyticumGardner image
Phormidium epiphyticumN.L. Gardner New York Acad. Sc., Sc. Surv. Porto Rico & Virgin Is. 8: 281, pl. 1: fig. 6 1932
Phormidium ercegovicii_('Ercegovići')C\*vado Zbornik na Rabotite Hidrobiolos\*vki Zavod Ohrid [Univ. Skopje] 6{3}: 5 (Se), 11 (G), fig. 4 1958
Phormidium etoshiiP. Dadheech, D.A. Casamatta, P. Casper & L. Krienitz Fottea 13: 237, figs. 2, 5-8 2013
Phormidium exospirum(Skuja) K. Anagnostidis Preslia 73: 370 2001
Phormidium fasciculatumKützing Tab. phyc. 1: 35, pl. 49: fig. VII 1847
Phormidium fasciculatumKützing image
Phormidium fasciculatumNägeli ms. image
Phormidium favosum(Bory) Gomont image
Phormidium favosum f. tenuius_('tenuior')Petkoff image
Phormidium favosumGomont Ann. Sci. Nat. Bot., ser. 7, 16: 180 1892
Phormidium favosum var. minusVasishta image
Phormidium favosum var. spiraleLemmermann image
Phormidium feldmannii_('Feldmanni')Frémy image
Phormidium firmumKützing image
Phormidium flexuosumKützing image
Phormidium fonticolaKützing Phyc. Gen. 195 1843
Phormidium fonticolaKützing image
Phormidium fonticolaKützing ex Gomont Ann. Sci. Nat. Bot., ser. 7, 16: 191 1892
Phormidium fonticola var. pulchrumKützing image
Phormidium foreaui(Frémy) I. Umezaki & M. Watanabe Jap. J. Phycol. 42: 194 1994
Phormidium foreaui(Frémy) I. Umezaki & M. Watanabe image
Phormidium formosum(Bory ex Gomont) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 405 1988
Phormidium foveolarum f. minusAnand image
Phormidium foveolarum f. moniliforme_('moniliformis')Anand image
Phormidium foveolarumGomont Ann. Sci. Nat. Bot., ser. 7, 16: 164 1892
Phormidium foveolarum var. moniliformeAnand image
Phormidium fragile(Meneghini) Gomont in Bornet Bull. Soc. Bot. France 38: 249 1891
Phormidium fragile f. longaM. Gupta & D.C. Pandey image
Phormidium fragile f. maiusClaus Nova Hedwigia 4: 69, pl. 35: fig. 9 1962
Phormidium fragileGomont Ann. Sci. Nat. Bot., ser. 7, 16: 159 (=key), 163, pl 4: figs. 13-15 1892
Phormidium franquetii_('franqueti')Bourrelly Bull. Soc. Bot. France 96: 232, fig. [p.p.] 1950
Phormidium frigidumFritsch Natl. Antarct. Exped. ['Discovery'], Nat. Hist. 6 [art.3]: 31, pl. I: fig. 52 1912
Phormidium fuellebornii_('Füllebornii')Schmidle image
Phormidium fuscoluteum_('fusco-luteum')Nägeli ex Kützing image
Phormidium gardneriMuzafarov image
Phormidium gardnerianumDrouet Publ. Field Mus. Nat. Hist., Bot. Ser. 20: 140, pl. III: fig. 17 1942
Phormidium gebhardtianum(Claus) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 405 1988
Phormidium gelatinicolaGeitler Arch. Hydrobiol. Suppl. 12: 633, no fig. 1933
Phormidium gelatinosum f. ochridanum_('ochridana')Cado image
Phormidium gelatinosum f. ochridanum_('Ochridana')C\*vado Zborn. Rabot. Hidrobiol. Zavod Ohrid [Univ. Skopje] 6{5}: 12 (Se), 40 (F), fig. 7 1958
Phormidium gelatinosumWoronichin Bot. Mater. Inst. Spor. Rast., Bot. Sada R.S.F.S.R. 2: 97 1923
Phormidium geysericolaJ. Copeland Ann. N.Y. Acad. Sci. 36: 186, fig. 66 1936
Phormidium glaciale f. longiarticulatum_('longiarticulata')Wille image
Phormidium glacialeW. West & G.S. West Brit. Antarct. Exped. 1907-9, 1: 291, pl. XXV: figs. 73a-73d 1911
Phormidium glacialeWest & West image
Phormidium glutinosum(C. Agardh) A. Braun in Rabenhorst Alg. Sachs. Dec. 21/22: no. 205 1852
Phormidium glutinosum(C. Agardh) Rabenhorst image
Phormidium gracile(Rabenhorst ex Gomont) K. Anagnostidis Preslia 73: 370 2001
Phormidium gracileLindstedt Flora Mar. Cyan. Schwed. Westk. 69, pl. 8: fig. 10 1943
Phormidium gracile var. roseumLindstedt image
Phormidium grandePlayfair image
Phormidium granulatum(N.L. Gardner) K. Anagnostidis Preslia 73: 370 2001
Phormidium griseo-violaceum(Skuja) K. Anagnostidis Preslia 73: 370 2001
Phormidium groesbeckianumDrouet image
Phormidium grunowianum(Gomont) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 405 1988
Phormidium guyanenseMontagne image
Phormidium gyrale_('gyralis')B.N. Prasad & Mehrotra image
Phormidium halophilum(Hansgirg ex Gomont) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 408 1988
Phormidium hamelii(Frémy) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 405 1988
Phormidium hancockii(Drouet) Drouet image
Phormidium hansgirgii_('Hansgirgi')Schmidle image
Phormidium hendersoniiHowe Smithsonian Misc. Coll. 68{11}: 2, fig. [s.n.] 1918
Phormidium henningsiiLemmermann KryptFl. Mark Brandenburg 3: 124, no. fig. 1907
Phormidium heteropolareSkuja image
Phormidium hiemale(Jaag) K. Anagnostidis Preslia 73: 370 2001
Phormidium hieronymusiiLemmermann image
Phormidium hieronymusii_('hieronymi')Lemmermann image
Phormidium holdenii(Forti) L.H.Z. Branco, C.L. Sant'Anna, M.T.P. Azevedo, & L. Sormus Arch. Hydrobiol. Suppl. 118 (Algol. Stud. 84): 45 1997
Phormidium hormoidesSetchell & Gardner image
Phormidium hormoidesSetchell & N.L. Gardner in Gardner Univ. Calif. Publ. Bot. 6: 467, pl. 40: fig. 23 1918
Phormidium hoshiarpurenseVasishta image
Phormidium hyalinumBongale image
Phormidium hydrocoleoidesDrouet image
Phormidium hypersalinumCampbell & Golubić Arch. Hydrobiol. Suppl. 71: 325, figs. 5, 6 1985
Phormidium hypersalinumCampbell & Golubic image
Phormidium hypolimneticumS.E. Campbell Arch. Hydrobiol. Suppl. 71: 184, fig. 1 (=var. hypolimneticum), fig. 4 (=unspecified) 1985
Phormidium hypolimneticum var. majus_('major')S.E. Campbell image
Phormidium hypolimneticum var. maximum_('maxima')S.E. Campbell image
Phormidium ibusukiense(Emoto & Yoneda) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 405 1988
Phormidium inaequaleKützing image
Phormidium inaequaleNägeli ex Kützing image
Phormidium incrustatum(Nägeli) Gomont mscr image
Phormidium incrustatumGomont ex Gomont image
Phormidium incrustatum var. cataractarum(Nägeli) Gomont image
Phormidium incrustatum var. cataractarumGomont image
Phormidium incrustatum var. incrustatumGomont image
Phormidium ingricum(Woronichin) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 405 1988
Phormidium insigne(Skuja) K. Anagnostidis Preslia 73: 370 2001
Phormidium insulare(N.L. Gardner) P.A.C. Senna & P. Compère in P.A.C. Senna, M.G.M. Souza, & P. Compère Scripta Bot. Belg. 16: 81 1998
Phormidium interruptum f. radiansRabenhorst image
Phormidium interruptum f. tenuius_('tenuior')Rabenhorst image
Phormidium interruptumKützing image
Phormidium interruptumKützing image
Phormidium interruptum var. capitatumGardner image
Phormidium interruptum var. rigidumGardner image
Phormidium inundatumKützing image
Phormidium inundatumKützing ex Gomont image
Phormidium inundatum var. conspersumMeneghini image
Phormidium ionicum(Skuja) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 404 1988
Phormidium irriguum(Kützing) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 405 1988
Phormidium irriguum f. minus_('minor')K. Sciuto & I. Moro in Sciuto et al. Cladistics 28: 370, figs. 1-6 2012
Phormidium jadinianumGomont in F. Jadin Bull. Soc. Bot. France 40: CLXI, fig. [s.n.] 1894
Phormidium jasorvense_('jasorvensis')(Vouk) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 404 1988
Phormidium jenkelianum f. majusVasishta image
Phormidium jenkelianumG. Schmid Ber. Deutsch. Bot. Ges. 32: 126, fig. 2 1914
Phormidium joannianumKützing image
Phormidium joannianumKützing Phyc. gen.: 193 1843
Phormidium julianum(Meneghini) Rabenhorst image
Phormidium karakalpakense(Muzafarov) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 405 1988
Phormidium kermesinumMeneghini image
Phormidium koettlitzii(Fritsch) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 405 1988
Phormidium kolkwitziiKomárek in Anagnostidis Preslia 73: 374, fig. 12 2001
Phormidium komaroviiAnissimova in Elenkin Monogr. Alg. Cyanophyc., Pars Spec. 2: 1468 1949
Phormidium kondratjevae_('kondratjevi')O.N. Vinogradova Algologia 21: 79 2011
Phormidium konstantinosumI. Umezaki & M. Watanabe Jap. J. Phycol. 42: 195 1994
Phormidium koprophilum(Skuja) K. Anagnostidis Preslia 73: 371 2001
Phormidium koreanumG.S. An Fragm. Floristic. Geobot. 37: 407, fig. 1 1992
Phormidium kuetzingianum(Kirchner ex Forti) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 408 1988
Phormidium kuetzingianum_('kützingianum')Le Jolis image
Phormidium kuetzingii_('Kützingii')Rabenhorst image
Phormidium kwangsienseC.-C. Jao Sinensia 15: 87, pl. II: figs. 11, 12 1944
Phormidium kwangsienseJao image
Phormidium lacustreK. Anagnostidis Preslia 73: 370 2001
Phormidium lacustreNägeli ex Kützing image
Phormidium laetevirens(P. Crouan & H. Crouan ex Gomont) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 405 1988
Phormidium laminosum(C. Agardh) Gomont J. Bot. [Paris] 4: 355 1890
Phormidium laminosum f. circinatum_('circinata')Anagnostidis image
Phormidium laminosum f. homogeneum_('homogenea')Wille image
Phormidium laminosum f. weediiJ.M. Tilden image
Phormidium laminosum f. weediiTilden Bot. Gaz. 25: 99, pl. XX: fig. 16 1898
Phormidium laminosumGomont Ann. Sci. Nat. Bot., ser. 7, 16: 167 1892
Phormidium laminosum var. aerugineum_('aeruginea')Boresch image
Phormidium laminosum var. maiusLaloraya & Mitra image
Phormidium laminosum var. maiusLaloraya & Mitra invalid image
Phormidium laminosum var. majus_('major')Laloraya & Mitra image
Phormidium laminosum var. olivaceofuscum_('olivaceo-fusca')Boresch image
Phormidium lapideumGeitler Arch. Hydrobiol. Suppl. 12: 633, no fig. 1933
Phormidium laysanenseLemmermann image
Phormidium leptodermumKützing image
Phormidium leptodermum var. capitatumGardner image
Phormidium lignicolaFrémy Arch. Bot. Mém. 3{2}: 142, fig. 125 1930
Phormidium lignicolaFrémy image
Phormidium limicolaKützing image
Phormidium limosum(Dillwyn) P.C. Silva image
Phormidium limosumP.C. Silva in Silva, Basson, & Moe, Univ. Calif. Publ. Bot. 79: 52, pl. 20 (in Dillwyn, British Confervae) 1996
Phormidium lismorense(Playfair) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 408 1988
Phormidium litoraleGolubic image
Phormidium lividumNägeli ex Kützing image
Phormidium lloydianum(Gomont) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 405 1988
Phormidium lucidum(C. Agardh) Kützing image
Phormidium lucidum f. tenuius_('tenuior')Melnikova image
Phormidium lucidumKützing ex Gomont Ann. Sc. Nat. Bot. ser. 7, 16: 160 (=key) 179, pl. 5: figs. 11, 12 1892
Phormidium lucidumKützing ex Gomont image
Phormidium lucidum var. amoenum(Kützing) Playfair image
Phormidium lumbricaleJ.R. Johansen & D.A. Casamatta in D.A. Casamatta, J.R. Johansen, M.L. Vis, & S.T. Broadwater J. Phycol. 41: 431, fig. 5B-E 2005
Phormidium luridum(Kützing) Gomont image
Phormidium luridum f. nigrescensFrémy image
Phormidium luridum f. violacescensFrémy image
Phormidium luridumGomont Ann. Sci. Nat. Bot., ser. 7, 15: 330 1892
Phormidium luridum var. fuscum_('fusca')Boresch image
Phormidium luridum var. olivaceum_('olivacea')Boresch image
Phormidium luridum var. violaceum_('violacea')Boresch image
Phormidium lusitanicum(J. Sampaio) K. Anagnostidis Preslia 73: 371 2001
Phormidium lutescens(Hansgirg) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 408 1988
Phormidium lyngbyaceumKützing Phycol. General.: 194 1843
Phormidium lyngbyaceumKützing image
Phormidium lyngbyaceum var. rhaeticumBrügger image
Phormidium macedonicumCado image
Phormidium majusculum(Dillwyn) Kützing image
Phormidium maraaense(Setchell) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 405 1988
Phormidium margaritiferumKützing image
Phormidium martini_('martinii')(Frémy) Anagnostidis & Komárek Arch. Hydrobiol. Suppl. 80: 405 1988
Phormidium mehrae_('mehrai')Vasishta image
Phormidium melanochroum_('melanochroun')V. Lamprinou & A. Pantazidou in Lamprinou et al. Fundamental and Applied Limnology 182: 113, fig. 2 2013
Phormidium membranaceum f. rivularioidesGrunow image
Phormidium membranaceumKützing image
Phormidium membranaceum var. biforme 'Kützing' image
Phormidium membranaceum var. biformeKützing image
Phormidium membranaceum var. inaequale(Nägeli) Rabenhorst image
Phormidium membranaceum var. inaequaleNägeli image
Phormidium membranaceum var. subaequaleGrunow image
Phormidium membranaceum var. vialeRabenhorst image
Phormidium meneghinianumKützing image
Phormidium meneghinianum var. crassiusculum(Kützing) Rabenhorst image
Phormidium meslinii(Frémy) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 405 1988
Phormidium microtomumSkuja Nova Acta R. Soc. Sci. Upsal., ser. 4, 14{5}: 51, pl. VIII: figs. 26, 27 1949
Phormidium minimumO.C. Schmidt image
Phormidium minnesotense(Tilden) Drouet Publications of the Field Museum of Natural History, Botanical Series, 20: 136 1942
Phormidium minutumLindstedt image
Phormidium minutumLindstedt Fl. Mar. Cyan. Schwed. Westk. 80: 68, pl. 8: figs. 8, 17 1943
Phormidium minutumSkvortzov image
Phormidium moerlianumGrunow image
Phormidium molischii(Vouk) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 408 1988
Phormidium molle(Kützing) Gomont image
Phormidium molle f. elongatumAnand image
Phormidium molle f. elongatum_('elongata')Anand image
Phormidium molle f. longiarticulatumJao image
Phormidium molle f. minus_('minor')Anand image
Phormidium molle f. tenuius_('tenuior')West & West image
Phormidium molleGomont Ann. Sci. Nat. Bot., ser. 7, 16: 159 (=key), 163 1892
Phormidium molle var. chlorinumFjerdingstad image
Phormidium molle var. kwangsienseC.-C. Jao Sinensia 15: 87 1944
Phormidium molle var. kwangsienseJao image
Phormidium molle var. minus_('minor')C.D. Gebelein image
Phormidium molle var. minus_('minor')C.D. Gebelein in B.W. Logan, P. Hoffman, & C.D. Gebelein, Mem. Amer. Assoc. Petrol. Geolog. 22: 194 1974
Phormidium molle var. tenue_('tenuis')Woronichin image
Phormidium monileSetchell & Gardner image
Phormidium monileSetchell & N.L. Gardner Proc. Calif. Acad. Sci. IV, 19: 119, pl. 4: fig. 2 1930
Phormidium moniliformeGomont image
Phormidium moniliformeGomont image
Phormidium mucicola f. crassumSkuja Symb. Bot. Upsal. 9{3}: 52, pl. IV: fig. 24 1948
Phormidium mucicola f. elongatumMuzafarov image
Phormidium mucicola f. roseum_('rosea')Skuja Nova Acta R. Soc. Sci. Upsal., ser. 4, 16{3}: 66, text-fig. 1:2 1956
Phormidium mucicolaNaumann & Huber-Pestalozzi in Huber-Pestalozzi & Naumann Ber. Deutsch. Bot. Ges. 47: 69, Abb. 1-6 1929
Phormidium mucosumGardner image
Phormidium mucosumN.L. Gardner Mem. N.Y. Bot. Gard. 7: 43, pl. 9: fig. 84 1927
Phormidium mucosum var. arvenseC.B. Rao Proc. Indian Scad. Sci., sect. B, 6: 368, fig. 7D,E 1937
Phormidium muraleKützing ex Roemer image
Phormidium murrayi(W. West & G.S. West) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 408 1988
Phormidium muscorum(Gomont) Dalla Torre & Sarnthein Algen Tirol, Vorarlberg und Liechtenstein: 146 1901
Phormidium mycoideumFrémy in Feldmann & Frémy Notes Stat. Océanogr. Salammbo\*^ 29: 12, figs. 1, 2 1935
Phormidium naegelianumKützing image
Phormidium natans(Gomont) P.A.C. Senna & P. Compère in P.A.C. Senna, M.G.M. Souza, & P. Compère, Scripta Bot. Belg. 16: 81 1998
Phormidium naveanumGrunow image
Phormidium naveanum var. marinum_('marina')C.K. Tseng & M. Hua apud M. Hua & C.K. Tseng in C.K. Tseng (ed.) Common seaweeds of China: 24, pl. 16: figs. 3a, 3b 1983
Phormidium nemuroense(Yoneda) I. Umezaki & M. Watanabe Jap. J. Phycol. 42: 197 1994
Phormidium nigroviride_('nigro-viride')(Thwaites ex Gomont) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 405 1988
Phormidium nigrum(Vaucher ex Gomont) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 405 1988
Phormidium nostochoidesC.-C. Jao Bot. Bull. Acad. Sinica 2: 169, fig. 1,g 1948
Phormidium nostochoidesJao image
Phormidium numariumPlayfair image
Phormidium numidicum(Gomont) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 404 1988
Phormidium obscurumKützing Phyc. germ.: 162 1845
Phormidium obscurumKützing image
Phormidium okenii(C. Agardh ex Gomont) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 405 1988
Phormidium olivaceumRabenhorst image
Phormidium olivascensFrémy image
Phormidium orientale f. minus_('minor')Laloraya & Mitra invalid image
Phormidium orientaleG.S. West J. Bot. [London] 40: 248, pl. 439: figs. 25-27 1902
Phormidium orientale var. breviarticulatum_('breviarticulata')N.L. Gardner image
Phormidium orientale var. longiarticulatumHalász image
Phormidium orientale var. longiarticulatumHalász image
Phormidium ornatum(Kützing ex Gomont) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 406 1988
Phormidium oryzetorumMartens image
Phormidium pachydermaticumFrémy image
Phormidium pallidumNägeli image
Phormidium paludosumJao & Y.Y. Lee image
Phormidium pannosum(Bory) Kützing image
Phormidium pannosum var. crassiusKützing image
Phormidium pannosum var. vialeKützing image
Phormidium papillaterminatum_('papillaterminata')Kisselev image
Phormidium papyraceum(C. Agardh) Gomont image
Phormidium papyraceum(C. Agardh) Rabenhorst image
Phormidium papyraceum f. lutescensS. Stockmayer in Zahlbruckner, Annalen des Naturhistorischen Museums in Wien 15: 176, no fig. 1900
Phormidium papyraceum f. lutescensStockmayer image
Phormidium papyraceumGomont Ann. Sci. Nat. Bot., ser. 7, 16: 173 1892
Phormidium papyraceum var. biasolettianum(Kützing) Rabenhorst image
Phormidium papyraceum var. spadiceum(Carmichael) Rabenhorst image
Phormidium papyrinum(Bory) Kützing image
Phormidium parallelumKützing image
Phormidium paucigranatum(Brühl & Biswas) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 406 1988
Phormidium paulsenianumBoye Petersen image
Phormidium paulsenianum f. takyricumNovichkova Bot. Mater., Otd. Spor. Rast., Bot. Inst. Akad. Nauk SSSR 13: 33, fig. 7 1960
Phormidium pavlovskoenseElenkin Monogr. Alg. Cyanophyc., Pars Spec. 2: 1501-1502 1949
Phormidium penicellatumGomont image
Phormidium penicillatum f. vaginataFrémy image
Phormidium penicillatumGomont Bull. Soc. Bot. France 40(sess. extraord.): LXXXVIII, pl. IV: figs. 5-7 1893
Phormidium persicinumGomont Ann. Sci. Nat. Bot., ser. 7, 16: 164 1892 (fixed by Art. 13(e), ICBN)
Phormidium pilosum var. novae-semliaeShirshov Trans. Arctic Inst. 14: 162, pl. II: fig. 13 1935
Phormidium plicatumKützing image
Phormidium priestleyiF.E. Fritsch Brit. Antarct. ("Terra Nova") Exped. 1910, Bot.: 10, fig. 16 1917
Phormidium productum(W. West & G.S. West) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 406 1988
Phormidium proteus(Skuja) I. Umezaki & M. Watanabe Jap. J. Phycol. 42: 196 1994
Phormidium pseudacutissimum(Geitler) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 404 1988
Phormidium pseudo-okeniiS. Turicchia, S. Ventura, J. Komárková, & J. Komárek Nova Hedwigia 89: 185-186, fig. 14 2009
Phormidium pseudocortianum(Starmach) K. Anagnostidis Preslia 73: 371 2001
Phormidium pseudopriestleyiK. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 406 1988
Phormidium pseudotenueStockmayer & Skuja apud Skuja in Handel-Mazzetti Symb. sin. 1: 39, pl. II: figs. 15, 16 1937
Phormidium pseudovalderianumWoronichin Trudy Leningradsk. Obshch. Estestvoisp. 60{3}: 68 1930
Phormidium publicumKützing image
Phormidium pulvinatumCollins in Britton & Millspaugh Bahama Fl.: 621 1920
Phormidium pulvinatumWoronichin Bot. Mater. Inst. Sporov. Rast. Glavn. Bot. Sada RSFSR 2: 98 1923
Phormidium purpurascens(Kützing) Gomont image
Phormidium purpurascens f. ochridianum_('ochridana')Cado image
Phormidium purpurascensGomont J. Bot. [Paris] 4: 355 1890
Phormidium purpurascens var. circinnatumVirieux image
Phormidium purpurascens var. elegansDrouet Bot. Gaz. 95: 696, fig. 3 1934
Phormidium purpurascens var. homogeneumGardner image
Phormidium purpurascens var. homogeneumN.L. Gardner Mem. N.Y. Bot. Garden 7: 45 1927
Phormidium purpurascens var. laminatumJ. Copeland image
Phormidium puteale(Montagne) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 408 1988
Phormidium puteale var. minus_('minor')(Geitler) I. Umezaki & M. Watanabe Jap. J. Phycol. 42: 197 1994
Phormidium quadripunctulatum_('quadripunctulata')(Brühl & Biswas) N.L. Gardner image
Phormidium racovitzaeDe Wildeman image
Phormidium ramosumJ.B. Petersen Bot. Iceland 2: 281, figs. 3, 4 1923
Phormidium raoiP.A.C. Senna & P. Compère in P.A.C. Senna, M.G.M. Souza, & P. Compère Scripta Bot. Belg. 16: 81 1998
Phormidium regelii(Skuja) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 406 1988
Phormidium retzii(C. Agardh) Kützing image
Phormidium retzii f. fasciculatum_('fasciculata')Gomont Ann. Sci. Nat. Bot. ser. 7, 16: 177, pl. V: fig. 9 1892
Phormidium retzii f. majus_('major')Parukutty image
Phormidium retzii f. purpurascensGrunow image
Phormidium retzii f. rupestre_('rupestris')Gomont Ann. Sci. Nat. Bot. ser. 7, 16: 177, pl. V: fig. 8 1892
Phormidium retzii f. tenue_('tenuis')Rabenhorst image
Phormidium retziiGomont Ann. Sci. Nat. Bot. ser. 7, 16: 160 (=key), 175, pl. V: figs. 6, 7 1892
Phormidium retzii var. nigroviolaceum_('nigro-violacea')Wille image
Phormidium richardsiiDrouet image
Phormidium rimosum(Komárek) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 408 1988
Phormidium rivulareKützing image
Phormidium rivulare var. rupestre(C. Agardh) Kützing image
Phormidium rivulare var. rupestre(C. Agardh) Kützing Phyc. gen.: 195 1843
Phormidium roseum(Batters) K. Anagnostidis Preslia 73: 371 2001
Phormidium rotheanumItzigsohn in Rabenhorst Alg. Sachs. Dec. 21/22: no. 206 1852
Phormidium rotheanum var. capitatumDesikachary image
Phormidium rotheanum var. capitatumDesikachary Cyanophyta: 258 1959
Phormidium rotundum_('rotunda')S.C. Santra & U.C. Pal Phykos 30: 76, fig. 2 1992
Phormidium rubidum(Frémy) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 408 1988
Phormidium rubriterricolaN.L. Gardner Mem. New York Bot. Gard. 7: 43, pl. 9: fig. 86 1927
Phormidium rubroterricola var. majusVasishta image
Phormidium rubroviolaceum_('rubro-violaceum')(Crouan) Gomont image
Phormidium rubrumTilden Amer. Alg.: 186 1896
Phormidium rufescensKützing image
Phormidium rupestre(C. Agardh) Kützing Tab. phycol. 1: 35 1847
Phormidium rupestre(C. Agardh) Kützing image
Phormidium rupestre var. rivulareKützing image
Phormidium rupestre var. tingensKützing image
Phormidium rupicola_('rupicolum')(Hansgirg ex Gomont) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 406 1988
Phormidium sakasitae_('sakashitae')(Yoneda) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 406 1988
Phormidium salgadenseMolinari & Guiry Notulae algarum 184: 8 2021
Phormidium salinarum(Collins) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 406 1988
Phormidium salinum(Alten) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 406 1988
Phormidium salinumRoemer image
Phormidium sauteriGrunow image
Phormidium schroederi(O. Borge) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 406 1988
Phormidium schroeteri(Hansgirg) K. Anagnostidis Preslia 73: 371 2001
Phormidium schultzii(Lemmermann) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 406 1988
Phormidium scytonematicolaGardner image
Phormidium scytonematicolaN.L. Gardner Mem. N.Y. Bot. Gard. 7: 42 1927
Phormidium scytonematicola var. minusGardner image
Phormidium scytonematicola var. minusN.L. Gardner Mem. N.Y. Bot. Garden 7: 42 1927
Phormidium setchellianumGomont Ann. Sc. Nat. Bot. ser. 7 16: 161, 190 (=key), pl. 5: figs. 25, 26 1892
Phormidium simplicissimum(Gomont) Anagnostidis & Komárek Arch. Hydrobiol. Suppl. 80: 406 1988
Phormidium sinenseJao image
Phormidium smaragdinum(Kützing) Kützing image
Phormidium smaragdinum var. thermarumNägeli image
Phormidium solitare(Kützing ex Gomont) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 408 1988
Phormidium solitare(Kützing) Rabenhorst image
Phormidium solitare f. crassius_('crassior')Rabenhorst image
Phormidium solitareForti in De Toni, Syll. alg. 5: 236 1907
Phormidium spadiceumKützing image
Phormidium spiraleC.-C. Jao Bot. Bull. Acad. Sinica 2: 169, fig. 1,c 1948
Phormidium spiraleJao image
Phormidium spirale_('spiralis')Vasishta image
Phormidium spirulinoidesI. Umezaki & M. Watanabe Jap. J. Phycol. 42: 196 1994
Phormidium splendidum(Greville ex Gomont) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 404 1988
Phormidium spongeliae(F.E. Schulze) Gomont image
Phormidium spongeliaeGomont Ann. Sci. Nat. Bot., ser. 7, 16: 161 1892
Phormidium spongicolaWeber-van Bosse image
Phormidium stagninumK. Anagnostidis Preslia 73: 371 2001
Phormidium stagninum var. maiusKamat image
Phormidium stagninum var. minusVasishta image
Phormidium stagninum var. robustumVasishta image
Phormidium stagninum_('stagnina')Bhashyakarla Rao J. Ind. Bot. Soc. 17: 93, figs. 4-7 1938
Phormidium standleyiDrouet Publ. Field Mus. Nat. Hist., Bot. Ser. 20: 139, pl. II: fig. 14 1942
Phormidium steyermarkiiDrouet image
Phormidium stragulum(Kützing) Rabenhorst image
Phormidium subcapitatumJ.B. Petersen Bot. Iceland 2: 282, fig. 5 1923
Phormidium subcontinuumNägeli ms. image
Phormidium subfuscumKützing image
Phormidium subfuscumKützing image
Phormidium subfuscum var. firmum(Kützing) Rabenhorst image
Phormidium subfuscum var. joannianumGomont Ann. Sci. Nat. Bot., ser. 7, 16: 184 1892
Phormidium subfuscum var. membranaceumRabenhorst image
Phormidium subhormoidesG.S. An Fragm. Floristic. Geobot. 37: 408, fig. 2 1992
Phormidium subincrustatumF.E. Fritsch & F. Rich image
Phormidium subincrustatumF.E. Fritsch & M.F. Rich Trans. Roy. Soc. South Africa 18: 82, fig. 27 I-L 1929
Phormidium submembranaceum(Ardissone & Strafforello) Gomont image
Phormidium submembranaceum f. minus(Anand) Powell image
Phormidium submembranaceumGomont Ann. Sci. Nat. Bot., ser. 7, 16: 180 1892
Phormidium submembranaceum var. minus_('minor')Anand image
Phormidium submembranaceum var. minus_('minor')Anand image
Phormidium subproboscideum(W. West & G.S. West) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 406 1988
Phormidium subsalsumGomont Bull. Soc. Bot. France 46: 38, pl. I: figs. 15, 16 1899
Phormidium subsolitariumW. West & G.S. West image
Phormidium subspiroides(J. Copeland) I. Umezaki & M. Watanabe Jap. J. Phycol. 42: 197 1994
Phormidium subterraneumJ. Copeland Ann. New York Acad. Sci. 36: 188 1936
Phormidium subtilissimum(Kützing) P. Richter image
Phormidium subtorulosumBrébisson ex Kützing image
Phormidium subtruncatum var. constrictumClaus image
Phormidium subtruncatumWoronichin Trudy Leningradsk. Obshch. Estestvoisp. 60{3}: 69 1930
Phormidium subuliforme(Thwaites ex Gomont) Anagnostidis & Komárek image
Phormidium subuliforme(Thwaites ex Gomont) Anagnostidis & Komárek Arch. Hydrobiol. Suppl. 80: 406 1988
Phormidium subuliformeGomont Ann. Sci. Nat. Bot. ser. 7, 16: 189, pl. 4: fig. 26 1892
Phormidium tadzhikicumMelnikova image
Phormidium takyricum(Novichkova) O.N. Vinogradova Algologia 21: 75 2011
Phormidium tambi_('tambii')(Woronichin) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 406 1988
Phormidium tanganyikae(G.S. West) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 406 1988
Phormidium taylorii_('taylori')(Drouet & Strickland) K. Anagnostidis Preslia 73: 371 2001
Phormidium tenue(C. Agardh ex Gomont) Anagnostidis & Komárek image
Phormidium tenue(Kützing) Rabenhorst image
Phormidium tenueAnagnostidis & Komárek image
Phormidium tenueAnagnostidis & Komárek Arch. Hydrobiol. Suppl. 80: 406 1988
Phormidium tenue f. nonconstrictum_('non-constrictum')Emoto & Hirose Bot. Mag. Tokyo 56: 39, fig. 12:1 1942
Phormidium tenue f. nonconstrictum_('non-constrictum')Emoto & Hirosse image
Phormidium tenue f. vaginatum_('vaginata')Frémy image
Phormidium tenueGomont Ann. Sci. Nat. Bot., ser. 7, 16: 169 1892
Phormidium tenue var. chlorinum_('chlorina')Playfair image
Phormidium tenue var. granuliferumJ. Copeland Ann. N.Y. Acad. Sci. 36: 178, fig. 62 1936
Phormidium tenue var. marinumGardner image
Phormidium tenue var. marinumN.L. Gardner N.Y. Acad. Sci., Sci. Surv. Porto Rico & Virgin Is. 8: 282, pl. 2: fig. 7 1932
Phormidium tenue var. minus_('minor')Tiwari image
Phormidium tenue var. minus_('minor')Tiwari image
Phormidium tenuissimumWoronichin Trudy Leningradsk. Obshch. Estestvoisp. 60: 68 1930
Phormidium terebriforme(C. Agardh ex Gomont) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 406 1988
Phormidium tergestinum(Rabenhorst ex Gomont) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 406 1988
Phormidium thermaleDrouet image
Phormidium thermaleDrouet Publ. Field Mus. Nat. Hist., Bot. Ser 20: 138 pl. II: fig. 13 1942
Phormidium thermaleV. Vouk Jugoslav. Akad. Prir. Istraz\*v. Hrvatske i Slavonije 8: 7 1916
Phormidium thermarumNägeli ex Kützing image
Phormidium thermobiumK. Anagnostidis Preslia 73: 371, fig. 13 2001
Phormidium thermophilumElenkin Kamčat. Eksped. F.P. Rjabus\*vinskogo, Bot. Otd. 2: 171 1914
Phormidium thermophilumSkuja image
Phormidium thinodermaKützing image
Phormidium thwaitesiiI. Umezaki & M. Watanabe Jap. J. Phycol. 42: 196 1994
Phormidium tinctoriumKützing image
Phormidium tinctoriumKützing image
Phormidium tinctoriumKützing ex Gomont image
Phormidium tinctorium var. naegelianumKützing image
Phormidium toficola(Nägeli) Gomont image
Phormidium tortuosum(N.L. Gardner) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 406 1988
Phormidium treleasei f. breviarticulatumClaus Int. Rev. Hydrobiol. 46: 526, pl. II: fig. 15 1961
Phormidium treleasei f. breviarticulatum_('breviarticulata')Claus image
Phormidium treleaseiGomont Bull. Soc. Bot. France 46: 37 1899
Phormidium trichodesMeneghini, inval. image
Phormidium truncatumLemmermann Arch. Hydrobiol. u. Planktonk. 4: 189, no fig. 1908
Phormidium truncatum var. thermaleJ. Copeland Ann. N.Y. Acad. Sci. 36: 181, fig. 64 1936
Phormidium truncicolaS.L. Ghose J. Linn. Soc. Bot. 46: 338, pl. 31: fig. 3 1924
Phormidium tyrolenseKützing image
Phormidium ulrichii(Prát) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 406 1988
Phormidium umbilicatum(Nägeli) Gomont image
Phormidium uncinatum(C. Agardh) Gomont image
Phormidium uncinatumGomont ex Gomont image
Phormidium undosumCado image
Phormidium unigranulatum(Kiselev) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 406 1988
Phormidium usteri_('usterii')Schmidle image
Phormidium usteriiSchmidle Hedwigia 43: 414 1904
Phormidium valderiae f. majusHollerbach image
Phormidium valderianum f. circinatum_('circinata')Anagnostidis image
Phormidium valderianumGomont Ann. Sci. Nat. Bot., ser. 7, 16: 159 (=key), 167, pl. 4: fig. 20 1892
Phormidium valderianum var. cartilagineumJ. Copeland Ann. N.Y. Acad. Sci. 36: 180, fig. 63 1936
Phormidium valderianum var. longiarticulatumY.Y. Li image
Phormidium valderianum var. minusVasishta image
Phormidium valderianum var. tenueWoronichin image
Phormidium valderianum var. validumY.Y. Li image
Phormidium valderiumGomont image
Phormidium valesiacumKützing image
Phormidium variabile(Wille) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 406 1988
Phormidium variabile_('variabilis')M.T.P. Azevedo & C.L. Sant'Anna Crypt. Bot. 3: 212, figs. 4-9 1993
Phormidium varium var. constrictum_('constricta')Bongale image
Phormidium versicolorKützing image
Phormidium versicolorWartmann in Rabenhorst Fl. Eur. Alg. II: 117 1865
Phormidium vesiculosumJ. Copeland Ann. N.Y. Acad. Sci. 36: 172, fig. 60 1936
Phormidium violaceum(Wallroth ex Gomont) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 406 1988
Phormidium viride(Vaucher) Lemmermann image
Phormidium viscosumLemmermann image
Phormidium vulgareKützing Phyc. gen.: 193 1843
Phormidium vulgareKützing image
Phormidium vulgare var. chalybeaKützing image
Phormidium vulgare var. fuscum(Vaucher) Kützing image
Phormidium vulgare var. imberbeStizenberger in Rabenhorst, Alg. Sachs. Dec. 73/74: no. 729 1858 (Sept.)
Phormidium vulgare var. imberbeStizenberger ms. image
Phormidium vulgare var. leptodermum(Kützing) Kützing image
Phormidium vulgare var. luteum(C. Agardh) Kützing image
Phormidium vulgare var. luteum_('lutea')Kützing image
Phormidium vulgare var. myochroumKützing image
Phormidium vulgare var. myochroum_('myochroa')Kützing image
Phormidium vulgare var. publicum(Kützing) Kützing image
Phormidium vulgare var. purpurascensKützing image
Phormidium weedii(Tilden) J. Copeland image
Phormidium weissiiDrouet Publ. Field Mus. Nat. Hist., Bot. Ser. 20: 10: fig. 1 1939
Phormidium welwitschiiGrunow image
Phormidium westiiKufferath Ann. Crypt. Exot. 2: 46, fig. 24 1929
Phormidium willei(N.L. Gardner) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 406 1988
Phormidium woronichinii(Ponomarev) K. Anagnostidis Preslia 73: 371 2001
Phormidium woronichiniiAnissimova in Elenkin Monogr. Alg. Cyanophyc., Pars Spec. 2: 1467 1949
Phormidium woronichiniiDe Toni f. Not. nomencl. alg. 1: 7 1934
Phormidium yonedae(I. Umezaki) I. Umezaki & M. Watanabe Jap. J. Phycol. 42: 196 1994
Phormidium yuhuense(Yoneda) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 406 1988
Phormidium yuichiiI. Umezaki & M. Watanabe Jap. J. Phycol. 42: 197 1994
PLECTONEMA [unranked] PSEUDOPHORMIDIUMForti in De Toni Syll. Alg. 5: 493 1907
PSEUDOPHORMIDIUM(Forti) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 409 1988
PSEUDOPHORMIDIUMForti in De Toni Syll. Alg. 5: 493 1907
Pseudophormidium africanum(O. Borge) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 409 1988
Pseudophormidium americanumO. Strunecky & L. Raabova in Strunecky et al. FEMS Microbiology Ecology 96{3}: 15, fig. 7H-M, 9G 2019
Pseudophormidium batrachosperma_('batrachospermi')(Starmach) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 409 1988
Pseudophormidium battersii(Gomont) K. Anagnostidis Preslia 73: 370 2001
Pseudophormidium edaphicum(Elenkin) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 409 1988
Pseudophormidium flexuosum(N.L. Gardner) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 409 1988
Pseudophormidium fortii(Frémy) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 409 1988
Pseudophormidium golenkinianum(Gomont) K. Anagnostidis Preslia 73: 370 2001
Pseudophormidium hansgirgii_('hansgirgi')(Schmidle) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 410 1988
Pseudophormidium hollerbachianum(Elenkin) K. Anagnostidis Preslia 73: 370 2001
Pseudophormidium indicum(Dixit) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 410 1988
Pseudophormidium mucicola(G.S. An) K. Anagnostidis Preslia 73: 370 2001
Pseudophormidium pauciramosum(Anissimova) K. Anagnostidis Preslia 73: 370 2001
Pseudophormidium phormidioides(Hansgirg ex Forti) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 410 1988
Pseudophormidium purpureum(Gomont) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 410 1988
Pseudophormidium radiosum(Gomont) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 410 1988
Pseudophormidium rhenanum(Schmidle) K. Anagnostidis Preslia 73: 370 2001
Pseudophormidium spelaeoides(C\*vado) K. Anagnostidis Preslia 73: 370 2001
Pseudophormidium tatricum(Starmach) K. Anagnostidis Preslia 73: 370 2001
Pseudophormidium tauricum(Woronichin) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 410 1988
Pseudophormidium tenue(Thuret ex Gomont) K. Anagnostidis & J. Komárek Arch. Hydrobiol. Suppl. 80 (Algol. Stud. 50-53): 410 1988
Pseudophormidium viride_('viridis')(G.H. Schwabe) M.T.P. Azevedo Arch. Hydrobiol. Suppl. 92 (Algol. Stud. 64): 513 1991
Symploca phormidium(Kützing) Thuret image