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
Synedra ulna var. crassaØstrup Danske Diat.: 183, pl. V: fig. 111 1910
Cosmarium incrassatum(F.E. Fritsch & F. Rich) image
Conferva crassaC. Agardh Systema algarum: 99 1824
Halimeda incrassata f. lamourouxiiJ. Agardh Alg. Syst. 5: 86 1887
Halimeda incrassata f. ovataJ. Agardh Alg. Syst. 5: 86 1887
Chaetophora endiviifolia var. crassaC. Agardh image
Champia tasmanica var. incrassataJ.G. Agardh image
Coeloclonium incrassatumJ. Agardh image
Dasya coccinea var. crassa(J. Agardh) J. Agardh image
Dasya crassaJ. Agardh image
Farlowia crassaJ. Agardh image
Halimeda incrassata var. ovataJ. Agardh image
Halymenia filiformis var. incrassata(Mueller) C. Agardh image
Lyngbya crassaJ. Agardh image
Sphacelaria crassaC. Agardh image
Sphacelaria crassaC. Agardh image
Oscillatoria crassa(C.B. Rao) K. Anagnostidis Preslia 73: 372 2001
Polysiphonia intricata var. crassaArdissone image
Striaria attenuata var. crassaArdissone image
Jania micrarthrodia var. crassa(Lamouroux) Areschoug ex H.W. Johansen in Abbott & Hollenberg Mar. Alg. California: 419 1976
Tetmemorus granulatus f. crassus_('crassa')Auclair image
Lyngbya epiphytica var. crassaM.T.P. Azevedo & C.L. Sant'Anna Crypt. Bot. 3: 207, figs. 10-11 1993
Gracilaria crassa f. conglomerataBørgesen Biol. Meddel. Kongel. Danske Vidensk. Selsk. 18{19}: 34, figs. 17, 18 1952
Halimeda incrassata var. simulans(Howe) Børgesen Bot. Tidsskr. 31: 144 1911
Gracilaria crassa f. conglomerataBørgesen image
Peridinium oblongum f. crassaA. Böhm image
Peridinium oceanicum var. crassaA. Böhm image
Chromulina crassaBachmann image
Ethelia crassaD.L. Ballantine, H. Ruíz, Lozada-Troche, & J.N. Norris Botanica Marina 60: 647, figs. 11-18 2017
Halimeda incrassata f. rotundaBarton Siboga-Exped. Monogr. 60: 28, pl. IV: fig. 45 1901
Halimeda incrassata f. monile_('monilis')(Ellis & Solander) Barton Siboga-Exped. 60: 27 1901
Halimeda incrassata f. lamourouxii(J. Agardh) Barton image
Halimeda incrassata f. pusillaBarton image
Halimeda incrassata f. tripartitaBarton image
Dumontia incrassata var. crispataBatters image
Coleochaete orbicularis f. crassaY. Bharadwaja image
Scytonema hofmanii var. crassaBharadwaja image
Spirogyra fuellebornii f. crassaBhashyakarla Rao image
Spirogyra spreeiana var. crassaBhashyakarla Rao image
Zygnema cylindrosporum var. crassum_('crassa')Bhashyakarla Rao image
Conferva crassa var. chalybaeaBiasoletto image
Cylindrocystis crassa var. itirapinensis_(`itirapinense')C.E.M. Bicudo Nova Hedwigia 17: 440, pl. 116(4): figs. 17-20 1969
Cylindrocystis crassa var. itirapinensis_('itirapinense')C. Bicudo image
Arnoldiella crassa(W.E. Hoffmann & J.E. Tilden) C. Boedeker in C. Boedeker et al. J. Phycol. 48: 821 2012
Halimeda incrassata f. cylindricaBoergesen image
Halimeda incrassata f. gracilisBoergesen image
Halimeda incrassata f. robustaBoergesen image
Halimeda incrassata var. simulans(Howe) Boergesen image
Scenedesmus incrassatulusBohlin Bih. K. Svenska Vet.-Akad. Handl. 23(Afd. III, 7): 24, pl. I: figs. 45-51 1897
Grammita peucedanoides var. incrassataBonnemaison image
Gelidiella incrassataG.H. Boo & L. Le Gall in G.H. Boo et al. Cryptogamie, Algologie 36: 234, figs. 3-14 2015
Cosmarium crassangulatumBorge image
Cosmarium cymatopleurum var. incrassatum_('incrassata')Borge image
Conferva incrassataBory image
Conferva incrassataBosc image
Crassapontosphaera jonesii_(`jonesi')J.E. Boudreaux & W.W. Hay Rev. Espan\*~. Micropaleontol. 1: 273, pl. V: figs. 14-19 1969
CRASSAPONTOSPHAERABoudreaux & Hay image
Crassapontosphaera jonesii_('jonesi')J.E. Boudreaux & W.W. Hay image
Cosmarium pseudoincrassatumP. Bourrelly & A. Couté Amazoniana 7: 248 1982
Cosmarium pseudoincrassatum var. brasiliense(K. Förster) P. Bourrelly & A. Couté Amazoniana 7: 248 1982
Cosmarium norimbergense var. incrassatumP. Bourrelly & A. Couté Biblioth. Phycol. 86: 81, 191, pl. XXVIII: fig. 13 1991
Staurodesmus curvirostris var. incrassatus_(`incrassatum')P. Bourrelly & A. Couté Biblioth. Phycol. 86: 122, 195, pl. XLIII: fig. 5 1991
Staurastrum prionotum var. incrassatumP. Bourrelly & A. Couté Biblioth. Phycol. 86: 154, 199, pl. LVII: fig. 7 1991
Cosmarium pseudoincrassatumP. Bourrelly & A. Couté image
Cosmarium pseudoincrassatum var. brasiliense(K. Förster) P. Bourrelly & A. Couté image
Anabaena volzii var. crassa(Rao) Bourrelly image
Cosmarium tjibenongense var. incrassatum_('incrassata')Bourrelly image
Cystodinium closterium var. crassaBourrelly image
Phacus polytrophos var. crassaBourrelly image
Heterocarpella crassaBrébisson image
Chlamydomonas incrassataR. Brabez image
Oscillatoria fonticola var. subcrassaBrabez image
Nitella flexilis var. crassaBraun image
Navicula major var. crassaBrébisson in Rabenhorst Alg. Sachs. Dec. 69/70: no. 683 1858 (May)
Cymbella incrassata(Kützing) Brebisson & Godey image
Pinnularia major var. crassaL.A. Brebisson image
Euastrum crassangulatumF.C.E. Børgesen image
Triceratium incrassatumCastracane image
Oocystis incrassata var. oculusCedergren image
Spongiochloris incrassataChantanachat & H.C. Bold Univ. Texas Publ. 6218: 27, figs. 29-35, 93-96 1962
Spongiochloris incrassataChantanachat & Bold image
Ulva crassaV.J. Chapman Journal of the Linnean Society of London, Botany 55: 391, text-fig. 35-I; pl. 25 1956
Ulva crassaV.J. Chapman image
Oocystis crassa var. nodulosa(West & West) Chodat image
Oocystis crassa var. asymmetrica(West & West) Chodat image
Chlamydomonas crassaH.R. Christen image
Amphora crassa var. degenerataP.T. Cleve image
Amphora crassa var. elongataP.T. Cleve image
Amphora crassa var. interlineata(Grove & G. Sturt) P.T. Cleve image
Amphora crassa var. modestaP.T. Cleve image
Amphora crassa var. seychellensisP.T. Cleve image
Amphora crassa var. soelswigiensis(P.C.M. Petit) P.T. Cleve image
Amphora crassa var. spuriaP.T. Cleve image
Cymbella aspera var. crassa(Grunow) Cleve image
Cymbella cistula var. crassa(Grunow) Cleve-Euler image
Nitzschia tryblionella var. crassa(Pantocsek) Cleve-Euler image
Micrasterias robusta var. crassa(W. West & G.S. West) P.F.M. Coesel & A. Van Geest Plant Ecology and Evolution 147: 395 2014
Staurastrum crassangulatumP.F.M. Coesel Syst. Geogr. Pl. 77: 10 2007
Chaetophora incrassata f. draparnaldioides(Wittrock & Nordstedt) F.S. Collins image
Hormiscia crassa(Rosenvinge) Collins image
Hormiscia incrassata(Kjellman) Collins image
Corallina crassa(Lamouroux) Collins in Collins, Holden, & Setchell Phycoth. Bor.-Amer.: 500 1898
Actinastrum aciculare f. crassapicatum(G.E. Huber-Pestalozzi) P. Compère image
Degagnya crassa(Kützing) Conard image
Audouinella incrassata(Ercegović) F. Conde Poyales Cryptog.: Algol. 12: 166 1991
Audouinella incrassata(A. Ercegovic) F. Conde Poyales image
Oscillatoria tenuis var. subcrassaConrad image
Cylindrocystis crassa var. skujaeH. Croasdale in H. Croasdale & E.A. Flint Fl. New Zealand: Desmids 1: 35, pl. 1: fig. 24 1986
Alsidium tenuissimum f. crassum_('crassa')Crouan fr. image
Lyngbya crassaCrouan fr. image
Lyngbya major var. crassa(Crouan fr.) Crouan fr. image
Chondriopsis tenuissima f. crassa(Crouan fr.) Croun fr. image
Spirotaenia obscura var. crassa_('crassum')J.A. Cushman image
Spirogyra incrassataCzurda image
Valeriella incrassata(Chantanachat & H.C. Bold) T. Darienko & T. Pröschold Notulae Algarum 251: 3 2022
Lyngbya cryptovaginata var. crassaV. Das & Mitra image
Cylindrocystis crassaDe Bary image
Heteromita crassaDe Fromentel image
Heterosiphonia coccinea f. crassa(J. Agardh) De Toni image
Hormiscia crassa(Kützing) De Toni image
Hormiscia crassa var. naegeliana(Kützing) De Toni image
Mougeotia crassa(Wolle) De Toni image
Fortiea crassa(G.S. West) De Toni f. image
Scenedesmus incrassatulus var. alternansDedusenko image
Characiopsis pyriformis f. incrassata(Pascher) Dedusenko-Shchegoleva image
Phacus alatus var. incrassataDeflandre image
Trachelomonas crassata var. oblonga(Playfair) Deflandre ex R.A. Townsend & J.M. Huisman Notulae algarum 203: 24 2021
Trachelomonas crassata var. rotunda(Playfair) Deflandre ex R.A. Townsend & J.M. Huisman Notulae algarum 203: 24 2021
Codium adhaerens var. incrassatumDellow image
Arthrospira gomontiana var. crassa(A.B. Gupta) T.V. Desikachary Cyanophyta: 192 1959
Myriodactylon incrassatum(Hudson) Desvaux image
Liagora crassaDickie J. Linn. Soc. [London], Bot. 14: 195 1874
Liagora crassaG. Dickie image
Monas crassa(F. Dujardin) K.M. Diesing image
Oscillatoria subbrevis f. crassaS. Dixit Proc. Indian Acad. Sci., Sect. B, 3: 103, no fig. 1936
Aulosira implexa var. crassaDixit image
Oscillatoria subbrevis f. crassaDixit image
Chara crassaDollfus & Fritel image
Cosmarium crassangulatum var. champesianumDucellier Bull. Soc. Bot. Genève, ser. 2, 10: 13, fig. 2 1918
Cosmarium venustum f. incrassatum_('incrassata')Ducellier image
Halimeda incrassata f. tridentataDuchass. mscr. image
Bacillaria incrassataK.E. Eichwald image
Scinaia incrassataEiseman image
Corallina incrassataEllis & Solander image
Corallina incrassataEllis Philosophical Transactions [Royal Society of London] 57: 408, pl. XVII: figs. 20-27 1768
Acrochaetium incrassatumA. Ercegovic image
Cystoseira spicata subsp. crassaErcegovic image
Rivularia atra f. inaequicrassaErcegovic image
Acrochaetium incrassatumErcegović Acta Adriat. 8(8): 72, fig. 23 1957
Corallina crassaEsper image
Chlamydomonas noctigama var. crassaH. Ettl image
Chlorangium incrassatum(H.L. Skuja) H. Ettl image
Chloromonas incrassata(Pascher) Ettl image
Euastrum croasdaleae var. incrassatumK. Förster & F. Eckert image
Cosmarium contractum var. incrassatumFörster image
Cosmarium incrassatum var. amazonenseFörster image
Cosmarium incrassatum var. brasilienseFörster image
Cosmarium pseudooctangulare var. incrassatumFörster image
Cosmarium pseudorectangulare var. incrassatumFörster image
Cylindrocystis crassa f. minorFörster image
Xanthidium antilopaeum var. incrassatum(R.L. Grönblad) K. Förster image
Spirogyra arcta f. incrassataFilarszky image
Cosmarium incrassatum var. brasilienseK. Förster Amazoniana 2: 51, pl. 18: figs. 1, 2 1969
Cosmarium contractum var. incrassatumK. Förster Mitt. Naturw. Arbeitskr. Kempten 7: 48, pl. 1: fig. 11 1963
Cymbella incrassataFoged image
Asterocytis ramosa var. crassa(Hansgirg) Forti in De Toni Syll. Alg. 5: 690 1907
Lithophyllum incrassatum(Foslie) Foslie K. Norske Vid. Selsk. Skr. 1909{2}: 18 1909
Lithophyllum incrustans f. incrassatum_('incrassata')Foslie K. Norske Vid. Selsk. Skr. 1899{5}: 29 1900
Lithothamnion gibbosum f. crassum_('crassa')Foslie Trans. Linn. Soc. London, Bot. 7: 100 1907
Lithophyllum racemus f. crassum_('crassa')(Philippi) Foslie Kongel. Norske Vidensks. Selsk. Skr. [Trondheim] 1898{3}: 9 1898
Goniolithon tortuosum f. crassum_('crassa')(Rosanoff) Foslie image
Lithophyllum fasciculatum f. incrassatum_('incrassata')(Foslie) Foslie image
Lithophyllum tortuosum f. crassum_('crassa')(Rosanoff) Foslie image
Lithothamnion fasciculatum f. incrassatum_('incrassata')Foslie image
Lithothamnion heterocladum f. crassum_('crassa')Foslie image
Lithothamnion incrassatumFoslie image
Chlamydomonadopsis incrassata(Skuja) Fott image
Cosmarium pseudopachydermum var. incrassatum_(`incrassata')F.E. Fritsch & M.F. Rich Trans. Roy. Soc. South Africa 25: 193, fig. 16 A, B 1937
Chlorococcum humicola var. incrassataFritsch & John image
Cosmarium pseudopachydermum var. incrassatumF.E. Fritsch & Rich image
Sphaeroplea africana var. crassaFritsch image
Astasia crassaL.E.G. Fromentel image
Oocystis gigas var. crassaGaidukov image
Oocystis gigas var. crassaGaidukov image
Cylindrocystis crassa f. simplexGain image
Staurosira crassa(Metzeltin & Lange-Bertalot) F. García-Rodriguez, H. Lange-Bertalot, & D. Metzeltin in D. Metzeltin et al. Iconogr. Diatomol. 15: 270 2005
Chaetophora incrassata f. clavataGauthier-Lièvre image
Chaetophora incrassata f. crassaGauthier-Lièvre image
Chaetophora incrassata f. draparnaldioidesGauthier-Lièvre image
Chaetophora incrassata f. incrustansGauthier-Lièvre image
Chaetophora incrassata f. linearisGauthier-Lièvre image
Staurastrum punctulatum f. crassaF. Gay image
Synechocystis crassa var. maiorGeitler Arch. Hydrobiol. Suppl. 12: 623, no fig. 1933
Dermocarpa incrassata(Lemmermann) Geitler image
Dermocarpa incrassata(Lemmermann) Geitler image
Leptobasis crassa(W. West) Geitler image
Chloromonas crassa(Christen) Gerloff & Ettl image
Anabaena circinalis var. crassaGhose image
Aphanocapsa crassaGhose image
Amphora incrassataM.H. Giffen image
Aphroporella crassaGnilovskaya image
Dichothrix baueriana var. crassaGodward image
Bulbochaete monile var. crassaGonzalves & Sonnad image
Involucrana crassa(J. Hooker & Harvey) E. Gordon Austral. J. Bot., Suppl. Ser. 4: 105 1972
Involucrana crassa(Hooker & Harvey) Gordon image
Chondria incrassata(J. Agardh) Gordon-Mills & Womersley image
Closterium didymotocum f. crassaR.L. Grönblad image
Closterium ehrenbergii f. percrassaR.L. Grönblad image
Staurastrum novae-semliae var. crassangulatumR.L. Grönblad image
Xanthidium antilopaeum f. incrassatum_('incrassata')R.L. Grönblad image
Aclistochara crassa(Dollfus & Fritel) Grambast & Grambast image
Brachychara crassa(Dollfus & Fritel) L. Grambast & N. Grambast image
Navicula superba var. crassa(Østrup) Gran image
Delesseria sinuosa var. incrassata(Turner) S.F. Gray image
Sphaerococcus laceratus var. incrassatusS.F. Gray image
Amphora crassaW. Gregory image
Navicula crassaGregory image
Chondria purpurascens var. incrassata(Müller) Greville image
Cymbella gastroides var. crassaGrunow Beitr. Paläont. Österr.-Ung. 2: 141, pl. XXIX: fig. 28 1882
Amphora crassa var. campechianaA. Grunow image
Amphora crassa var. incurvaA. Grunow image
Amphora crassa var. punctataA. Grunow image
Eunotia parallela var. crassaA. Grunow image
Spirogyra fuellebornii var. crassaM. Gupta & D.C. Pandey image
Spirulina gomontiana var. crassaA.B. Gupta J. Res. Dayanand Anglo-Vedic Coll., Kanpur 3{1}: 78 1956
CRASSAC.F.D. Gurgel, J.N. Norris & S. Fredericq Phytotaxa 374: 10 2018
Crassa cornea(J. Agardh) C.F.D. Gurgel, J.N. Norris & S. Fredericq Phytotaxa 374: 10 2018
Crassa changii(B.M. Xia & I.A. Abbott) C.F.D. Gurgel, J.N. Norris & S. Fredericq Phytotaxa 374: 10 2018
Crassa caudata(J. Agardh) C.F.D. Gurgel, J.N. Norris & S. Fredericq Phytotaxa 374: 10 2018
Crassa crassissima(P. Crouan & H. Crouan) C.F.D. Gurgel, J.N. Norris & S. Fredericq Phytotaxa 374: 10 2018
Crassa truncata(G.T. Kraft) C.F.D. Gurgel, J.N. Norris & S. Fredericq Phytotaxa 374: 11 2018
Crassa usneoides(C. Agardh) C.F.D. Gurgel, J.N. Norris & S. Fredericq Phytotaxa 374: 11 2018
Crassa birdiae(E. Plastino & E.C. Oliveira) C.F.D. Gurgel, J.N. Norris & S. Fredericq Phytotaxa 374: 11 2018
Crassa crouaniorum(G.M. Lyra, J.C.M. Nunes & C.C. Davis) C.F.D. Gurgel, J.N. Norris & S. Fredericq Phytotaxa 374: 11 2018
Crassa secundata(Harvey) C.F.D. Gurgel, J.N. Norris & S. Fredericq Phytotaxa 374: 11 2018
Crassa punctata(Okamura) C.F.D. Gurgel, J.N. Norris & S. Fredericq Phytotaxa 374: 11 2018
Crassa firma(C.F. Chang & B.M. Xia) C.F.D. Gurgel, J.N. Norris & S. Fredericq Phytotaxa 374: 11 2018
Arthrodesmus convergens var. incrassatusGutwiński Bot. Centralbl. 43: 71 1890
Closterium incrassatumR. Gutwinski image
Closterium incrassatumR. Gutwinski image
Closterium pritchardianum f. crassaR. Gutwinski image
Closterium pritchardianum f. crassaR. Gutwinski image
Cosmarium retusiforme var. incrassatumGutwinski image
Cosmarium thwaitesii var. subincrassatumGutwinski image
Dysphinctium thwaitesii var. subincrassatum(Gutwinski) Gutwinski image
Tetracyclus emarginatus var. crassus_('crassa')Héribaud & M. Peragallo image
Lyngbya thermalis f. crassaHalasz image
Buthotrephis gracilis var. crassaJ. Hall image
Oedogonium incrassatumHallas image
Spirogyra crassa [subsp.] genuina(Kirchner) Hansgirg image
Spirogyra crassa [subsp.] maxima(Hassall) Hansgirg image
Spirogyra crassa var. inaequalis(Wolle) Hansgirg image
Spirogyra crassa var. megaspora(Lagerheim) Hansgirg image
Oocystis solitaria var. crassa(Wittrock) Hansgirg image
Trochiscia crassaHansgirg image
Ulothrix parietina var. crassa(Kützing) Hansgirg image
Tenarea undulosa var. crassa(S.M. Rozanov) P.A. Hariot image
Halimeda incrassata var. monile_('monilis')(Ellis & Solander) Harvey Ner. bor.-amer. 3: 24 1858
Gracilaria crassaHarvey image
Gracilaria crassaHarvey image
Halimeda incrassata var. monile_('monilis')(Ell. & Sol.) Harvey image
Rhodymenia bifida var. incrassataHarvey image
Gracilaria crassaHarvey ex J. Agardh Sp. Alg. 3{1}: 417, no fig. 1876
Vesiculifera crassaHassall image
Lithophyllum cristatum f. crassum_('crassa')(Rosanoff) Hauck image
Chaetophora incrassata(Hudson) Hazen image
Xanthidium tirthalliense f. incrassatumG.R. Hegde & S.W. Isaacs The Journal of the Bombay Natural History Society 86: 90, fig. 4 1989
Cosmarium crassangulatum f. granulatumHegde image
Amphora crassa var. oceanicaH. Heiden image
Rhizosolenia crassaV. Hensen image
Stichospora crassa(Philippi) Heydrich Ber. Deutsch. Bot. Ges. 19: 274 1901
Crodelia incrustans f. crassa(Rosanoff) Heydrich image
Lithothamnion corallioides f. crassum_('crassa')Heydrich image
Lithothamnion rubrum f. crassum_('crassa')(Heydrich) Heydrich image
Paraspora fruticulosa f. crassaHeydrich image
Stichospora crassa(Philippi) Heydrich image
Kephyriopsis crassaHilliard image
Romeria crassaF. Hindák Preslia 60: 299, fig. 5 1988
Koliella crassaF. Hindák Preslia 56: 10, fig. 5 1984
Pseudanabaena mucicola f. crassa(Skuja) Hindak image
Romeria crassaF. Hindak image
Cosmarium incrassatoplicatumHinode image
Eunotia veneris var. crassaM. Hirano image
Cylindrocystis crassa f. tenuisHodgetts image
Basicladia crassaW.E. Hoffmann & J.E. Tilden Bot. Gaz. 89: 382, figs. 2-22 1930
Herposiphonia crassaHollenberg Pacific Sci. 22: 539, figs. 12, 13 1968
Wrangelia crassaJ. Hooker & Harvey London J. Bot. 6: 410 1847
Wrangelia crassaHooker f. & Harvey image
Brevichara crassa(Dollfus & Fritel) Horn af Rantzien image
Chodatella ciliata f. crassaHortobagyi image
Dudresnaya crassaM.A. Howe image
Actinastrum schroeteri var. crassapicatum_('crassapicata')G.E. Huber-Pestalozzi image
Cylindrocystis crassa f. minorHuber-Pestalozzi image
Scenedesmus ecornis f. crassapicatusHuber-Pestalozzi image
Ulva incrassataW. Hudson image
Botryocladia crassaJ.M. Huisman Algae of Australia: Marine Benthic Algae of North-western Australia. 2: 332, fig. 96 2018
Chaetophora incrassata f. draparnaldioidesHurter image
Achnanthes crassaHustedt Arch. Hydrobiol. Suppl. 15: 194, pl. XIII: figs. 37-40 1937
Actinocyclus ehrenbergii var. crassus_('crassa')(W. Smith) Hustedt Rabenhorst's Krypt.-Fl. Deutschland 7{1}: 529 1929
Rhodymenia marginicrassaIn Kyu Lee image
Acrothrix pacifica f. crassaInagaki image
Cosmarium perforatum var. crassangulatumInsam & Krieger image
Cosmarium speciosum var. incrassatumInsam & Krieger image
Closterium baillyanum f. crassum_('crassa')T.J.C. Irenee-Marie image
Corallina crassaIshijima image
Oedogonium incrassatum var. tenerrimumIslam Nova Hedwigia 27: 924, pl. 5: figs. 42-43 1976
Campylaephora crassa f. australisItono image
Amphora crassa var. interruptaJ.-M. Lin & T.G. Chin Universitatis Amoiensis, Acta Scientiarum Naturalium 19(4): 109, fig. C 1980
Lithothamnion incrassatum(Foslie) Jadin Ann. Cryptog. Exot. 7: 171 1935
Cosmarium rectangulare var. incrassatumJao image
Scytonema incrassatumJao image
Amphora crassa var. gemmataA. Jurilj image
Chaetomorpha crassa(C. Agardh) Kützing Phycol. germ. 204 1845
Gymnophlaea incrassataKützing Phycol. General.: 390 1843
Spongites crassus_('crassa')(Philippi) Kützing Tab. Phycol. 19: 35 1869
Ballia crassa(C. Agardh) F.T. Kützing image
Chaetomorpha crassa(C. Agardh) Kützing image
Chaetomorpha crassa(C. Agardh) Kützing image
Chaetophora endiviifolia var. crassaKützing image
Chara fragilis var. crassaKützing image
Chroolepus aureus var. incrassatusKützing image
Dumontia filiformis var. incrassata(Müller) Kützing image
Frustulia incrassataKützing image
Griffithsia crassaKützing image
Gymnophlaea incrassataKützing image
Mastocarpus incrassatusKützing image
Palmogloea crassaKützing image
Schizosiphon scopulorum var. crassaF.T. Kützing image
Spirogyra crassa(Kützing) Kützing image
Spongites crassus_('crassa')(Philippi) Kützing image
Spyridia crassaKützing image
Ulothrix crassa(Kützing) Kützing image
Ulothrix crassaKützing image
Ulothrix crassa var. naegelianaKützing image
Anabaena variabilisKützing crassa Woronichin image
Cosmarium pseudovariolatum var. incrassatum(A.M. Scott & Grönblad) Y. Kanetsuna Phycol. Res. 52: 163 2004
Lepocinclis tripteris var. crassa(Swirenko) D. Kapustin Algologia 21: 140 2011
Ceratium flagelliferum var. crassum_('crassa')G. Karsten Wiss. Ergeb. Deutsch. Tiefsee-Exped. 1898-1899, 2{2}: 406, pl. XLIX: fig. 25 1907
Ceratium macroceros var. crassum_('crassa')G. Karsten Wiss. Ergeb. Deutsch. Tiefsee-Exped. 1898-1899, 2{2}: 411, pl. XLIX: fig. 27a,c,e 1907
Ceratium flagelliferum var. crassum_('crassa')Karsten image
Ceratium macroceros var. crassum_('crassa')Karsten image
Ceratium tripos f. crassum_('crassa')Karsten image
Porphyra amplissima f. crassaS. Kawabata Sci. Pap. Inst. Algol. Res. Fac. Sci. Hokkaido Imp. Univ. 1: 208 1936
Eudesme pseudocrassaH. Kawai, K. Takeuchi & T. Hanyuda in Kawai et al., European Journal of Phycology 58: 473, figs. 10-14 2023
Saundersella crassaH. Kawai, Yuki Watanabe & T. Hanyuda Phycologia 60: 280, figs. 3, 6-11 2021
Leptothrix crassaKholodnyi image
Scenedesmus incrassatulus var. reniformisKhristyuk image
Pyropia crassa(Ueda) N. Kikuchi & M. Miyata in J.E. Sutherland et al. J. Phycol. 47: 1143 2011
Spirogyra crassa var. genuinaKirchner image
Spirogyra crassa var. heeriana(Nägeli ex Kützing) Kirchner image
Ectocarpus confervoides f. crassus_(`crassa')Kjellman Handb. Skand. Hafsalgfl.: 77 1890
Ectocarpus confervoides f. crassus_('crassa')Kjellman image
Ulva crassaKjellman image
Ulva crassaKjellman image
Urospora incrassataF.R. Kjellman image
Anabaena macrospora var. crassaKlebahn image
Chaetosphaeridium globosum f. incrassatum_('incrassata')Klebahn image
Tauya basicrassaN.G. Klochkova & T.N. Krupnova Algologiya 14: 89, fig. 2 2004
Goniodoma crassum_('crassa')Kofoid & Michener image
Chamaecalyx incrassatus(Lemmermann) J. Komárek & K. Anagnostidis Arch. Hydrobiol. Suppl. 73 (Alg. Stud. 43): 199 1986
Nodularia crassa(Woronichin) J. Komárek, M. Hübel, H. Hübel, & J. S\*vmarda Arch. Hydrobiol. Suppl. 96 (Algol. Stud. 68): 19 1993
Anabaena crassa(Lemmermann) J. Komárková-Legnerová & G. Cronberg Arch. Hydrobiol. Suppl. 95 (Algol. Stud. 67): 24 1992
Planktolyngbya crassaJ. Komárková-Legnerová & G. Cronberg Arch. Hydrobiol. Suppl. 95 (Algol. Stud. 67): 22, fig. 1a, pl. 1 1992
Anabaena crassa(Lemmermann) J. Komárková-Legnerová & G. Cronberg image
Nodularia crassa(Voronikhin) J. Komarek, M. Hübel, H. Hübel, & J. Smarda image
Planktolyngbya crassaJ. Komarkova-Legnerova & G. Cronberg image
Proaulopora crassaKorde image
Chloromonas incrassataKorschikoff image
Chlorospira crassaKorshikov Uchen. Zap. Gor'kovsk. Gosud. Univ. 9: 119, 126, fig. 20 1939
Characiochloris crassaKorshikov image
Fischerella muscicola f. crassaKossinskaja image
Cymbella crassa(Grunow) K. Krammer Diatoms of Europe 3: 122 2002
Cosmarium crassangulatum var. ellipticum(Grönblad) Krieger & Gerloff Gatt. Cosmarium: 32 1962
Cosmarium incrassatum(F.E. Fritsch & M.F. Rich) W. Krieger & J. Gerloff Gattung Cosmarium: 19 1962
Cosmarium incrassatum var. schmidlei(Printz) Krieger & Gerloff image
Euastrum crassangulatum var. glabrumW. Krieger Rabenhorst's Krypt.-Fl. Deutschl., 2.Aufl., 13(1,4): 547, pl. 74: figs. 21, 22 1937
Cosmarium crassangulatum var. triverrucosumKrieger image
Castagnea crassa(Suringar) Kuckuck image
Buryatia crassaM.S. Kulikovskiy, D. Metzeltin, & H. Lange-Bertalot in Kulikovskiy et al. Iconogr. Diatomol. 23: 52, pl. 92: fig. 26 2012
Arthrodia crassa(Rabenhorst) Kuntze Rev. Gen. Pl. 2: 883 1891
Conjugata crassa(Kützing) Kuntze Rev. Gen. Pl. 2: 889 1891
Conjugata crassa(Kützing) Kuntze image
Helierella crassa(Brébisson) Kuntze image
Helierella incrassata(Nordstedt) Kuntze image
Opuntiodes incrassata_('incrassatum')(Ellis) O. Kuntze image
Palmaria crassa(Zanardini) O. Kuntze image
Prolifera crassa(Hassall) Kuntze image
Serpentinaria crassa(Wolle) Kuntze image
Tinocladia crassa(Suringar) Kylin Lunds Univ. A\*orsskr., N.F., Avd. 2, 36{9}: 34 1940
Euastrum crassangulatum var. carniolicumLütkemüller Verh. K. Zool.-Bot. Ges. Wien 50: 73, pl. I: figs. 20-22 1900
Euastrum crassangulatum var. carniolicumJ. Lütkemüller image
Euastrum crassangulatum var. biondulatumE.N. Lacoste in Lacoste et al. Darwiniana 27: 123, fig. 17 1986
Arthrodesmus incrassatusLagerheim image
Arthrodesmus incrassatus var. cycladatusLagerheim image
Kraftalia crassa(A.J.K. Millar & G.T. Kraft) L. Lagourgue & C. Payri J. Phycol. 57: 1465 2021
Aulosira bombayensis f. crassaLaloraya & Mitra image
Plectonema calothrichoides f. crassum_('crassa')Laloraya & Mitra image
Nostoc ellipsosporum var. crassum_('crassa')Laloraya image
Flabellaria incrassata(Ellis & Solander) Lamarck image
Halimeda incrassata(Ellis) Lamouroux Histoire des polypiers coralligènes flexibles, vulgairement nommés zoophytes: 307 1816
Jania crassaLamouroux Exposition méthodique des genres de l'ordre des Polypiers ...: 23, pl. 69: figs. 9, 10 1821
Dumontia incrassata(Müller) Lamouroux image
Halimeda incrassataLamouroux f. distorta Yamada image
Amphiroa crassaLamouroux in Quoy & Gaimard Voyage autour du monde ... exécuté sur les corvettes de S.M. l'Uranie et la Physicienne, pendant les années 1817, 1818, 1819 et 1820: 627 1824
Navicula reichardtiana var. crassaLange-Bertalot & G. Hofmann in Krammer & Lange-Bertalot in H. Ettl et al. (eds.) Süsswasserfl. Mitteleuropa 2{4}: pl. 68: figs. 16-19 1991
Navicula reichardtiana var. crassaLange-Bertalot & G. Hofmann in Lange-Bertalot Biblioth. Diatomol. 27: 133, pl. 47: figs. 4-10 1993
Achnanthes pusilla var. crassa(Hustedt) Lange-Bertalot & Ruppel image
Achnanthes ventralis var. crassa(C.W. Reimer) Lange-Bertalot in Lange-Bertalot & Krammer Biblioth. Diatomol. 18: 155 1989
Palmaria marginicrassaI.K. Lee J. Fac. Sci. Hokkaido Univ., Ser. V (Bot.), 11: 48, pl. II:D-E, test-figs. 18-22 1978
Anabaena spiroides var. crassaLemmermann Bot. Centralbl. 76: 155 1898
Microspora fontinalis var. crassaLemmermann Abh. Naturwiss. Ver. Bremen 14: 247 1897
Dermocarpella incrassataLemmermann Bot. Jahrb. 38: 350, pl. VI: figs. 10-14 1907
Glaucocystis nostochinearum var. incrassataLemmermann Arch. Hydrobiol. u. Planktonk. 4: 178, pl. V: fig. 4 1908
Oocystis naegelii var. incrassataLemmermann image
Dumontia filiformis var. incrassataLenormand image
Liagora crassaLevring Ark. Bot., ser. 2, 2: 502, figs. 32G,H, 34 1953
Liagora crassaLevring image
Sphaerospermopsis crassaX. Li & R. Li in Li et al. Phycologia 56: 149, figs. 1-7 2016
Tetraspora crassaLiebmann image
Tetraspora crassaLiebmann ex Kützing image
Pachymenia crassaLindauer image
Melobesia crassaLloyd Alg. Ouest France, Fasc. 16, no. 318 1860
Gastridium filiforme var. incrassatum(Müller) Lyngbye image
Eunotia pectinalis var. crassaO. Müller image
Ulva incrassataMüller image
Achnanthes subcrassaR. Maillard Cah. O.R.S.T.O.M., Sér. Hydrobiol. 12: 150, pl. I: fig. 14 1979
Achnanthes subcrassaR. Maillard ex H. Lange-Bertalot & A. Steindorf in Moser, Steindorf, & Lange-Bertalot Biblioth. Diatomol. 32: 41 1995
Penium incrassatumMaskell image
Penium incrassatum f. majus_('major')Maskell image
Penium incrassatum f. minus_('minor')Maskell image
Stephanocha polyactis var. crassa(D. Bukry) K. McCartney & R.W. Jordan in Jordan & McCartney Phytotaxa 201: 180 2015
Lithothamnion calcareum f. crassum_('crassa')(Philippi) Me. Lemoine Bull. Mus. Natl. Hist. Nat. [Paris] 15: 552 1909 [probably early 1910]
Tenarea tortuosa f. crassa(S.M. Rozanov) Me. Lemoine image
Cymatopleura solea var. crassaMeister image
Pinnularia crassaF. Meister image
Coccochloris crassa(Naccari) Meneghini image
Cosmarium circulare var. crassangulatumMessikommer image
Fragilaria crassaD. Metzeltin & H. Lange-Bertalot in H. Lange-Bertalot (ed.) Iconographia Diatomologica 5: 89, pl. 1: figs. 20-23; REM-pl. 2: fig. 1 1998
Rhipilia crassaA.J.K. Millar & G.T. Kraft Phycologia 40: 32, figs. 37-40, 53-58 2001
Rhipilia crassaMillar & Kraft in Coppejans & Prud'homme van Reine Blumea 34: 131 1989
Curdiea crassaA.J.K. Millar Austral. Syst. Bot. 3: 341, fig. 19 1990
Cosmarium turgidum f. crassum_('crassa')Milovanovic image
Zygnema atrocoeruleum var. crassaMisra image
Zygnema sphaericum f. crassum_('crassa')Misra image
Austropugetia crassaR.L. Moe in M.H. Hommersand, R.L. Moe, C.D. Amsler, & S. Fredericq Bot. Mar. 52: 524, figs. 3(lower right) 2009
Scenedesmus incrassatulus var. spinosusMosto image
Spirulina meneghiniana var. crassaD. Mukherjee image
Palmella crassaNaccari image
Campylaephora crassa f. borealisY. Nakamura Sci. Pap. Inst. Algol. Res., Hokkaido Univ. 3: 170 1950
Campylaephora crassa f. cymosaNakamura Sci. Pap. Inst. Algol. Res., Hokkaido Univ. 3{2}: 168, fig. 7 1950
Campylaephora crassa f. borealisNakamura image
Campylaephora crassa f. elongataNakamura image
Campylaephora crassa f. typicaNakamura image
Tetraporina crassaNaumova image
Tetraporina incrassataNaumova image
Ulvella aequicrassaR. Nielsen in Nielsen et al. Phycologia 52: 41, figs. 2-5 2013
Euastrum incrassatumC.F.O. Nordstedt image
Euastrum incrassatumC.F.O. Nordstedt image
Oocystis crassa var. minorNygaard image
Anabaena incrassataG. Nygaard in Berg & Nygaard K. Danske Vidensk. Selsk. Naturvidensk. og Math. Afd. 9.Raekke 1: 280, fig. 13, pl. V: fig. 11 1929
Stauroneis anceps f. crassaE.V. Oestrup image
Griffithsia coacta var. crassaOkamura Nippon kaiso\*^ shi [Descriptions of Japanese algae]: 719, no fig. 1936
Campylaephora crassa(Okamura) Okamura image
Eudesme crassa(Suringar) Okamura image
Polysiphonia crassaOkamura image
Hantzschia amphioxys f. crassaOtto Müller image
Rhopalodia gibberula f. crassaOtto Müller image
Gomphonema gracile var. crassum_('crassa')Pandey image
Scenedesmus incrassatulus var. robustus(Uherkovich) Pankow image
Eunotia crassaJ. Pantocsek & P. Greguss image
Synedra ulna var. crassaPantocsek Pozsyonyi Orvos-Termeszettudomanyi Egyesulet Kozlemenyei 23: 29, pl. II: fig. 48 1913
Amphora crassa var. euprepesJ. Pantocsek image
Amphora crassa var. minorJ. Pantocsek image
Epithemia cistula var. crassaJ. Pantocsek image
Epithemia crassaJ. Pantocsek image
Hantzschia crassaPantocsek image
Tryblionella debilis var. crassaPantocsek image
Zygnema vaginatum f. crassum_('crassa')Paruk. image
Bumilleriopsis incrassataPascher image
Characiopsis incrassataPascher image
Characiopsis pyriformis var. incrassataPascher image
Chlamydomonas incrassataA.A. Pascher image
Diachros incrassataA.A. Pascher image
Hippodonta crassaA. Pavlov, Z. Levkov, D.M. Williams & M. Edlund Phytotaxa 90: 22, figs. 276-290 2013
Navicula hennedyi var. crassaH. Peragallo & M. Peragallo Diatomées Marines de France: pl. XXV: fig. 4 (desc. on p. 139, 1899) 1898
Nitzschia lanceolata var. incrassataH. Peragallo & M. Peragallo Diatomées Marines de France: pl. LXXIII: fig. 22 (desc. on p. 285, 1901) 1900
Epithemia turgida var. crassaM. Peragallo & J. Heribaud image
Stauroneis phoenicenteron f. crassaM. Peragallo & J. Heribaud image
Amphora crassa var. antarcticaPeragallo image
Amphora virgata var. crassaM. Peragallo image
Hantzschia amphioxys var. crassaM. Peragallo image
Amphora farcimen var. crassaM. Peragallo in Peragallo & Peragallo Denkschr. K. Akad. Wiss. [Wien], Math.-Nat. Kl. 88: 9, pl. I: fig. 8 1911
Porphyra inaequicrassaL.P. Perestenko Vodorosli Zaliva Petra Velikogo: 29 (key), 31, 193, figs. 27, 28 1980
Acrosiphonia incurva f. crassaPerestenko image
Spirogyra crassa f. heeriana(Nägeli) Petit image
Staurodesmus convergens var. incrassatus(Gutwiński) O.A. Petlovany in P.M. Tsarenko et al. (eds.) Algae of Ukraine 4: 414 2015
Gigartina crassaPlante image
Anabaena oscillarioides var. crassaPlayfair image
Cosmarium incrassatumPlayfair image
Oocystis crassa var. elongataPlayfair image
Oocystis crassa var. granulosaPlayfair image
Oocystis crassa var. ostenfeldiiPlayfair image
Oocystis nodulosa var. crassaPlayfair image
Phacus incrassatus(Deflandre) Pochmann image
Spirogyra crassa f. crassoidea(Transeau) Poljansky image
Micrasterias laticeps var. crassaG.W. Prescott image
Bulbochaete crassaPringsheim image
Carinolithus superbus var. incrassatusPrins image
Chaetophora incrassata f. clavataPrintz image
Chaetophora incrassata f. crassaPrintz image
Chaetophora incrassata f. crystallophoraPrintz image
Chaetophora incrassata f. draparnaldioidesPrintz image
Chaetophora incrassata f. genuinaPrintz image
Chaetophora incrassata f. incrustansPrintz image
Chaetophora incrassata f. linearisPrintz image
Chaetophora incrassata f. polycladosPrintz image
Oocystis crassa f. majorPrintz image
Oocystis crassa var. marssonii(Lemmermann) Printz image
Binuclearia lauterbornii var. crassaA.I. Proshkina-Lavrenko & I.V. Makarova Vodor. Plankt. Kaspijsk. Morya: 262, fig. 77: 4, 5 1968
Hydrurus irregularis f. crassus_('crassa')Rabenhorst Alg. Sachs. Dec. 73/74: letterpress to nos. 721-739 1858 (Sept.)
Oscillaria ornata f. crassaRabenhorst Alg. Sachs. Dec. 77/78: no. 778 1858 (Oct.)
Mougeotia gotlandica var. crassaRandhawa image
Zygnemopsis minuta var. crassaRandhawa image
Oscillatoria ornata var. crassaC.B. Rao Proc. Indian Acad. Sci., sect B, 8: 165, fig. 2D 1938
Anabaena unispora var. crassaC.B. Rao image
Calothrix fusca var. crassaC.S. Rao image
Calothrix marchica var. crassaC.B. Rao image
Chroococcus minimus var. crassaC.S. Rao image
Gloeocapsa stegophila var. crassaC.B. Rao image
Cymbella microcephala var. crassaReimer image
Achnanthes sublaevis var. crassaC.W. Reimer in Patrick & Reimer Monogr. Acad. Nat. Sci. Philadelphia 13: 262, pl. 17: figs. 5, 6 1966
Stradneria limbicrassaReinhardt image
Sphacelaria tribuloides f. crassaReinke image
Cerasterias raphidioides var. incrassata_('incrassatum')Reinsch image
Entonema incrassatumReinsch image
Mastogloia aspera var. crassaM. Ricard Rev. Algol., ser. 2 11: 163, pl. 4: fig. 1 1974
Nemastoma dichotomum var. incrassatum(Kützing) C. Rodríguez-Prieto, M. Verlaque, & A. Vergés in C. Rodríguez-Prieto, A. Vergés, N. Sánchez, L. Polo, & M. Verlaque Bot. Mar. 47: 46 2004
Cosmarium granatum f. crassum_('crassa')Roll image
Urospora crassaJ.L.A.K. Rosenvinge image
Caloneis crassa(Gregory) R. Ross image
Euastrum crassangulatum var. conicumJ. Roubal image
Euastrum crassangulatum var. recte-granulatum_('recte granulatum')J. Roubal image
Delesseria crenata var. incrassata(Turner) Ruprecht image
Delesseria hypoglossum var. incrassata(Turner) Ruprecht image
Dumontia contorta var. incrassata(Müller) Ruprecht image
Oocystis crassa f. pakisRuttner image
Tetraedron trigonum f. crassum_('crassa')Ruttner image
Trachelomonas curta f. crassatiiferaT.A. Safonova image
Maslovichara crassaSaidakovsky image
Cladophora okadae f. crassa(Sakai) Sakai & Yoshida image
Cladophora minima f. crassaSakai image
Cosmarium exiguum var. incrassatum(A.M. Scott & Grönblad) M.A. Santos & C.W.N. Moura in Ramos et al. Notulae algarum 146: 2 2020
Thalassiodianthus incrassatusG.W. Saunders & G.T. Kraft in Saunders et al. Cryptogamie, Algologie 38: 92, figs. 11-20 2017
Sphacelaria tribuloides var. crassa(Reinke) Sauvageau image
Chaetomorpha crassa f. genuinaSchiffner image
Chaetomorpha crassa f. tenuiorSchiffner image
Rhizosolenia crassaA.F.W. Schimper image
Conferva amoena var. crassaSchmidle image
Microspora amoena var. crassaSchmidle image
Chaetophora incrassataSchousboe image
Conferva crassaSchousboe image
Platoma incrassatum_('incrassata')Schousboe image
Platoma incrassatum_('incrassata')Schousboe image
Nostoc muscorum f. crassum_('crassa')G.H. Schwabe Verh. Dt. Wiss. Verein, Santiago de Chile 3: 128, fig. 8 1936
Nostoc muscorum f. crassum_('crassa')Schwabe image
Cosmarium variolatum var. incrassatumA.M. Scott & Grönblad Acta Soc. Sci. Fenn., Ser. B, Opera Biol. 2{8}: 23, pl. I: figs. 21-23 1957
Cosmarium exiguum f. incrassatumA.M. Scott & Grönblad Acta Soc. Sci. Fenn., n.s. B, 2{8}: 17, pl. 8: figs. 9, 10 1957
Euastrum sublobatum var. incrassatumA.M. Scott & G.W. Prescott image
Arthrodesmus validus var. incrassatusScott & Grönblad image
Cosmarium exiguum f. incrassatumScott & Grönblad image
Cosmarium pachydermum var. incrassatumScott & Grönblad image
Cosmarium variolatum var. incrassatumScott & Grönblad image
Arthrodesmus arcuatus var. incrassatusScott & Prescott image
Arthrodesmus curvatus var. incrassatusScott & Prescott image
Arthrodesmus subulatus f. incrassatusScott & Prescott image
Cosmarium contractum var. incrassatumScott & Prescott image
Cosmarium crassangulatum f. truncatumScott & Prescott image
Cosmarium lundellii f. crassangulatumScott & Prescott image
Gigartina incrassata(Kützing) Setchell & Gardner image
Calothrix crustacea var. crassaS.M.F. Silva Hoehnea 18{1}: 115, figs. 35-37 1992
Codium incrassatumP.C. Silva ined. image
Oedogonium borisianum var. crassum_('crassa')R.N. Singh image
Oedogonium franklinianum f. crassum_('crassa')R.N. Singh image
Spirogyra verruculosa var. crassaR.N. Singh image
Lyrella hennedyi var. crassa(H. Peragallo & M. Peragallo) D.A. Siqueiros-Beltrones in Siqueiros-Beltrones et al. Notulae algarum 169: 1 2020
Devaleraea marginicrassa(I.K. Lee) A.V. Skriptsova & T.L. Kalita European J. Phycology 55: 270 2020
Characiochloris incrassataSkuja image
Oocystis incrassata(W. West & G. West) Skuja image
Peranemopsis crassaSkvortzov & Noda image
Hantzschia crassa var. jeniseyensisSkvortzov image
Pinnularia crassaB.V. Skvortzov image
Trachelomonas crassataB.V. Skvortzov image
Trachelomonas crassata var. collarisB.V. Skvortzov image
Trachelomonas crassata var. granulataB.V. Skvortzov image
Trachelomonas crassata var. hispidaB.V. Skvortzov image
Trachelomonas crassata var. hyalinaB.V. Skvortzov image
Trachelomonas crassata var. ussuriensisB.V. Skvortzov image
Scenedesmus incrassatulus var. mononaeG.M. Smith image
Mesogloia filum var. crassaSonder image
Scorpiura incrassata("Turn.") Stackhouse image
Ulothrix zonata var. crassa(Kützing) Stockmayer image
Gomphonema augur var. crassum_('crassa')J.L. Stone in McLaughlin & Stone Beih. Nova Hedwigia 82: 53, pl. 6: fig. 93 1986
Lobophora crassaZ. Sun, P.E. Lim & H. Kawai in Sun et al. Phycologia 51: 507, figs. 14-18 2012
Mesogloia crassaSuringar Mus. Bot. Leide 1: 85, pls. 31-33 1873
Mesogloia crassa f. brevirameaSuringar image
Achnanthes crassa var. ellipticaSuxena & Venkateswarlu image
Epithemia sorex var. crassaD.O. Svirenko Trudy Vseukrainskoi Gosudarstvennoi Chernomorsko-Azovskoi Nauchno-Promyslovoi Opytnoi Stantsii 1: 214, fig. 11 1925
Euglena tripteris var. crassaD.O. Svirenko image
Euglena tripteris var. crassaD.O. Svirenko image
Scenedesmus incrassatulus var. ovalisSvirenko image
Trachelomonas hispida var. incrassataD.O. Svirenko image
Euglena tripteris var. crassaSwirenko Arch. Hydrobiol. u. Planktonk. 10: 325, pl. IV: figs. 12-14 1915
Elachista crassaTakamatsu image
Elachista crassa f. lumbricalisTakamatsu image
Elachista crassa f. rigidaTakamatsu image
Erythrotrichia incrassataTanaka image
Anabaena incrassata var. majorTeiling image
Staurodesmus curvatus var. incrassatus(Scott & Prescott) Teiling image
Staurodesmus sibiricus var. crassangulatus(Børgesen) Teiling image
Spirogyra crassa var. jassiensisTeodoresco image
Lyngbya spirulinoides f. crassaTewari image
Cosmarium clepsydra var. incrassatumTherezien image
Xanthidium biincrassatumK. Thomasson Exploration hydrobiologique du bassin du lac Bangweolo et du Luapula 4(2): 25, pl. I: fig. 9; pl. VIII: fig. 9; pl. XV: fig. 8 1966
Xanthidium biincrassatum f. triquetrumK. Thomasson Exploration hydrobiologique du bassin du lac Bangweolo et du Luapula 4(2): 25, pl. I: figs. 10, 11; pl. VIII: figs. 4-8 1966
Aphanothece stagnina f. crassaTiwari image
Oscillatoria proboscidea f. crassaTiwari image
Glaucocystis incrassata(Lemmermann) Tos. Takahashi & Nozaki in Takahashi et al. Scientific Reports 6:29209, 7 2016
Oscillatoria gomontiana var. crassa(A.B. Gupta) B. Tracanna Opera Lilloana 35: 20 1985
Trachelomonas intermedia f. crassa_(`crassus')B. Tracanna Opera Lilloana 35: 46, 127, pl. 17: fig. 7 1985
Spirogyra crassa var. formosaTranseau image
Brachtia crassa(Naccari) Trevisan image
Acutodesmus incrassatulus(Bohlin) P.M. Tsarenko in Tsarenko & Petlevanny Algologia (unnumbered supplement): 10 2001
Fucus hypoglossum var. incrassatusTurner image
Fucus laceratus var. incrassatusTurner image
Fucus sinuosus var. incrassatusTurner image
Gonatozygon ralfsii f. crassum_('crassa')W.B. Turner image
Porphyra crassaUeda J. Imp. Fish. Inst. [Tokyo] 28: 13 (key), 27, pl. I: 9, 10; pl. VI: 1-7; pl. XVIII: 1 1932
Scenedesmus incrassatulus f. robustusUherkovich image
Helminthoida subcrassaUlrich image
Anabaena oscillarioides var. crassaVasishta image
Lyngbya nigra var. crassaVasishta image
Synedra ulna var. crassaG.S. Venkataraman Proc. Natl. Inst. Sci. India, Biol. Sci. 23: 80, fig. 13 1957
Navicula cuspidata f. crassaVenkataraman image
Pleurotaenium ehrenbergii var. crassum_('crassa')Venkataraman image
Synedra ulna var. crassaG.S. Venkataraman, illeg. image
Netrium naegelii f. crassum_('crassa')Viret image
Nodularia spumigena var. crassaVoronikhin image
Pseudanabaena crassaVozzhennikova Bot. Mater. Bot. Inst. Akad. Nauk SSSR, Spor. Rast. 9: 73, fig. 1:2 1953
Nitzschia medioincrassataVyverman image
Nitella flexilis f. crassaWahlstedt image
Amphiroa crassa f. minutaWeber-van Bosse Siboga-Exped. Monogr. 61: 98, pl. XV: fig. 3 1904
Amphiroa crassa f. godeffroyi(Grun.) Weber-van Bosse image
Micrasterias tropica var. crassa_('crassum')W. West & G.S. West J. Bot. (London) 35: 87, pl. 366: fig. 3 1897
Euastrum pyramidatum var. incrassatumWest & G.S. West image
Tolypothrix crassaW. West & G.S. West image
Cosmarium ocellatum var. incrassatumWest & West image
Cosmarium sulcatum var. incrassatumWest & West image
Cylindrocystis crassa var. elliptica_('ellipticum')West & West image
Oocystis gigas var. incrassataWest & West image
Cosmarium venustum f. incrassatum_('incrassata')W. West image
Euastrum crassangulatum var. ornatumWest image
Microchaete crassaG.S. West image
Mougeotia subcrassaG.S. West image
Cosmarium thwaitesii var. incrassatum_('incrassata')Wille image
Hantzschia crassa var. obtusaWislouch & Poretzky in Poretzky Trudy Leningradskago Obschchestva Estestvoispytatelei 53(3): 148, fig. 12 1924
Oocystis crassaWittrock image
Oscillatoria deflexa var. crassaWoronichin Izv. Glavn. Bot. Sada SSSR [Bull. Jard. Bot. Princ. URSS] 28: 38 1929
Oscillatoria kuetzingiana var. crassaWoronichin Arch. Hydrobiol. 17: 642 1926
Anabaena variabilis f. crassaWoronichin image
Spirogyra subcrassaWoronichin image
Synechocystis crassaWoronichin image
Nodularia spumigena var. crassaWoronichin in Woronichin & Khakhina Izv. Glavn. Bot. Sada SSSR [Bull. Jard. Bot. Princ. URSS] 28: 159, fig. 9 1929
Oscillatoria angusta var. crassaWoronikhin image
Tetradesmus incrassatulus(Bohlin) M.J. Wynne in Wynne & Hallan Feddes Repert. 127: 84 2016
Asterocapsa rubra var. crassaY.-P. Tian in Tien et al. Acta Phytotaxonomica Sinica 39: 282, figs. 5-7 2001
Porphyra pseudocrassaY. Yamada & H. Mikami in Mikami Bot. Mag. Tokyo 69: 340, figs. 1, 2 1956
Padina crassaYamada J. Fac. Sci. Hokkaido Univ., Ser. V (Bot.), 1: 67, pl. XVII: fig. 2 1931
Eucheuma muricatum f. incrassatum_('incrassata')Yamada image
Halimeda incrassata f. distortaYamada image
Denticulopsis crassaY. Yanagisawa & F. Akiba Bull. Geol. Surv. Japan 41: 248, pl. 3: figs. 21-27; pl. 12: figs. 1-8 1990
Rhodymenia crassaZanardini image
Amphora crassa f. minorV. Zanon Bollettino di pesca, piscicoltura e idrobiologia 3: 222, text-fig. 4 1948
Cymbella gallica var. crassaR. d'Aubert image
Fucus incrassatus 'Turner' image
Hydrurus penicillatus f. crassafusconigrescens_('crassa fusco-nigrescens') [Rabenhorst] image
Navicula erosa var. crassa Østrup image
Scenedesmus incrassatus 'Bohlin' image
Thoracosphaera crassaS.E. van Heck & B. Prins Abh. Geol. B.-A. 39: 291, pl. 1: fig. 25 1987
Desmogonium rabenhorstianum var. crassum_('crassa')E.V. Østrup image
Pinnularia parallela var. crassaE.V. Østrup image
Pinnularia rectangulata var. crassaE.V. Østrup image
Stauroneis anceps var. crassaE.V. Østrup image
Synedra ulna var. crassaE.V. Østrup image