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
ASTEROXANTHIDIUM "Kützing" image
Cosmarium pseudoxanthidiumP.F.M. Coesel & A. Van Geest Syst. Geogr. Pls. 79: 24 2009
EUASTRUM subg.XANTHIDIUM (C.G. Ehrenberg) F.T. Kützing image
EUXANTHIDIUMBoldt image
STEPHANOXANTHIDIUM 'F.T.Kützing' image
XANTHIDIUM(C.G. Ehrenberg) F.T. Kützing image
XANTHIDIUM(C.G. Ehrenberg) P.F. Reinsch image
XANTHIDIUMC.G. Ehrenberg image
XANTHIDIUMC.G. Ehrenberg ex J. Ralfs image
XANTHIDIUM sect.SCHIZACANTHUM (P.M. Lundell) F. Gay image
XANTHIDIUM sectionsSCHIZACANTHUM 'Lundell' Hansgirg image
XANTHIDIUM subgen.SCHIZACANTHUM P.M. Lundell image
XANTHIDIUM subgeneraSCHIZACANTHAUM P.M. Lundell image
XANTHIDIUM subgenusEUXANTHIDIUM R. Boldt image
Xanthidium acanthophorumC.E.O. Nordstedt image
Xanthidium acanthophorum f. javanicum_('javanica')C.E.O. Nordstedt image
Xanthidium acanthophorum f. suecicum_('suecica')C.E.O. Nordstedt image
Xanthidium acanthophorum var. bengalicumN.G. Lagerheim image
Xanthidium acanthophorum var. raciborskiiR. Gutwinski image
Xanthidium aculeatumC.G. Ehrenberg image
Xanthidium aculeatumC.G. Ehrenberg ex J. Ralfs image
Xanthidium aculeatum f. brevispinaF.C.E. BÝrgesen image
Xanthidium aculeatum f. brevispinaF.C.E. BÝrgesen image
Xanthidium aculeatum f. spinosumL.S. Peterfi image
Xanthidium aculeatum var. basidentatum(F.C.E. BÝrgesen) West & G.S. West image
Xanthidium aculeatum var. brevispinaG.L. Rabenhorst image
Xanthidium aculeatum var. minus_('minor')L.C. Li image
Xanthidium alpinumSchmidle Österr. Bot. Z. 45: 350, pl. XV: fig. 9 1895
Xanthidium alpinumW. Schmidle image
Xanthidium amazonenseA.M. Scott & H.T. Croasdale image
Xanthidium amazonense var. dicentrotumA.M. Scott & H.T. Croasdale image
Xanthidium angulatum(W. Joshua) M. Hirano image
Xanthidium angulatum(W. Joshua) N.G. Lagerheim image
Xanthidium antilopaeum(Brebisson) Kützing image
Xanthidium antilopaeum f. abnormeI.A. Kisselev image
Xanthidium antilopaeum f. angulatumW. Joshua image
Xanthidium antilopaeum f. angulatum_('angulata')T.J.C. Irenee-Marie image
Xanthidium antilopaeum f. angustatum_('angustata')Irénée-Marie Hydrobiologia 13: 337, pl. III: figs. 4, 5 1959
Xanthidium antilopaeum f. brasilienseC.F.O. Nordstedt image
Xanthidium antilopaeum f. breviaculeatumA.M. Scott & R.L. Grönblad image
Xanthidium antilopaeum f. bulbosumL.S. Peterfi image
Xanthidium antilopaeum f. callosumJ.A. Cushman Rhodora 7: 260, pl. 64: fig. 12 1905
Xanthidium antilopaeum f. compressumL.S. Peterfi image
Xanthidium antilopaeum f. curvispinumJ.A. Cushman image
Xanthidium antilopaeum f. depressum_('depressa')W.B. Turner Alg. Ind. orient.: 100, pl. XII: fig. 24 1893
Xanthidium antilopaeum f. dimazum(Nordstedt) O.A. Petlovany in P.M. Tsarenko et al. (eds.) Algae of Ukraine 4: 443 2015
Xanthidium antilopaeum f. divergensD. Milovanovic image
Xanthidium antilopaeum f. erectumL.S. Peterfi image
Xanthidium antilopaeum f. granulatum_('granulata')Y.V. Roll image
Xanthidium antilopaeum f. hexagonum_('hexagona')B. Eichler & R. Gutwinski image
Xanthidium antilopaeum f. incrassatum_('incrassata')R.L. Grönblad image
Xanthidium antilopaeum f. inevolutumJ. Lütkemüller image
Xanthidium antilopaeum f. inflatum_('inflata')G. Nygaard image
Xanthidium antilopaeum f. irregulare_('irregularis')West & G.S. West image
Xanthidium antilopaeum f. javanicum_('javanica')C.F.O. Nordstedt image
Xanthidium antilopaeum f. longispinaR.L. Grönblad image
Xanthidium antilopaeum f. longispinum(R.L. Grönblad) E.K. Kossinskaja image
Xanthidium antilopaeum f. longispinumA.M. Scott & G.W. Prescott image
Xanthidium antilopaeum f. longispinum_('longispina')Grönblad Acta Societatis Scientarum Fennicae, n.s.B 2{6}: 22, fig. 150 1945
Xanthidium antilopaeum f. majus_('major')Irénée-Marie Hydrobiologia 13: 336, pl. III: fig. 3 1959
Xanthidium antilopaeum f. majus_('major')W.B. Turner image
Xanthidium antilopaeum f. mediolaeveR.L. Grönblad image
Xanthidium antilopaeum f. michiganense_('michiganensis')W.E. Wade image
Xanthidium antilopaeum f. minusA.M. Scott & G.W. Prescott image
Xanthidium antilopaeum f. minus_('minor')Raciborski image
Xanthidium antilopaeum f. oligocanthum(Schmidle) O.A. Petlovany in P.M. Tsarenko et al. (eds.) Algae of Ukraine 4: 444 2015
Xanthidium antilopaeum f. polymazum(Nordstedt) O.A. Petlovany in P.M. Tsarenko et al. (eds.) Algae of Ukraine 4: 443 2015
Xanthidium antilopaeum f. pseudoornatumE.K. Kossinskaja image
Xanthidium antilopaeum f. pseudopolymazumE.K. Kossinskaja image
Xanthidium antilopaeum f. schulziiE. Messikommer image
Xanthidium antilopaeum f. scrobiculatumA.M. Scott & R.L. Grönblad image
Xanthidium antilopaeum f. sexaculeatum_('sexaculeata')R.L. Grönblad image
Xanthidium antilopaeum f. transsilvanicumP. Palik image
Xanthidium antilopaeum f. transsilvanicumP. Palik image
Xanthidium antilopaeum f. tri-tetramazum(Skuja) O.A. Petlovany in P.M. Tsarenko et al. (eds.) Algae of Ukraine 4: 444 2015
Xanthidium antilopaeum f. triquetrum(P.M. Lundell) J. Ruzicka image
Xanthidium antilopaeum f. triquetrumD.B. Williamson Arch. Hydrobiol. Suppl. 143 (Algol. Stud. 105): 84, pl. 2: 3, 4 2002
Xanthidium antilopaeumKützing Sp. alg.: 177 1849
Xanthidium antilopaeum var. americanumA.M. Scott & R.L. Grönblad image
Xanthidium antilopaeum var. ayayenseR.L. Grönblad image
Xanthidium antilopaeum var. basigranulatumG.W. Prescott in G.W. Prescott, C.E. Bicudo & W.C. Vinyard Syn. N. Amer. Desmids II{4}: 48, pl. 311: fig. 3 1982
Xanthidium antilopaeum var. basiornatumB. Eichler & Raciborski Rozpr. Wydz. Mat.-Przyr. Akad. Umiej. [Kraków], ser. 2, 6: 125, pl. III: fig. 31 1893
Xanthidium antilopaeum var. basiornatum_('basiornata')B. Eichler & Raciborski image
Xanthidium antilopaeum var. callosum(J.A. Cushman) Irénée-Marie Hydrobiologia 13: 336 1959
Xanthidium antilopaeum var. canadenseJoshua J. Bot. (London) 23: 34, pl. 254: fig. 5 1885
Xanthidium antilopaeum var. canadenseW. Joshua image
Xanthidium antilopaeum var. candezenseF. Auclair image
Xanthidium antilopaeum var. crameriR.L. Grönblad image
Xanthidium antilopaeum var. depauperatumWest & G.S. West image
Xanthidium antilopaeum var. depressum(W.B. Turner) O.A. Petlovany in P.M. Tsarenko et al. (eds.) Algae of Ukraine 4: 444 2015
Xanthidium antilopaeum var. dimazumC.E.O. Nordstedt image
Xanthidium antilopaeum var. dimazumNordstedt Lunds Univ. A\*orsskr. 9{Afd. II, 10}: 38, pl.: fig. 19 1873
Xanthidium antilopaeum var. eminensH. Bachmann image
Xanthidium antilopaeum var. eurycerumA.M. Scott & R.L. Grönblad image
Xanthidium antilopaeum var. fasciculoidesJ. Lütkemüller image
Xanthidium antilopaeum var. floridenseA.M. Scott & R.L. Grönblad image
Xanthidium antilopaeum var. groenlandicum(R. Boldt) R.L. Grönblad image
Xanthidium antilopaeum var. hebridarumWest & G.S. West image
Xanthidium antilopaeum var. heimansiiP.F.M. Coesel Cryptogamie: Algologie 14: 108, pl. 2: figs. 1, 2 1993
Xanthidium antilopaeum var. heteracanthum(Lagerheim) O.A. Petlovany in P.M. Tsarenko et al. (eds.) Algae of Ukraine 4: 444 2015
Xanthidium antilopaeum var. hirsutumF. Gay Mon. loc. Conj.: 77, no fig. 1884
Xanthidium antilopaeum var. incertumW. Schmidle image
Xanthidium antilopaeum var. incrassatum(R.L. Grönblad) K. Förster image
Xanthidium antilopaeum var. johnsoniiWest & G.S. West image
Xanthidium antilopaeum var. leveW. Schmidle image
Xanthidium antilopaeum var. limneticumG.M. Smith image
Xanthidium antilopaeum var. mamillosumGrönblad Acta Soc. Sci. Fenn. n.s.B, 2{6}: 21, fig. 148 1945
Xanthidium antilopaeum var. mamillosumR.L. Grönblad image
Xanthidium antilopaeum var. minneapolienseF. Wolle image
Xanthidium antilopaeum var. mississippienseA.M. Scott & R.L. Grönblad image
Xanthidium antilopaeum var. nordstedtiiGrönblad Acta Soc. Sci. Fenn. n.s.B 2{6}: 22, fig. 152 1945
Xanthidium antilopaeum var. nordstedtiiR.L. Grönblad image
Xanthidium antilopaeum var. oligocanthumSchmidle Flora 78: 50, pl. VII: fig. 10 1894
Xanthidium antilopaeum var. oligocanthumW. Schmidle image
Xanthidium antilopaeum var. ornatumO.F. Andersson image
Xanthidium antilopaeum var. ovaleW. Schmidle image
Xanthidium antilopaeum var. planumRoll J. Inst. Bot. Acad. Sci. Ukraine 10(18): 9, 27, 29, pl. I: 10, 11; pl. II:17 1936
Xanthidium antilopaeum var. polymazumC.F.O. Nordstedt image
Xanthidium antilopaeum var. polymazumNordstedt Lunds Univ. A\*orsskr. 9{Afd. II, 10}: 38, pl.: fig. 20 1873
Xanthidium antilopaeum var. poriferum_('poriferous')G.W. Prescott in G.W. Prescott, C.E. Bicudo & W.C. Vinyard Syn. N. Amer. Desmids II{4}: 55, pl. 317: fig. 3 1982
Xanthidium antilopaeum var. pseudoalpinumG.W. Prescott, C.E. Bicudo & W.C. Vinyard Syn. N. Amer. Desmids II{4}: 55, pl. 315: fig. 5 1982
Xanthidium antilopaeum var. pseudotropicumGrönblad Acta Soc. Sci. Fenn. n.s.B, 2{6}: 22, fig. 153 1945
Xanthidium antilopaeum var. pseudotropicumR.L. Grönblad image
Xanthidium antilopaeum var. quebecenseT.J.C. Irenee-Marie image
Xanthidium antilopaeum var. schmidleiO.F. Borge image
Xanthidium antilopaeum var. sexaculeatum_('sexaculeata')Grönblad Acta Soc. Sci. Fenn. n.s.B 2{6}: 22, fig. 151 1945
Xanthidium antilopaeum var. sexspinumG.W. Prescott image
Xanthidium antilopaeum var. spinulosumM. HalŠsz image
Xanthidium antilopaeum var. subalpinum(F. Wolle) T.J.C. Irenee-Marie image
Xanthidium antilopaeum var. subeurycerumA.M. Scott & R.L. Grönblad image
Xanthidium antilopaeum var. tri-tetramazumH.L. Skuja image
Xanthidium antilopaeum var. tri-tetramazumSkuja Nova Acta Reg. Soc. Sci. Upsal., ser. 4, 18{3}: 230, pl. XLI: figs. 13-15 1964
Xanthidium antilopaeum var. triquetrumP.M. Lundell image
Xanthidium antilopaeum var. tropicumN.G. Lagerheim image
Xanthidium antilopaeum var. truncatumW.N. Hastings image
Xanthidium antilopaeum var. tylerianum(West) R.M. Whelden image
Xanthidium antilopaeum var. vallesiacumL. Viret image
Xanthidium apiculatum(W. Joshua) M. Hirano image
Xanthidium apiculatumM. Hirano Fl. Desmid. Jap.: 217 1957
Xanthidium apiculiferum f. minusA.M. Scott & R.L. Grönblad image
Xanthidium apiculiferumWest image
Xanthidium aralenseI.A. Kisselev image
Xanthidium arctisconC.G. Ehrenberg image
Xanthidium armatum(L.A. Brebisson) G.L. Rabenhorst image
Xanthidium armatum f. inermeT.J.C. Irenee-Marie image
Xanthidium armatum f. latumY. Therezien image
Xanthidium armatum f. minusP. Bourrelly & A. Couté Biblioth. Phycol. 86: 112, 194, pl. XLII: fig. 6 1991
Xanthidium armatum f. subfissumA.A. Elenkin image
Xanthidium armatum f. triquetrumD.B. Williamson Arch. Hydrobiol. Suppl. 143 (Algol. Stud. 105): 82, pl. 2: 1, 2 2002
Xanthidium armatum f. triquetrumH.L. Skuja image
Xanthidium armatumG.L. Rabenhorst ex J. Ralfs image
Xanthidium armatum var. americanumW.B. Turner image
Xanthidium armatum var. anguligerumWilli Krieger image
Xanthidium armatum var. basidentatumC.F.O. Nordstedt image
Xanthidium armatum var. basidentatumC.F.O. Nordstedt image
Xanthidium armatum var. belgicumH. Kufferath image
Xanthidium armatum var. cervicorneWest & G.S. West image
Xanthidium armatum var. circumornatumK. Förster Amazoniana 2: 59, pl. 20: figs. 18-20 1969
Xanthidium armatum var. depressumG.W. Prescott & A.M. Scott image
Xanthidium armatum var. fissumC.F.O. Nordstedt image
Xanthidium armatum var. incongruumW.B. Turner image
Xanthidium armatum var. intermediumJ.L.B. Schröder image
Xanthidium armatum var. irregulare_('irregularis')West image
Xanthidium armatum var. mediolaeveG.M. Smith image
Xanthidium armatum var. mesopotamicumG. Tell & C.G. Velez image
Xanthidium armatum var. multiarmatumG.W. Prescott in G.W. Prescott, C.E. Bicudo & W.C. Vinyard Syn. N. Amer. Desmids II{4}: 58, pl. 319: fig. 5 1982
Xanthidium armatum var. supernumerariumW. Schmidle image
Xanthidium armatum var. superornatum_(`superornata')P. Bourrelly & A. Couté Biblioth. Phycol. 86: 111, 194, pl. XLII: fig. 5 1991
Xanthidium armatum var. wolleanumW.B. Turner image
Xanthidium articulatumCorda Alman. Carlsbad 10: 213, pl. V: fig. 35 1840
Xanthidium artisconC.G. Ehrenberg ex J. Ralfs image
Xanthidium aseptumNordstedt in Wolle Desm. United States: 93, pl. 21: figs. 9, 10, 11 1884
Xanthidium aseptum var. pyramidatumC.E. Bicudo in G.W. Prescott, C.E. Bicudo & W.C. Vinyard Syn. N. Amer. Desmids II{4}: 59, pl. 317: fig. 32 1982
Xanthidium bangweuluenseK. Thomasson image
Xanthidium bangweuluenseK. Thomasson Nova Acta R. Soc. Sc. Upsal. ser 4., 17{12}: 36, figs. 5:8, 6:3, 7, 7:15, 10:2 1960
Xanthidium basidentatum(Børgesen) P.F.M. Coesel Cryptogamie: Algologie 14: 109 1993
Xanthidium basidentatum(F.C.E. BÝrgesen) P.F.M. Coesel image
Xanthidium basiornatum(B. Eichler & Raciborski) J. Stastny, P. Skaloud & J. Neustupa in Stastny et al. J. Phycol. 49: 414 2013
Xanthidium bengalicumW.B. Turner image
Xanthidium bicornutumP.F. Reinsch image
Xanthidium bifidum(L.A. Brebisson) G. Deflandre image
Xanthidium bifidum var. cruciatum(H.L. Skuja) K. Förster image
Xanthidium bifidum var. latodivergens_('latidivergens')(W. West) K. Förster Amazoniana 5: 162 1974
Xanthidium bifidum var. latodivergens_('latidivergens')(West) K. Förster image
Xanthidium bifidum var. truncatum(W. West) K. Förster Arch. Hydrobiol. Suppl. 63: 379 1983
Xanthidium bifidum var. truncatum(West) K. Förster image
Xanthidium bifurcatumO.F. Borge image
Xanthidium bigorrianum(J.A.M. Perty) G.L. Rabenhorst image
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
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 bisenariumC.G. Ehrenberg image
Xanthidium bisenarium f. typicaW.B. Turner image
Xanthidium bisenarium var. ornatumW.B. Turner image
Xanthidium bisenarium var. rotundatumW.B. Turner image
Xanthidium borgeanumG.W. Prescott, C.E. Bicudo & W.C. Vinyard Syn. N. Amer. Desmids II{4}: 60 1982
Xanthidium borgeanum var. granulatumG.W. Prescott in G.W. Prescott, C.E. Bicudo & W.C. Vinyard Syn. N. Amer. Desmids II{4}: 60, fig. 3 1982
Xanthidium borgei(K. Thomasson) K. Förster Arch. Hydrobiol. Suppl. 63: 380 1983
Xanthidium borgei(K. Thomasson) K. Förster image
Xanthidium botanicumG.I. Playfair image
Xanthidium brachiolatumK. Möbius image
Xanthidium brebissonii f. ancepsBeck-Mannagetta Ve\*vstn. Král. C\*veské Společn. Nauk, Tr\*v. Mat.-Pr\*vír. [Mém. Soc. Roy. Sci. Bohe\*^me, Cl. Sci.] 1926{10}: 12, fig. 22 1927
Xanthidium brebissonii f. punctatum_('punctata')B. Eichler & Raciborski image
Xanthidium brebissoniiJ. Ralfs image
Xanthidium brebissonii var. basidentatumBørgesen Bot. Tidsskr. 17: 148, 151, pl. 6: fig. 11 1889
Xanthidium brebissonii var. basidentatumF.C.E. BÝrgesen image
Xanthidium brebissonii var. variansJ. Ralfs image
Xanthidium brevicorne var. ceylanicumWest & G.S. West image
Xanthidium brevicorne var. madagascarienseP. Bourrelly & A. Couté Biblioth. Phycol. 86: 112, 194, pl. XLII: fig. 8 1991
Xanthidium brevicorneW.B. Turner image
Xanthidium brevinasutumK. Thomasson Exploration hydrobiologique du bassin du lac Bangweolo et du Luapula 4(2): 25, pl. VIII: figs. 1-3 1966
Xanthidium brevispinumF.E. Fritsch image
Xanthidium bucerium(Irénée-Marie) M. Poulin in Poulin, Hamilton, & Proulx Canadian Field-Naturalist 109: 69 1995
Xanthidium bulbosumC.G. Ehrenberg image
Xanthidium burkillii var. aculeatumY. Therezien image
Xanthidium burkillii var. alternansH.L. Skuja image
Xanthidium burkillii var. croasdaleaeA.K.M.N. Islam image
Xanthidium burkilliiWest & G.S. West image
Xanthidium calcarato-aculeatum(H.H.E.W. Hieronymus) W. Schmidle image
Xanthidium calcarato-aculeatum var. sudanenseR.L. Grönblad & A.M. Scott image
Xanthidium canadense(Joshua) K. Förster Amazoniana 2: 60 1969
Xanthidium canadense var. amazonenseK. Förster Arch. Hydrobiol. Suppl. 60(3) (Algol. Stud. 28): 247 1981
Xanthidium canadense var. basiornatum(B. Eichler & Raciborski) Kurt Förster image
Xanthidium canadense var. borgei(K. Förster) K. Förster Arch. Hydrobiol. Suppl. 60(3) (Algol. Stud. 28): 247 1981
Xanthidium canadense var. borgeiK. Förster Amazoniana 2: 60, pl. 22: figs. 2-4 1969
Xanthidium canadense var. magnumK. Förster Amazoniana 2: 61, pl. 22: fig. 1 1969
Xanthidium canadense var. magnumKurt Förster ex G.J.P. Ramos & C.W.N. Moura Notulae Algarum 249: 2, fig. 6 2022
Xanthidium caulfieldiiA.M. Scott ex H. Croasdale in Croasdale & Scott Nova Hedwigia 27: 536, pl. 10:9,10 1976
Xanthidium caulfieldiiA.M. Scott ex H.T. Croasdale image
Xanthidium ceylanicumWest & G.S. West image
Xanthidium chalubinskiiB. Eichler & Raciborski image
Xanthidium columbianumF. Wolle image
Xanthidium concinnum var. americanumA.M. Scott & R.L. Grönblad image
Xanthidium concinnum var. boldtianum_('Boldtiana')West image
Xanthidium concinnum var. floridenseA.M. Scott & R.L. Grönblad image
Xanthidium concinnum var. guyanenseY. Therezien image
Xanthidium concinnum var. hexagonum(R. Boldt) M. Hirano image
Xanthidium concinnum var. longispinumM.A. Santos & C.W.N. Moura in Moura et al. Phytotaxa 536: 231, figs. 2, 17-24 2022
Xanthidium concinnum var. ozenseM. Hirano image
Xanthidium concinnum var. polymorphumA. CoutŤ & G. Rousselin image
Xanthidium concinnum var. scottiiC.E. Bicudo in G.W. Prescott, C.E. Bicudo & W.C. Vinyard Syn. N. Amer. Desmids II{4}: 62, pl. 310: figs. 1, 2 1982
Xanthidium concinnum var. variansR.L. Grönblad image
Xanthidium concinnumW. Archer image
Xanthidium controversum var. angulosumT.J.C. Irenee-Marie image
Xanthidium controversum var. isthmolatumT.J.C. Irenee-Marie image
Xanthidium controversum var. planctonicumWest & G.S. West image
Xanthidium controversum var. protuberans(K. Förster) Y. Therezien image
Xanthidium controversumW. West & G.S. West J. Linn. Soc. London, Bot. 33: 298, pl. 17: fig. 2 1898
Xanthidium controversumWest & G.S. West image
Xanthidium convergens(C.G. Ehrenberg) G.B. Delponte image
Xanthidium coogeeanumG.I. Playfair image
Xanthidium coronatumC.G. Ehrenberg image
Xanthidium coronatumJ. Pavillard image
Xanthidium cosmariforme f. evolutum_('evoluta')W.B. Turner image
Xanthidium cosmariformeW.B. Turner image
Xanthidium crassipesC.G. Ehrenberg ex J. Ralfs image
Xanthidium crassipesH.H. White image
Xanthidium cristatum f. africanum_('africana')W. Schmidle image
Xanthidium cristatum f. angulatumWest image
Xanthidium cristatum f. depauperatum_('depauperata')T.J.C. Irenee-Marie image
Xanthidium cristatum f. depressum_('depressa')H. Homfeld image
Xanthidium cristatum f. floridenseA.M. Scott & R.L. Grönblad image
Xanthidium cristatum f. inevolutum_('inevoluta')W.B. Turner image
Xanthidium cristatum f. inornatum_('inornata')W.B. Turner image
Xanthidium cristatum f. irregulare_('irregularis')Raciborski image
Xanthidium cristatum f. irregulare_('irregularis')W.B. Turner image
Xanthidium cristatum f. laeveR.L. Grönblad image
Xanthidium cristatum f. laeve_('laevis')M.I. Claassen image
Xanthidium cristatum f. longispinaR.L. Grönblad image
Xanthidium cristatum f. mizoroense_(`mizoroensis')Y. Kanetsuna Phycol. Res. 50: 108, figs. 40-44 2002
Xanthidium cristatum f. mucronatum_('mucronata')West image
Xanthidium cristatum f. ornatumD.C. Jackson ex G.W. Prescott, C.E. Bicudo & W.C. Vinyard Syn. N. Amer. Desmids II{4}: 67, pl. 322: fig. 6 1982
Xanthidium cristatum f. papillatumA.M. Scott & R.L. Grönblad image
Xanthidium cristatum f. polonicum_('polonica')R. Gutwinski image
Xanthidium cristatum f. polonicum_('polonica')R. Gutwinski image
Xanthidium cristatum f. saeptatumL.S. Peterfi image
Xanthidium cristatum f. simplexT.J.C. Irenee-Marie image
Xanthidium cristatum f. triquetrumT.J.C. Irenee-Marie image
Xanthidium cristatumL.A. Brebisson image
Xanthidium cristatum var. africanumA. Coute & G. Rousselin image
Xanthidium cristatum var. africanumCouté & Rousselin Bull. Mus. Natl. Hist. Nat. [Paris], Bot. 21: 114, 134, pl. XI: 3 1975
Xanthidium cristatum var. bituberculatumC.W. Lowe image
Xanthidium cristatum var. delpontei_('delpontii')J. Roy image
Xanthidium cristatum var. depressumRaciborski image
Xanthidium cristatum var. dimazumR.L. Grönblad image
Xanthidium cristatum var. erectumW.B. Turner image
Xanthidium cristatum var. glabrumN.G. Lagerheim image
Xanthidium cristatum var. hipparquei_('hipparquii')Irénée-Marie Fl. desmid. Montreal: 244, pl. 43: fig. 6 1939
Xanthidium cristatum var. hipparquiiT.J.C. Irenee-Marie image
Xanthidium cristatum var. leiodermum(J. Roy & J. Bisset) W.B. Turner image
Xanthidium cristatum var. ornatum(W.B. Turner) E.A.J. De Wildeman image
Xanthidium cristatum var. papilliferumT.J.C. Irenee-Marie image
Xanthidium cristatum var. pustulatumA.M. Scott & R.L. Grönblad image
Xanthidium cristatum var. rotundatum(W.B. Turner) E.A.J. De Wildeman image
Xanthidium cristatum var. scrobiculatumA.M. Scott & Grönblad Acta Soc. Sci. Fenn. n.s.B, 2{8}: 30, pl. 17, figs. 3-6 1957
Xanthidium cristatum var. scrobiculatumA.M. Scott & R.L. Grönblad image
Xanthidium cristatum var. spinuliferumWest image
Xanthidium cristatum var. subafricanumCouté & Rousselin Rev. Algol., ser. 2 12: 3 1977
Xanthidium cristatum var. transvaalenseM.I. Claassen image
Xanthidium cristatum var. tropicumWest & G.S. West image
Xanthidium cristatum var. truncatumF.L. Harvey image
Xanthidium cristatum var. truncatumF.L. Harvey image
Xanthidium cristatum var. uncinatumBrébisson ex Ralfs Brit. Desmid.: 115, pl. XIX: fig. 3d-f 1848
Xanthidium cristatum var. uncinatumL.A. Brebisson image
Xanthidium croasdalianumG.R. Hegde image
Xanthidium decemdenticulatumG.I. Playfair image
Xanthidium decoratum f. simplexP. Bourrelly & A. Couté Biblioth. Phycol. 86: 114, 195, pl. XLI: fig. 7 1991
Xanthidium decoratumF.E. Fritsch & M.F. Rich Trans. Roy. Soc. S. Afr. 25: 199, fig. 19A-C 1937
Xanthidium decoratum var. longispinumK. Thomasson Exploration hydrobiologique du bassin du lac Bangweolo et du Luapula 4(2): 26, pl. 9: 10; pl. 10: 9 1966
Xanthidium delitienseC.G. Ehrenberg image
Xanthidium deltoideumCorda Alman. Carlsbad 10: 214, pl. V: figs. 38, 39 1840
Xanthidium depauperatum(West & G.S. West) K. Förster image
Xanthidium didymumK.E. Eichwald image
Xanthidium difformeC.G. Ehrenberg image
Xanthidium dilatatumC.F.O. Nordstedt image
Xanthidium dilatatumC.F.O. Nordstedt image
Xanthidium echinatumCroasdale in Grönblad & Croasdale Acta Botanica Fennica 93: 40 1971
Xanthidium echinatumH.T. Croasdale image
Xanthidium echinusC.G. Ehrenberg image
Xanthidium eckertiiK. Förster image
Xanthidium eckertiiKurt Förster Hydrobiologia 23: 410, pl. 26: figs. 6-8; pl. 48: figs. 8, 9 1964
Xanthidium ehrenbergiiCorda Alman. Carlsbad 10: 214, pl. V: figs. 36, 37 1840
Xanthidium eximiumW.B. Turner image
Xanthidium fasciculatumC.G. Ehrenberg image
Xanthidium fasciculatumC.G. Ehrenberg ex J. Ralfs image
Xanthidium fasciculatum f. cristatoidesJ.P. Jacobsen image
Xanthidium fasciculatum f. geminospinosaJ.P. Jacobsen image
Xanthidium fasciculatum f. lapponicum_('lapponica')(W. Schmidle) R.L. Grönblad image
Xanthidium fasciculatum f. lapponicum_('lapponica')W. Schmidle image
Xanthidium fasciculatum f. longispinaB. Eichler & Raciborski image
Xanthidium fasciculatum f. minusE.K. Kossinskaja image
Xanthidium fasciculatum f. perornatumH.L. Skuja image
Xanthidium fasciculatum f. simplexJ.P. Jacobsen image
Xanthidium fasciculatum f. supernumerarium_('supernumeraria')C.F.O. Nordstedt image
Xanthidium fasciculatum f. triquetrum_('triquetra')(P.M. Lundell) J.P. Jacobsen image
Xanthidium fasciculatum var. antilopaeum(L.A. Brebisson) G.L. Rabenhorst image
Xanthidium fasciculatum var. antilopaeum(L.A. Brebisson) L.A. Brebisson image
Xanthidium fasciculatum var. basidentatum(Børgesen) J. Ruzicka image
Xanthidium fasciculatum var. hexagonumF. Wolle image
Xanthidium fasciculatum var. longispinumGrönblad Acta Soc. Fauna et Flora Fenn. 49{7}: 52, pl. IV: figs. 25-27 1921
Xanthidium fasciculatum var. longispinumR.L. Grönblad image
Xanthidium fasciculatum var. minus_('minor')F. Wolle image
Xanthidium fasciculatum var. ornatumC.F.O. Nordstedt image
Xanthidium fasciculatum var. oronenseWest & G.S. West image
Xanthidium fasciculatum var. perornatumC.F.O. Nordstedt image
Xanthidium fasciculatum var. perornatumC.F.O. Nordstedt image
Xanthidium fasciculatum var. polygonumC.G. Ehrenberg image
Xanthidium fasciculatum var. polygonumC.G. Ehrenberg ex J. Ralfs image
Xanthidium fasciculatum var. pulchrum_('pulchra')G. IstvŠnfy de CsŪk Madefalva image
Xanthidium fasciculatum var. siamenseY. Kanetsuna Phycol. Res. 50: 108, figs. 81, 82 2002
Xanthidium fasciculatum var. subalpinumF. Wolle image
Xanthidium fimbriatumH.H. White image
Xanthidium floridanumC.E. Bicudo & G.W. Prescott in G.W. Prescott, C.E. Bicudo & W.C. Vinyard Syn. N. Amer. Desmids II{4}: 69, pl. 325: figs. 5-7 1982
Xanthidium forcipatumO.F. Borge image
Xanthidium fragileO.F. Borge image
Xanthidium fragile var. depauperatumO.F. Borge image
Xanthidium freemanii var. spinosissimumA. Bernard image
Xanthidium freemaniiWest & G.S. West image
Xanthidium furcatumC.G. Ehrenberg image
Xanthidium furcatumC.G. Ehrenberg image
Xanthidium gerloffiiA. Coute & G. Tell image
Xanthidium glabrum(N.G. Lagerheim) N.G. Lagerheim image
Xanthidium globosumH.H. White image
Xanthidium gloriosumG.S. West image
Xanthidium gotlandicumR.L. Grönblad image
Xanthidium groenlandicum f. depauperatum_('depauperata')E. Larsen Meddel. Gronl. 33: 355, pl. VIII: fig. 12 1907
Xanthidium groenlandicumR. Boldt image
Xanthidium hastiferum f. angulatum_('angulata')W.B. Turner image
Xanthidium hastiferum f. longispinumJ.A. Cushman image
Xanthidium hastiferum f. nodulosumD.B. Williamson Arch. Hydrobiol. Suppl. 125 (Algol. Stud. 90): 66, pl. 11: 6 1998
Xanthidium hastiferum f. planum_('plana')W.B. Turner image
Xanthidium hastiferum f. typicaW.B. Turner image
Xanthidium hastiferum var. curvispinosumY. Okada image
Xanthidium hastiferum var. inevolutumC.F.O. Nordstedt image
Xanthidium hastiferum var. inevolutumC.F.O. Nordstedt image
Xanthidium hastiferum var. javanicum(C.F.O. Nordstedt) W.B. Turner image
Xanthidium hastiferum var. johnsoniiWest & G.S. West image
Xanthidium hastiferum var. reductumE.A.J. De Wildeman image
Xanthidium hastiferum var. silesiacumR.L. Grönblad image
Xanthidium hastiferum var. toweriJ.A. Cushman image
Xanthidium hastiferumW.B. Turner image
Xanthidium hebridarum(West & G.S. West) K. Förster image
Xanthidium heimiiP. Bourrelly image
Xanthidium helenaeG.E. Huber-Pestalozzi image
Xanthidium heteracanthumLagerheim Öfvers. K. [Svenska] Vet.-Akad. Förh. 42{7}: 239, pl. XXVI: fig. 24 1886
Xanthidium heteracanthumN.G. Lagerheim image
Xanthidium hexacanthumW.B. Turner image
Xanthidium hexagonum(R. Boldt) W.B. Turner image
Xanthidium hexagonumG.I. Playfair image
Xanthidium hirsutumC.G. Ehrenberg image
Xanthidium hirsutumEhrenberg Abh. K. Akad. Wiss. Berlin, Phys. Kl. 1833: 318 1834
Xanthidium hirsutumKirchner Alg. Schles.: 155 1878
Xanthidium hirsutumO. Kirchner image
Xanthidium homoeacanthumMax Schmidt Grundlagen einer Algenflora der Lüneburger Heide: 17, pl. I: fig. 4 1903
Xanthidium horridumH.L. Skuja image
Xanthidium horridum var. decoratumA.M. Scott & G.W. Prescott image
Xanthidium hystrixP.T. Cleve image
Xanthidium impar(J.P. Jacobsen) G. Deflandre image
Xanthidium impar var. protuberans(A.M. Scott & Grönblad) P. Bourrelly & A. Couté Biblioth. Phycol. 86: 115 1991
Xanthidium inchoatumC.F.O. Nordstedt image
Xanthidium inchoatumC.F.O. Nordstedt image
Xanthidium inchoatum f. reductumA.M. Scott ex H. Croasdale in Croasdale & Scott Nova Hedwigia 27: 538, pl. 12:5. 1976
Xanthidium inchoatum f. reductumA.M. Scott ex H.T. Croasdale image
Xanthidium inchoatum var. alpinum(Raciborski) G.I. Playfair image
Xanthidium inchoatum var. cracoviense(Raciborski) G.I. Playfair image
Xanthidium inchoatum var. mammillatumG.I. Playfair image
Xanthidium inconspicuumWest & G.S. West image
Xanthidium indicumN.G. Lagerheim image
Xanthidium ineptumW.B. Turner image
Xanthidium intermediumW.M. Maskell image
Xanthidium japonicumM. Hirano Acta Phytotax. et Geobot. 14: 1, fig. 3 1949
Xanthidium johnsonii f. retusumA.M. Scott in G.W. Prescott, C.E. Bicudo & W.C. Vinyard Syn. N. Amer. Desmids II{4}: 72, pl. 310: fig. 12 1982
Xanthidium johnsoniiWest & G.S. West image
Xanthidium kalimantanumA.M. Scott & G.W. Prescott image
Xanthidium leiodermumJ. Roy & J. Bisset image
Xanthidium lenticulareP.F.M. Coesel & N. Ngearnpat in P. Coesel, N. Ngearnpat & Y. Peerapornisal Algol. Studies 131: 19, figs. 6-8 2009
Xanthidium lepidum var. reversumA.M. Scott & G.W. Prescott image
Xanthidium lepidumWest & G.S. West image
Xanthidium loktakenseP.J. Brühl & K.P. Biswas image
Xanthidium longispinum(Grönblad) Palamar'-Mordvintseva Opredelitel' presnovodnykh vodoroslei SSSR 11{2}: 584 1982
Xanthidium longispinum(K. Thomasson) P.F.M. Coesel & A. Van Geest Plant Ecology and Evolution 149: 104 2016
Xanthidium luetzelburgiiK. Förster & F. Eckert image
Xanthidium luetzelburgiiKurt Förster & Eckert in Förster Revue Algologique, ser. 2, 7: 77, pl. 6: fig. 1; pl. 9: fig. 16 1963
Xanthidium malleoferumH.H. White image
Xanthidium mamillosum(Grönblad) K. Förster Arch. Hydrobiol. Suppl. 60(3) (Algol. Stud. 28): 247 1981
Xanthidium mamillosum var. borgeiK. Förster Arch. Hydrobiol. Suppl. 60(3) (Algol. Stud. 28): 247, pl. 2: fig. 19 (in Borge 1925) 1981
Xanthidium mamillosum var. groenbladiiG.J.P. Ramos & C.W.N. Moura Notulae algarum 118: 2 2019
Xanthidium mamillosum var. longispinum(Borge) K. Förster Amazoniana 5: 162 1974
Xanthidium mamillosum var. longispinum(Borge) K. Förster image
Xanthidium mamillosum var. mediolaeve(R.L. Grönblad) A. Coute & G. Tell image
Xanthidium mamillosum var. nordstedtii(Grönblad) K. Förster Amazoniana 2: 62 1969
Xanthidium mamillosum var. pseudotropicum(Grönblad) K. Förster Amazoniana 2: 62 1969
Xanthidium mamillosum var. sexaculeatum(Grönblad) K. Förster Amazoniana 2: 62 1969
Xanthidium mamillosum_('mammillosum')(Grönblad) K. Förster Hydrobiologia 23: 411 1964
Xanthidium mammillosum(R.L. Grönblad) K. Förster image
Xanthidium mammillosum var. borgeiK. Förster image
Xanthidium manschuricumB.V. Skvortzov image
Xanthidium mauricianumT.J.C. Irenee-Marie image
Xanthidium mayorii_('mayori')G.S. West image
Xanthidium micracanthumR.L. Grönblad & A.M. Scott image
Xanthidium micracanthum var. angustatumP.F.M. Coesel & A. Van Geest Syst. Geogr. Pls. 79: 26, figs. 44, 45 2009
Xanthidium mogolense(Cholnoky) A. Levanets in Levanets & Van Rensburg Desmids southern Africa: 332 2011
Xanthidium mucronulatum(Nordstedt) A. Couté & G. Tell image
Xanthidium multicorneO.F. Borge image
Xanthidium multigibberum(C.F.O. Nordstedt) H.L. Skuja image
Xanthidium multispinosumGrönblad & Croasdale Acta Botanica Fennica 69: 47, figs. 143, 144 1965
Xanthidium multispinosumK. Möbius image
Xanthidium multispinosumR.L. Grönblad & H.T. Croasdale image
Xanthidium multispinumM. Hirano Contrib. Biol. Lab. Kyoto Univ. 28: 63, pl. 35: figs. 1, 2 1992
Xanthidium multituberculatumK. Förster & F. Eckert image
Xanthidium multituberculatumKurt Förster & Eckert in Förster Hydrobiologia 23: 411, pl. 25: fig. 14; pl. 48: fig. 7 1964
Xanthidium nordstedtianumP.F. Reinsch image
Xanthidium nordstedtii(R.L. Grönblad) R.L. Grönblad & A.M. Scott image
Xanthidium obsoletum var. brasilienseR.L. Grönblad image
Xanthidium obsoletum var. waltheriG. Nygaard image
Xanthidium obsoletumW.R. Taylor image
Xanthidium octocorne(C.G. Ehrenberg) J. Ralfs image
Xanthidium octocorne f. havaiense_('havaiensis')C.F.O. Nordstedt image
Xanthidium octocorne f. imparJ.P. Jacobsen Bot. Tidsskr. 8: 211, pl. VIII: fig. 28 1876
Xanthidium octocorne f. minus_('minor')J.P. Jacobsen image
Xanthidium octocorneJ. Ralfs image
Xanthidium octocorneJ. Ralfs image
Xanthidium octocorneRalfs Brit. Desmid.: 116, pl. XX: fig. 2 1848
Xanthidium octocorne var. depressum(Grönblad) P.F.M. Coesel Cryptogamie: Algologie 14: 109 1993
Xanthidium octocorne var. depressum(R.L. Grönblad) P.F.M. Coesel image
Xanthidium octocorne var. majus_('major')J. Ralfs image
Xanthidium octocorne var. mamillatum(A.M. Scott & Grönblad) M. Poulin in Poulin, Hamilton, & Proulx Canadian Field-Naturalist 109: 70 1995
Xanthidium octocorne var. protuberans(A.M. Scott & Grönblad) K. Förster Nova Hedwigia 23: 566 1973
Xanthidium octocorne var. protuberans(A.M. Scott & R. Grönblad) K. Förster image
Xanthidium octocorne var. tenue(Irénée-Marie) M. Poulin in Poulin, Hamilton, & Proulx Canadian Field-Naturalist 109: 70 1995
Xanthidium octonariumC.F.O. Nordstedt image
Xanthidium octonariumC.F.O. Nordstedt image
Xanthidium octonarium var. cornutumG.I. Playfair image
Xanthidium oligocanthum_('oligacanthum')(Schmidle) Cedergren image
Xanthidium orbiculareC.J. Bernard image
Xanthidium orcadense var. reductumM. Hirano image
Xanthidium orcadenseWest & G.S. West image
Xanthidium ornatumO.F. Borge image
Xanthidium paraguayenseO.F. Borge image
Xanthidium paucispinosumP.T. Cleve image
Xanthidium paulenseO.F. Borge image
Xanthidium penicillatumC.G. Ehrenberg image
Xanthidium perissacanthumA.M. Scott & G.W. Prescott image
Xanthidium perissacanthum var. minusA.M. Scott & G.W. Prescott image
Xanthidium pilosumC.G. Ehrenberg image
Xanthidium pilosumC.G. Ehrenberg image
Xanthidium pilosumEhrenberg Mikrogeologie, Atlas: 21, pl. XXXVII: VIII: fig. 4 1854
Xanthidium pilosumEhrenberg Ber. Akad. Wiss. Berlin 1836: 114 1836
Xanthidium planctonicumWest & G.S. West image
Xanthidium polygonum(C.G. Ehrenberg) A.H. Hassall image
Xanthidium prescottiiM.R. Suxena J. Indian Bot. Soc. 58: 269, fig. 1 1979
Xanthidium protuberans(Kurt Förster & Eckert) G.J.P. Ramos & C.W.N. Moura Notulae algarum 118: 2 2019
Xanthidium pseudobengalicumR.L. Grönblad image
Xanthidium pseudobengalicum var. basiornatumP. Bourrelly image
Xanthidium pseudobengalicum var. scrobiculatumG.W. Prescott in G.W. Prescott, C.E. Bicudo & W.C. Vinyard Syn. N. Amer. Desmids II{4}: 74, pl. 324: fig. 1 1982
Xanthidium pseudofreemaniiY. Kanetsuna Phycol. Res. 50: 110, figs. 26, 27, 73, 74 2002
Xanthidium pseudoraciborskiiN. Woodhead & R.D. Tweed image
Xanthidium pseudoregulareBorge Ark. Bot. 1: 103, pl. 4: fig. 1 1903
Xanthidium pseudoregulareO.F. Borge image
Xanthidium pseudoregulare var. hexagonumK. Thomasson image
Xanthidium pulcherrimumG.I. Playfair image
Xanthidium pulchrumW.B. Turner image
Xanthidium pyritaeC.G. Ehrenberg image
Xanthidium quadricorneC.G. Ehrenberg image
Xanthidium quadricornutum f. longispinaF.C.E. BÝrgesen image
Xanthidium quadricornutum f. longispinaF.C.E. BÝrgesen image
Xanthidium quadricornutumJ. Roy & J. Bisset image
Xanthidium quadridentatumWest & G.S. West image
Xanthidium raciborskii f. protractum_('protracta')R. Gutwinski image
Xanthidium raciborskiiR. Gutwinski image
Xanthidium raciborskii var. glabrumC.C. Jao image
Xanthidium ramosumC.G. Ehrenberg image
Xanthidium raneegungenseW.B. Turner image
Xanthidium raui_('rauii')(Wolle) T. Fairbanks Notulae algarum 152: 1 2020
Xanthidium rectocornutumF. Wolle image
Xanthidium reginaldii_('Reginaldi')G.A. Mantell The Medals of Creation, ed. 1: 240, fig. 5 1844
Xanthidium regulareC.F.O. Nordstedt image
Xanthidium regulare f. robustius_('robustior')Grönblad Acta Soc. Sci. Fenn. n.s.B 2{6}: 22, fig. 161 1945
Xanthidium regulare f. robustius_('robustior')R.L. Grönblad image
Xanthidium regulare var. asteptumC.F.O. Nordstedt image
Xanthidium regulare var. foersteriC.E.M. Bicudo image
Xanthidium regulare var. novangulareP.F.M. Coesel Cryptog.: Algol. 8: 136, pl. IV: figs. 1, 2 1987
Xanthidium regulare var. sexangulareGrönblad Acta Soc. Sci. Fenn. n.s.B 2{6}: 22, no fig. 1945
Xanthidium regulare var. sexangulareR.L. Grönblad image
Xanthidium riethallienseS.G. Bharati & G.R. Hegde Phykos ?? 1982
Xanthidium robinsonianumArcher in Crowe Quart. J. Microsc. Sci., ser. 2, 20: 114, 116 1880
Xanthidium robinsonianum var. alpinumP. Bourrelly image
Xanthidium robinsonianum var. divergensGrönblad Bot. Not. 1938: 52, fig. 1:8 1938
Xanthidium robinsonianum var. divergensR.L. Grönblad image
Xanthidium robinsonianum var. hexagonumH.L. Skuja image
Xanthidium robinsonianum var. parvulumH.L. Skuja image
Xanthidium rupicapraR. Margalef image
Xanthidium sachlanii(A.M. Scott & G.W. Prescott) A. Couté & G. Tell image
Xanthidium sansibarense(G.H.E.W. Hieronymus) W. Schmidle image
Xanthidium sansibarense f. asymmetricumA.M. Scott & G.W. Prescott image
Xanthidium sansibarense f. majus_('major')F.E. Fritsch & M.F. Rich image
Xanthidium sansibarense f. simplexP. Bourrelly image
Xanthidium sansibarense var. bangweuluenseK. Thomasson Exploration hydrobiologique du bassin du lac Bangweolo et du Luapula 4(2): 27, pl. I: fig. 12 1966
Xanthidium sansibarense var. verrucosumR.L. Grönblad & A.M. Scott image
Xanthidium sardinienseP.F.M. Coesel & S. Alfinito Nord. J. Bot. 25: 251, figs. 17, 18, 25-27 2007
Xanthidium scottiiH. Croasdale in Croasdale & Scott Nova Hedwigia 27: 540, pl. 11:4 1976
Xanthidium scottiiH.T. Croasdale image
Xanthidium scrobiculatum(A.M. Scott & Grönblad) J. Stastny, P. Skaloud & J. Neustupa in Stastny et al. J. Phycol. 49: 415 2013
Xanthidium searsolenseW.B. Turner image
Xanthidium sexangulare(Grönblad) K. Förster Amazoniana 2: 62 1969
Xanthidium sexangulare var. pseudoregulare(Borge) K. Förster Amazoniana 2: 63 1969
Xanthidium sexangulare var. robustius(Grönblad) K. Förster Amazoniana 2: 63 1969
Xanthidium sexmamillatum f. simplexG.R. Hegde image
Xanthidium sexmamillatum var. pulneyense_('pulneyensis')M.O.P. Iyengar & B. Vimala Bai image
Xanthidium sexmamillatum var. robustumWest & G.S. West image
Xanthidium sexmamillatumWest & G.S. West image
Xanthidium simpliciusC.F.O. Nordstedt image
Xanthidium simpliciusC.F.O. Nordstedt image
Xanthidium simplicius var. botanicum(G.I. Playfair) G.I. Playfair image
Xanthidium simplicius var. intermediumG.I. Playfair image
Xanthidium simplicius var. pseudosmithiiG.W. Prescott & A.M. Scott image
Xanthidium sioliiR.L. Grönblad & H.T. Croasdale image
Xanthidium smithiiArcher Proc. Dublin Nat. Hist. Soc. 3: 51, pl. I: figs. 10-12 1863
Xanthidium smithii f. elevatumG.W. Prescott & A.M. Scott ex G.W. Prescott in G.W. Prescott, C.E. Bicudo & W.C. Vinyard Syn. N. Amer. Desmids II{4}: 77, pl. 310: figs. 18, 21 1982
Xanthidium smithii f. impar(J.P. Jacobsen) Palamar'-Mordvintseva Opredelitel' presnovodnykh vodoroslei SSSR 11{2}: 584 1982
Xanthidium smithii f. laeveR.L. Grönblad image
Xanthidium smithii f. minus_('minor')West & G.S. West image
Xanthidium smithii var. collumWest image
Xanthidium smithii var. crucense_('crucensis')M. Dürrschmidt image
Xanthidium smithii var. impar(J.P. Jacobsen) H.L. Skuja image
Xanthidium smithii var. majus(J. Ralfs) West & G.S. West image
Xanthidium smithii var. octocorne(Ralfs) Palamar'-Mordvintseva Opredelitel' presnovodnykh vodoroslei SSSR 11{2}: 526, 584 1982
Xanthidium smithii var. variabileC.F.O. Nordstedt image
Xanthidium smithii var. variabileC.F.O. Nordstedt image
Xanthidium smithiiW. Archer image
Xanthidium sonfonenseN. Woodhead & R.D. Tweed image
Xanthidium spinosum(W. Joshua) West & G.S. West image
Xanthidium spinosumH.H. White image
Xanthidium spinulosumA.W. Bennett image
Xanthidium stuhlmannii(G.H.E.W. Hieronymus) W. Schmidle image
Xanthidium subaculeatumK. Förster & F. Eckert image
Xanthidium subaculeatumKurt Förster & Eckert in Förster Hydrobiologia 23: 413, pl. 26: fig. 4 1964
Xanthidium subhastiferum f. smithiiW.E. Wade image
Xanthidium subhastiferum f. triquetrum_('triquetra')West & G.S. West image
Xanthidium subhastiferum var. johnsonii(West & G.S. West) G.M. Smith image
Xanthidium subhastiferum var. johnsonii(West & G.S. West) G.M. Smith image
Xanthidium subhastiferum var. murrayiWest & G.S. West image
Xanthidium subhastiferum var. toweri(J.A. Cushman) G.M. Smith image
Xanthidium subhastiferumWest image
Xanthidium submicracanthumE.A. Flint & D.B. Williamson Arch. Hydrobiol. Suppl. 126 (Algol. Stud. 91): 89, pl. 7: 3 1998
Xanthidium subtrilobatum var. inornatumSkuja image
Xanthidium subtrilobum f. depressumY. Kanetsuna Phycol. Res. 50: 110, figs. 19-21 2002
Xanthidium subtrilobum f. singulareY. Kanetsuna Phycol. Res. 50: 110, figs. 48-51 2002
Xanthidium subtrilobum var. africanum(W. Schmidle) R.L. Grönblad & A.M. Scott image
Xanthidium subtrilobum var. crux-lotharingiense_('crux-lotharingiensis')K. Thomasson Exploration hydrobiologique du bassin du lac Bangweolo et du Luapula 4(2): 27, pl. VII: fig. 2 1966
Xanthidium subtrilobum var. inornatumSkuja Nova Acta R. Soc. Sci. Upsal., ser. 4, 14{5}: 151, pl. XXXIII: fig. 14 1949
Xanthidium subtrilobum var. kriegeri_('kriegerii')C.C. Jao image
Xanthidium subtrilobumWest & G.S. West image
Xanthidium superbumF.E.V. Elfving image
Xanthidium superbum var. centricorneProwse ex Levanets & Guiry Notulae algarum 193: 2 (descr., illustr. in Prowse, Gardens' Bulletin Singapore 24: 344. 1969) 2021
Xanthidium superbum var. centricorne_('centricornis')G.A. Prowse image
Xanthidium tenuissimum(W. Archer) W. Turner image
Xanthidium tenuissimum f. longispina_('longispinum')(W. West & G.S. West) Palamar'-Mordvintseva Opredelitel' presnovodnykh vodoroslei SSSR 11{2}: 584 1982
Xanthidium tenuissimum var. amazonenseK. Förster image
Xanthidium tenuissimum var. amazonenseKurt Förster Arch. Hydrobiol. Suppl. 60 (Algol. Stud. 28): 233 1981
Xanthidium tenuissimum var. constrictumK. Förster image
Xanthidium tenuissimum var. constrictumKurt Förster Arch. Hydrobiol. Suppl. 60 (Algol. Stud. 28): 233 1981
Xanthidium tetracanthumW.B. Turner image
Xanthidium tetracentrotum f. protuberansWest & G.S. West image
Xanthidium tetracentrotumF. Wolle image
Xanthidium tetracentrotum var. hexagonumG.M. Smith image
Xanthidium tetracentrotum var. murrayi(West & G.S. West) K. Förster image
Xanthidium tetracentrotum var. quadricornutum(J. Roy & J. Bisset) West & G.S. West image
Xanthidium thomassoniiP. Coesel & A. Van Geest in Van Geest & Coesel Fottea 12: 103, figs. 28, 29 2012
Xanthidium tirthalliense f. incrassatumG.R. Hegde & S.W. Isaacs The Journal of the Bombay Natural History Society 86: 90, fig. 4 1989
Xanthidium torquatumTurner Alg. Ind. orient: 102, pl. XXII: fig. 8 1893
Xanthidium torquatumW.B. Turner image
Xanthidium torreyiF. Wolle image
Xanthidium triangulareY. Okada Bull. Biogeogr. Soc. Japan 4: 361 1934 (iii)
Xanthidium trilobumC.F.O. Nordstedt image
Xanthidium trilobum f. polymorphum_('polymorpha')P. Bourrelly image
Xanthidium trilobum var. indicumN. Carter image
Xanthidium trilobum var. laeveE.J. Lemmermann image
Xanthidium trispinatum(West & G.S. West) G. Deflandre image
Xanthidium tropicumC.J. Bernard image
Xanthidium truncatum(W.N. Hastings) W.N. Hastings image
Xanthidium tubiferumC.G. Ehrenberg image
Xanthidium tubiferum subsp. complexH.H. White image
Xanthidium tubiferum subsp. palmaformeH.H. White image
Xanthidium tubiferum subsp. palmatumH.H. White image
Xanthidium tubiferum subsp. recurvatumH.H. White image
Xanthidium tubiferum subsp. simplexH.H. White image
Xanthidium tumidum(Brébisson ex Ralfs) J. Stastny, P. Skaloud & J. Neustupa in Stastny et al. J. Phycol. 49: 414 2013
Xanthidium tylerianumWest image
Xanthidium uncinatum(Brébisson ex Ralfs) J. Stastny, P. Skaloud & J. Neustupa in Stastny et al. J. Phycol. 49: 414 2013
Xanthidium uncinatumL.A. Brebisson image
Xanthidium urniforme(West & G.S. West) A.M. Scott & H.T. Croasdale image
Xanthidium urniforme f. protractum_('protracta')(R. Gutwinski) H.T. Croasdale image
Xanthidium urniforme var. glabrum(C.C. Jao) H.T. Croasdale image
Xanthidium variabile(C.F.O. Nordstedt) West & G.S. West image
Xanthidium variabile var. complexumWest & G.S. West image
Xanthidium variabile var. scabrumH.L. Skuja image
Xanthidium verrucosumM.A. Santos, G.J.P. Ramos & C.W.N. Moura in Moura et al. Phytotaxa 536: 239, figs. 7, 55-65 2022
Xanthidium vestitumH.H. White image
Xanthidium wewahitchkenseA.M. Scott & R.L. Grönblad image
Xanthidium wewahitchkense var. nordstedtiiA.M. Scott & R.L. Grönblad image
Xanthidium zhejiangenseY. Wei Chin. J. Oceanol. & Limnol. 9: 268, pl. VI: fig. 4 1991
Xanthidium zhejiangenseY.-X. Wei J. Phycol. 24(suppl.): 7 1988