Index Nominum Algarum Image Index
746 CARD IMAGES
beginning with COELARTHRUM F.C.E. B\'f8rgesen
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Processed by T. Rosatti
- COELARTHRUM F.C.E. Børgesen
- Coelarthrum albertisii (Piccone) Børgesen
- Coelarthrum boergesenii Weber Bosse
- Coelarthrum boergesenii f. minimum_('minima') Weber-van Bosse
- Coelarthrum cliftonii ('cliftoni') (Harvey) Kylin
- Coelarthrum coactum Okamura & Segawa
- Coelarthrum decumbens J.M. Huisman
- Coelarthrum lomentariae Tanaka & K. Nozawa
- Coelarthrum mortensenii Børgesen
- Coelarthrum muelleri (Sonder) Børgesen
- Coelarthrum opuntia (J. Agardh) Børgesen
- COELASTRELLA R. Chodat
- Coelastrella coelastroides Kalina
- Coelastrella compacta Skuja
- Coelastrella costata (Korshikov) Kalina
- Coelastrella levicostata Korshikov
- Coelastrella multistriata (H. Trenkwalder) T. Kalina & M. Puncochárová
- Coelastrella multistriata var. corcontica T. Kalina & M. Puncochárová
- Coelastrella striolata Chodat
- Coelastrella striolata var. compacta (Skuja) Kalina
- Coelastrella striolata var. corcontica Havránková & Kalina
- COELASTROPSIS B. Fott
- COELASTROPSIS Fott & Kalina
- Coelastropsis bohlinii (Schmidle & Senn) Fott
- Coelastropsis costata (Korshikov) Fott & Kalina
- COELASTRUM C.W. Nägeli
- COELASTRUM Nägeli ex Kützing
- COELASTRUM \{also on card: sections by Wille, Senn\}
- COELASTRUM \{also on card: sections by Wille, Rayss\}
- Coelastrum altaicum Skvortsov
- Coelastrum astroideum De Notaris
- Coelastrum augustae Skuja
- Coelastrum augustae var. armatum Skuja
- Coelastrum bohlinii ('bohlini') Schmidle & Senn
- Coelastrum bohlinianum Comas Gonzalez
- Coelastrum cambricum Archer
- Coelastrum cambricum var. collifer Kammerer
- Coelastrum cambricum var. cristatum ('cristata') Kammerer
- Coelastrum cambricum var. cruciatum ('cruciata') Kammerer
- Coelastrum cambricum var. elegans Schröter
- Coelastrum cambricum var. inappendiculatum Guglielmetti
- Coelastrum cambricum var. indicum (W. Turner) Bourrelly
- Coelastrum cambricum var. intermedium (Bohlin) G. S. West
- Coelastrum cambricum var. nasutum (Schmidle) G. S. West
- Coelastrum cambricum var. pulchrum (Schmidle) Schröter
- Coelastrum cambricum var. quinqueradiatum Lemaire
- Coelastrum cambricum var. rugosum Rich
- Coelastrum cambricum var. smithii Lefèvre & Bourrelly
- Coelastrum cambricum var. stuhlmannii ('stuhlmanni') (Schmidle) Ostenfeld
- Coelastrum cambricum f. typicum ('typica') [Kammerer]
- Coelastrum carpaticum Hindák
- Coelastrum chodatii ('chodati') Ducellier
- Coelastrum compositum G.S. West
- Coelastrum conglomeratum (H. Alten) Steinecke
- Coelastrum cornutum Lemaire
- Coelastrum costatum Korshikov
- Coelastrum crenatum var. cubicum Playfair
- Coelastrum cruciatum Schmidle
- Coelastrum cubicum Nägeli
- Coelastrum cubicum Nägeli ex Kützing
- Coelastrum distans W.B. Turner
- Coelastrum echinatum Svirenko
- Coelastrum giganteum Cedergren
- Coelastrum howardii Prescott
- Coelastrum humicola Gistl
- Coelastrum indicum W. B. Turner
- Coelastrum irregulare Schröder
- Coelastrum microporum Nägeli
- Coelastrum microporum f. astroideum ('astroidea') (De Notaris) Nygaard
- Coelastrum microporum var. cruciatum (Schmidle) Schmidle
- Coelastrum microporum var. intermedium (Bohlin) Schmidle
- Coelastrum microporum var. pulchrum (Schmidle) Schmidle
- Coelastrum microporum var. speciosum Wolle
- Coelastrum microporum var. verrucosum Chernov
- Coelastrum microporum f. irregulare F.E. Fritsch
- Coelastrum microsporum var. speciosum Wolle, info.
- Coelastrum morus W. West & G.S. West
- Coelastrum intermedium (Bohlin) Korshikov
- Coelastrum morus f. acutiverrucosum P. Bourrelly
- Coelastrum morus f. capense ('capensis') Fritsch
- Coelastrum naegelii Rabenhorst
- Coelastrum octaëdricum Skuja
- Coelastrum palii Venkataraman & Goyal
- Coelastrum polychordum (Korshikov) Hindák
- Coelastrum printzii Rayss
- Coelastrum printzii Rayss
- Coelastrum proboscideum Bohlin
- Coelastrum proboscideum var. dilatatum Vischer
- Coelastrum proboscideum var. gracile Vischer
- Coelastrum proboscideum var. pseudocubicum (Schroeder) Chodat
- Coelastrum proboscideum var. rugulosum Thomasson
- Coelastrum pseudocubicum Schröder
- Coelastrum pseudomicroporum Korshikov
- Coelastrum pulchrum Schmidle
- Coelastrum pulchrum Schmidle
- Coelastrum pulchrum var. elegans (Schröter) Amberg
- Coelastrum pulchrum var. intermedium Bohlin
- Coelastrum pulchrum var. mammillatum Bohlin
- Coelastrum pulchrum var. nasutum Schmidle
- Coelastrum quadricellulare K. Behre
- Coelastrum reticulatum (Dangeard) Senn
- Coelastrum reticulatum (Dangeard) Lemmermann
- Coelastrum reticulatum var. conglomeratum ('conglomerata') Alten
- Coelastrum reticulatum var. cubanum Komárek
- Coelastrum reticulatum (P.A. Dangeard) G. Senn f. duplex P. Compère
- Coelastrum reticulatum var. duplex (P. Compère) A. Comas
- Coelastrum reticulatum var. polychordum Korshikov
- Coelastrum reticulatum var. verrucosum Huber-Pestalozzi
- Coelastrum robustum Hantzsch
- Coelastrum robustum var. confertum W. West & G. S. West
- Coelastrum scabrum P.F. Reinsch
- Coelastrum scabrum f. majus Beck-Mannagetta
- Coelastrum schizodermaticum F. Rich
- Coelastrum shensiense Jao
- Coelastrum skujae Korshikov
- Coelastrum sphaericum Nägeli
- Coelastrum sphaericum Nägeli ex Kützing
- Coelastrum sphaericum var. astroideum (De Notaris) Guglielmetti
- Coelastrum sphaericum var. compactum ('compacta') Möbius
- Coelastrum sphaericum var. punctatum Lagerheim
- Coelastrum sphaericum var. subpulchrum (Lagerheim) Schmidle
- Coelastrum stuhlmannii ('stuhlmanni') Schmidle
- Coelastrum subpulchrum Lagerheim
- Coelastrum subpulchrum f. distans (W. B. Turner) Schmidle
- Coelastrum subpulchrum f. indicum ('indica') (W. B. Turner) Schmidle
- Coelastrum tallonii Bourrelly
- Coelastrum tricuspidatum Borge
- Coelastrum verrucosum Reinsch
- Coelastrum verrucosum f. acutiverrucosum (P. Bourrelly) A. Comas
- Coelastrum verrucosum f. morus (W. West & G.S. West) A. Comas
- COELOCHONDRIA P. Falkenberg \{also on card: Subgenus of Chondria\}
- COELOCLADIA J.L.A.K. Rosenvinge
- Coelocladia arctica Rosenvinge
- COELOCLONIUM J. Agardh
- COELOCLONIUM \{also on card: subgenus Dolichoschelis J. Agardh\}
- Coeloclonium claviferum J. Agardh
- Coeloclonium debile_('debilis') (Harvey) Gordon-Mills & Womersley
- Coeloclonium gracilipes J. Agardh
- Coeloclonium incrassatum J. Agardh
- Coeloclonium majus ('major') (Sonder) P.C. Silva
- Coeloclonium opuntioides (Harvey) J. Agardh
- Coeloclonium umbellatum ('umbellata') J. Agardh
- Coeloclonium umbellula (Harvey) Reinbold
- Coeloclonium verticillatum ('verticillata') (Harvey) J. Agardh
- COELOCYSTIS Nägeli
- Coelocystis kuetzingiana Nägeli
- COELODICTYON F.T. Kützing
- Coelodictyon zanardinianum Kützing
- COELODISCUS C.C. Jao
- Coelodiscus endophytus (Möbius) van den Hoek
- Coelodiscus prasinus C.C. Jao
- Coelodiscus prasinus var. bullatus (Jao) Printz
- COELOMONAS F. Stein
- Coelomonas grandis (C.G. Ehrenberg) F. Stein
- COELOMORON H.F. Buell
- Coelomoron minimum_('minimus') (Bernard) J. Komárková-Legnerová & R. Tavera
- Coelomoron regulare_('regularis') H.F. Buell
- COELOPELTIS W.F.R. Suringar \{also on card: Section of Gloeopeltis\}
- COELOSEIRA G.J. Hollenberg
- Coeloseira compressa G. J. Hollenberg
- Coeloseira pacifica Dawson
- Coeloseira parva G. J. Hollenberg
- Coeloseira trichodes C. Pujals
- COELOSIPHONIA F.T. Kützing \{also on card: sectio of Polysiphonia\}
- COELOSPHAERIDIUM Roemer
- Coelosphaeridium cyclocrinophilum Roemer
- COELOSPHAERIOPSIS E.J. Lemmermann
- Coelosphaeriopsis halophila Lemmermann
- COELOSPHAERIUM C.W. Nägeli
- COELOSPHAERIUM (Nägeli) Elenkin \{also on card: Subgenus Gomphosphaeria\}
- Coelosphaerium aerugineum Lemmermann
- Coelosphaerium anomalum (Bennett) De Toni & Levi
- Coelosphaerium anomalum var. aerugineum (Lemmermann) Hansgirg
- Coelosphaerium benticum Pshenin
- Coelosphaerium chlamydocystis Skuja
- Coelosphaerium collinsii Drouet & Daily
- Coelosphaerium compositum Liebetanz
- Coelosphaerium confertum West & G.S. West
- Coelosphaerium dicksonii ('dicksoni') Archer
- Coelosphaerium dubium Grunow in litt.
- Coelosphaerium dubium Grub. f. majus ('major') Thomasson
- Coelosphaerium geitleri Schiller
- Coelosphaerium genuense (De Notaris) Ardissone & Strafforello
- Coelosphaerium goetzei Schmidle
- Coelosphaerium halophilum (Lemmermann) Geitler
- Coelosphaerium holopediforme Schmidle
- Coelosphaerium hungaricum Hortobágyi
- Coelosphaerium kuetzingianum (Nägeli) Nägeli
- Coelosphaerium kuetzingianum var. minutissimum (Lemmermann) Bachmann
- Coelosphaerium kuetzingianum var. punctatum_('punctata') (Nägeli ex Ku\*:tzing) Playfair
- Coelosphaerium lacustre (Chodat) Ostenfeld
- Coelosphaerium leloupii ('leloupi') Kufferath
- Coelosphaerium levanderi Järnefelt
- Coelosphaerium limnicola ('limnicolum') J.W.G. Lund
- Coelospherium minutissimum Lemmermann
- Coelosphaerium minutissimum f. definitum Skuja \{also on card: [provisional] or uncertain\}
- Coelosphaerium minutissimum var. liliaceum Kufferath
- Coelosphaerium naegelianum Unger
- Coelosphaerium naegelianum var. lemmermannii ('Lemmermanni') Elenkin & Hollerbach
- Coelosphaerium natans E.J. Lemmermann
- Coelosphaerium pallidum Lemmermann
- Coelosphaerium pallidum var. minimum Lemmermann
- Coelosphaerium punctiferum J. Komárek & J. Komárková-Legnerová
- Coelosphaerium pusillum Van Goor
- Coelosphaerium radiatum G.M. Smith
- Coelosphaerium reticulatum (Lemmermann) Lemmermann
- Coelosphaerium roseum Snow
- Coelosphaerium wichurae Hilse
- Coelosphaerium wichurae Hilse
- COELOSPORELLA A. Wood
- Coelosporella jonesii A. Wood
- Coelosporella wetheredii A. Wood
- COELOTHRIX F.C.E. Børgesen
- Coelothrix indica Børgesen
- Coelothrix irregularis (Harvey) Børgesen
- COELOTRICHOMASTIX A. Hollande
- Coelotrichomastix convexa Hollande
- COELOTROCHIUM C.A.J. Schlüter
- Coelotrochium dechenii ('Decheni') Schlüter
- COENOBIODISCUS A.R. Loeblich III, W.W. Wight & W.M. Darley
- Coenobiodiscus muriformis A.R. Loeblich III, W.W. Wight & W.M. Darley
- COENOCHLORIS A.A. Korshikov
- Coenochloris astroidea Hindák
- Coenochloris asymmetrica F. Hindák
- Coenochloris bavarica (Skuja) Hindák
- Coenochloris bilobata (Broady) Hindák
- Coenochloris diplococca Hindák
- Coenochloris granulata Krienitz
- Coenochloris helvetica Hindák
- Coenochloris hindakii Komárek
- Coenochloris korshikovii ('korsikovii') Hindák
- Coenochloris mucolamellata A. Comas
- Coenochloris mucosa (Korshikov) Hindák
- Coenochloris ovalis Korshikov
- Coenochloris pelagica (Teiling) Fott
- Coenochloris piscinalis Fott invalid
- Coenochloris planctonica (W. West & G. S. West) Hindák
- Coenochloris planoconvexa Hindák
- Coenochloris polycocca (Korshikov) Hindák
- Coenochloris pringsheimii Bourrelly
- Coenochloris pseudoquadriguloides Tell
- Coenochloris pyrenoidosa Korshikov
- Coenochloris pyrenoidosa var. minor Tell
- Coenochloris signiensis (Broady) Hindák
- Coenochloris sphagnicola Hindák
- COENOCOCCUS A.A. Korshikov
- Coenococcus apyrenoidosus F. Hindák
- Coenococcus fottii Hindák
- Coenococcus granuliferus Hindák
- Coenococcus mollenhaueri Hindák
- Coenococcus nygaardii (Komárek) Hindák
- Coenococcus pelagicus (Teiling) J. W. G. Lund
- Coenococcus planctonicus Korshikov
- Coenococcus polycoccus (Korshikov) Hindák
- Coenococcus tetrasporus (Komárek) Hindák
- Coenococcus tinsii Hindák
- COENOCOLEUS Berkeley & G.H.K. Thwaites
- Coenocoleus cirrhosus Berkeley & Thwaites
- Coenocoleus smithii Berkeley & Thwaites
- COENOCYSTIS A.A. Korshikov
- Coenocystis asymmetrica Komárek
- Coenocystis estheriana (Hortobágyi) Hajdu
- Coenocystis helvetica (Hindák) Hindák
- Coenocystis hercynica (Heynig) Hindák
- Coenocystis mambetalievae Ergashev invalid
- Coenocystis micrococca Komárek
- Coenocystis obtusa Korshikov
- Coenocystis oleifera (Broady) Hindák
- Coenocystis planctonica Korshikov
- Coenocystis planctonica var. hercynica (Heynig) Fott
- Coenocystis planoconvexa (Hindák) Hindák
- Coenocystis quadriguloides Fott
- Coenocystis reniformis Korshikov
- Coenocystis reniformis var. tiszae Uherkovich
- Coenocystis stellata Hindák
- Coenocystis subcylindrica Korshikov
- Coenocystis tapasteana Komárek
- COENOGONIUM C.G. Ehrenberg
- Coenogonium deplanatum A. Krempelhuber
- Coenogonium dialeptum W. Nylander
- Coenogonium diffractum A. Krempelhüber
- Coenogonium effusum A. Krempelhuber
- Coenogonium linkii C.G. Ehrenberg
- Coenogonium rigidulum J. Müller
- COENOLAMELLUS A.I. Proshkina-Lavrenko
- Coenolamellus botryoideus Proshkina-Lavrenko
- COHNIDONUM C.E.O. Kuntze
- Cohnidonum dichotomum (Cohn) O. Kuntze
- COHNIELLA J.L.B. Schröder
- COHNIELLA (Schröder) Komárek \{also on card: section of Tetrastrum\}
- COHNIELLA \{also on card: subgenera by Lemmermann\}
- Cohniella irregularis (Wille) Lemmermann
- Cohniella staurogeniaeformis Schröder (CAS)
- COHNISTREPTOTHRIX P.E. Pinoy
- COHNISTREPTOTHRIX Pinoy
- Cohnistreptothrix foersteri (Cohn) Pinoy
- Cohnistreptothrix israeli (Kruse) Pinoy
- COILODESME H.F.G. Strömfelt
- Coilodesme amplissima Setchell
- Coilodesme bulligera H.F.G. Strömfelt
- Coilodesme bulligera f. fucicola K. Yendo
- Coilodesme bulligera f. ruprechtii E. S. Sinova
- Coilodesme californica (F.J. Ruprecht) F.R. Kjellman
- Coilodesme corrugata Setchell & Gardner
- Coilodesme cystoseirae (F.J. Ruprecht) Setchell & Gardner
- Coilodesme fucicola (K. Yendo) M. Nagai
- Coilodesme japonica Yamada
- Coilodesme linearis Saunders
- Coilodesme linearis Saunders
- Coilodesme plana Hollenberg & Abbott
- Coilodesme polygnampta Setchell & Gardner
- Coilodesme rigida Setchell & Gardner
- Coilodesme sitchensis Setchell & Gardner
- COILONEMA J.E. Areschoug
- COILONEMA (J. E. Areschoug) J. E. Areschoug \{also on card: subgen. of Dictyosiphon\}
- COILONEMA (J. E. Areschoug) J. E. Areschoug \{also on card: subgenus of Dictyosiphon\}
- Coilonema chordaria (J. E. Areschoug) J. E. Areschoug
- Coilonema chordaria f. decipiens Strömfelt
- Coilonema chordaria subsp. gelatinosum Strömfelt
- Coilonema chordaria f. robustum_('robusta') Strömfelt
- Coilonema chordaria var. simpliciusculum_('simpliciuscula') J.E. Areschoug
- Coilonema chordaria f. simpliciusculum_('simpliciuscula') (J.E. Areschoug) Strömfelt
- Coilonema filiforme_('filiformis') Foslie
- Coilonema mesogloia J. E. Areschoug
- COLACIUM C.G. Ehrenberg
- Colacium aequabile C.G. Ehrenberg
- Colacium arbuscula F. Stein
- Colacium arbuscula f. coloratum ('colorata') N.N. Woronichin & T.G. Popova
- Colacium arcuatum G.I. Playfair
- Colacium calvum F. Stein
- Colacium cyclopicola (J. Gicklhorn) N.N. Woronichin & T.G. Popova
- Colacium elongatum G.I. Playfair
- Colacium epiphyticum F.E. Fritsch
- Colacium gojdiscae (G.W. Prescott) G.E. Huber-Pestalozzi
- Colacium hyalinum L.K. Schmarda
- Colacium libellae J.R. Rosowski & R.L. Willey
- Colacium minimum B. Fott & J. Komárek
- Colacium mucronatum P. Bourrelly & M. Chadefaud
- Colacium ovale G.I. Playfair
- Colacium parasiticum (D. Sokoloff) G.E. Huber-Pestalozzi
- Colacium physeter (B. Fott) B. Fott
- Colacium sanguinea J.B. Lackey
- Colacium sideropus H.L. Skuja
- Colacium simplex G.E. Huber-Pestalozzi
- Colacium steinii W.S. Kent
- Colacium stentorinum C.G. Ehrenberg
- Colacium trachelomonoides B.V. Skvortsov
- Colacium vesiculosum C.G. Ehrenberg
- Colacium vesiculosum f. arbuscula (F. Stein) G.E. Huber-Pestalozzi
- Colacium vesiculosum var. natans E.J. Lemmermann
- Colacium vesiculosum f. natans (E.J. Lemmermann) N.N. Woronichin & T.G. Popova
- COLACODASYA F. Schmitz
- Colacodasya californica Hollenberg
- Colacodasya sinicola Setchell & Gardner
- Colacodasya verruciformis ('verrucaeformis') Setchell & M. E. McFadden
- COLACODICTYON J. Feldmann
- COLACODICTYON J. Feldmann
- Colacodictyon reticulatum (Batters) J. Feldmann
- Colacodictyon reticulatum (Batters) J. Feldmann
- COLACOLEPIS F. Schmitz
- Colacolepis aggregatus (Schmitz) Fritsch (in syn.)
- Colacolepis decipiens F. Schmitz
- Colacolepis incrustans F. Schmitz
- Colacolepis peltiformis ('peltaeformis') (Schmitz) Fritsch {in syn.}
- COLACONEMA E.A.L. Batters
- COLACONEMA Schmitz
- Colaconema americanum ('americana') Chin-Chih Jao
- Colaconema asparagopsis Chemin
- Colaconema asparagopsidis Chemin
- Colaconema attenuatum (Rosenvinge) R. Nielsen
- Colaconema bonnemaisoniae Batters
- Colaconema botryocarpum ('botryocarpa') (Harvey) H. Stegenga \{pcs\}
- Colaconema caespitosum (J. Agardh) J.J. Jackelman, H.S. Stegenga, & J.J. Bolton
- Colaconema chylocladiae Batters
- Colaconema conchicola Lami
- Colaconema daviesii (Dillwyn) H.S. Stegenga
- Colaconema deliseae Levring
- Colaconema emergens (Rosenvinge) R. Nielsen
- Colaconema furcatum ('furcata') Tanaka
- Colaconema gynandrum (Rosenvinge) R. Nielsen
- Colaconema humile ('humilis') (Rosenvinge) Woelkerling
- Colaconema infestans (Howe & Hoyt) Woelkerling
- Colaconema macula (Rosenvinge) Woelkerling
- Colaconema membranaceum ('membranacea') (Magnus) Woelkerling
- Colaconema minimum ('minima') (Collins) Woelkerling
- Colaconema monorhizum ('monorhiza') H. Stegenga \{pcs\}
- Colaconema nakamurae_('nakamurai') Woelkerling
- Colaconema nemalionis (De Notaris) H. Stegenga
- Colaconema pacificum ('pacifica') (J.H. Kylin) W.J. Woelkerling
- Colaconema phacelorhizum ('phacelorhiza') Woelkerling
- Colaconema plumosum ('plumosa') (Drew) Woelkerling
- Colaconema polyidis (Rosenvinge) Woelkerling
- Colaconema porphyrae (Drew) Woelkerling
- Colaconema pulvinatum Schmitz
- Colaconema reticulatum Batters
- Colaconema savianum (Meneghini) R. Nielsen
- Colaconema secundatum ('secundata') (Lyngbye) Woelkerling
- Colaconema seriatum ('seriata') (Børgesen) H. Stegenga \{pcs\}
- Colaconema simplex Inagaki
- Colaconema spiculiphilum ('spiculiphila') (Dawson) Woelkerling
- Colaconema spongicola ('spongiocola') (Weber Bosse) Woelkerling
- Colaconema strictum (Rosenvinge) R. Nielsen
- Colaconema tenuissimum ('tenuissima') (Collins) Woelkerling
- COLACOPSIS De Toni
- Colacopsis lophurellae Kylin
- Colacopsis pulvinata (Schmitz) De Toni
- Colacopsis smitheniae ('smithenae') R. E. Norris
- Colacopsis velutina (Martin & Pocock) R. E. Norris
- COLEMANIA B.V. Skvortsov & M. Noda
- Colemania mayaccae Skvortsov & Noda
- Colemania verrucosa Skvortsov & Noda
- COLEOCHAETE L.A. Brébisson
- Coleochaete andreae H. Szymanska
- Coleochaete arundinacea (J.P.F.C. Montagne) G.L. Rabenhorst
- Coleochaete baileyi K. Möbius
- Coleochaete circularis H. Szymanska
- Coleochaete conchata K. Möbius
- Coleochaete conchata var. brevicellularis (W. Schmidle) K.H.O. Printz
- Coleochaete decorans Richter
- Coleochaete decorans var. cingens Richter
- Coleochaete divergens N. Pringsheim
- Coleochaete divergens subsp. catharactarum N.G. Lagerheim
- Coleochaete echinocystis H. Szymanska
- Coleochaete helicoidea W.B. Turner
- Coleochaete ikerasacensis Richter
- Coleochaete irregularis N. Pringsheim
- Coleochaete irregularis var. minor B.V. Skvortsov
- Coleochaete irregularis var. nitellarum (L. Jost) E.C. Teodoresco
- Coleochaete javanica De Wildeman
- Coleochaete leve (Bailey) P. Sarma & V.J. Chapman
- Coleochaete disjuncta Tiffany
- Coleochaete orbicularis N. Pringsheim
- Coleochaete orbicularis f. crassa Y. Bharadwaja
- Coleochaete pisiformis (Roth) J.E. Gray
- Coleochaete prostrata F.T. Kützing
- Coleochaete pseudosoluta ('pseudo-soluta') L.E. Gauthier-Lièvre
- Coleochaete pulchella (F.T. Kützing) G.L. Rabenhorst
- Coleochaete pulvinata A.K.H. Braun ex F.T. Kützing
- Coleochaete pulvinata var. baileyi (K. Möbius) K.H.O. Printz
- Coleochaete pulvinata f. major N. Pringsheim
- Coleochaete pulvinata f. minor N. Pringsheim
- Coleochaete pulvinata var. minor Pascher
- Coleochaete pulvinata f. pumila G.R. Cedergren
- Coleochaete reticulata C. Hoek
- Coleochaete sampsonii E.N. Transeau
- Coleochaete scutata L.A. Brébisson
- Coleochaete scutata f. lobata F. Brand
- Coleochaete scutata f. minor K. Möbius
- Coleochaete scutata var. reticulata C.C. Jao
- Coleochaete scutata var. soluta L.A. Brébisson
- Coleochaete scutata var. soluta Kützing
- Coleochaete sieminskiana H. Szymanska
- Coleochaete soluta (L.A. Brébisson) N. Pringsheim
- Coleochaete soluta var. brevicellularis W. Schmidle
- Coleochaete tuberculata J.E. Gray
- COLEOCHLAMYS A.A. Korshikov
- Coleochlamys apoda Korshikov
- Coleochlamys cucumis (H. Reisigl) H. Ettl & G. Gärtner
- Coleochlamys maxima (S. Watanabe) H. Ettl & G. Gärtner
- Coleochlamys oleifera (Schussnig) Fott
- Coleochlamys perforata (K. W. Lee & H. C. Bold) H. Ettl & G. Gärtner
- COLEODESMIUM A. Borzì
- COLEODESMIUM Borzì ex Geitler
- Coleodesmium floccosum Borzì
- Coleodesmium floccosum (Bornet & Flahault) Geitler
- Coleodesmium kerguelensis Thérézien & Couté invalid
- Coleodesmium lievreae (Frémy) Geitler
- Coleodesmium scottianum Welsh
- Coleodesmium swazilandicum Walsh
- Coleodesmium wrangelii (C. Agardh) Borzì
- Coleodesmium wrangelii (Bornet & Flahault) Geitler
- COLEODESMIUMOPSIS A.K. Dutt, S. Datta, & A.B. Gupta
- Coleodesmiumopsis fremyi Dutt, Datta, & Gupta
- COLEONEMA Duboscq & P.-P. Grassé
- Coleonema arenifera Schousboe
- Coleonema ostreae Schousboe
- Coleonema pruvotiae ('pruvoti') Duboscq & Grassé
- Coleonema smithii Thwaites [mss]
- COLEOSPERMUM Loubière
- COLEOSPERMUM Kirchner
- COLEOSPERMUM Kirchner ex Frank
- Coleospermum goeppertianum Kirchner
- Coleospermum goeppertianum ('göppertianum') Kirchner ex Frank
- COLLARECODIUM R. Brandner & W. Resch
- Collema pannosum G.F. Hoffmann
- COLLENELLA J.H. Johnson
- Collenella guadalupensis J. H. Johnson
- COLLENIA C.D. Walcott
- Collenia albertensis C.L. Fenton & M. A. Fenton
- Collenia angarica Maslov
- Collenia asiatica Maslov
- Collenia baicalica Maslov
- Collenia biwabikensis F. F. Grout & Broderick
- Collenia buriatica Maslov
- Collenia clappii C. L. Fenton & M. A. Fenton
- Collenia columnaris C. L. Fenton & M. A. Fenton
- Collenia columnaris var. thalkedarensis Misra & Kumar
- Collenia compacta Walcott
- Collenia expansa C. L. Fenton & M. A. Fenton
- Collenia ferrata F.F. Grout & Broderick
- Collenia frequens (Walcott) Walcott
- Collenia ilimica Maslov
- Collenia ilimica var. padunica Maslov
- Collenia inverta ('invertum') Banerjee
- Collenia katangica Maslov
- Collenia kavalkani Nuzhnov
- Collenia kona Twenhofel
- Collenia magna C. L. Fenton & M. A. Fenton
- Collenia milconi Nuzhnov
- Collenia multiflabella Rezak
- Collenia nailensis Misra & Kumar
- Collenia occidentalis ('occidentale') (W. Dawson) Walcott
- Collenia okunaika Maslov
- Collenia omachtensis Nuzhnov
- Collenia paliensis Misra & Kumar
- Collenia parva C. L. Fenton & M. A. Fenton
- Collenia problematica Maslov
- Collenia raintolensis Misra & Kumar
- Collenia saianica Maslov
- Collenia schamanica Maslov
- Collenia septentrionalis C. L. Fenton & M. A. Fenton
- Collenia spissa C. L. Fenton & M. A. Fenton
- Collenia symmetrica C. L. Fenton & M. A. Fenton
- Collenia tungusica Maslov
- Collenia turtschanensis Nuzhnov
- Collenia umbella Maslov
- Collenia undosa Walcott
- Collenia versiformis C. L. Fenton & M. A. Fenton
- Collenia willisii C. L. Fenton & M. A. Fenton
- COLLETONEMA L.A. Brébisson ex F.T. Kützing
- COLLETONEMA (Brébisson) Schütt \{also on card: Section of subgen. Navicula, Navicula\}
- COLLETONEMA (Brébisson) H. Van Heurck
- Colletonema americanum (Ehrenberg) Kützing
- Colletonema amphioxys (Ehrenberg) Kützing (CAS)
- Colletonema bullosum Fiorini-Mazzanti
- Colletonema dubium Grunow (CAS)
- Colletonema exile Grunow
- Colletonema eximium (Thwaites) Kützing (CAS)
- Colletonema hibernicum O'Meara (CAS)
- Colletonema lacustre (C. Agardh) Kützing (CAS)
- Colletonema neglectum (Thwaites) W. Smith (CAS)
- Colletonema subcohaerens (Thwaites) W. Smith
- Colletonema sullivantia Hamilton L. Smith
- Colletonema viridulum Brébisson ex Kützing
- Colletonema vulgare (Thwaites) W. Smith (CAS)
- COLLINELLA J. Cachon
- Collinella ovoides Cachon
- COLLINSIA J.G. Agardh
- Collinsia californica J. Agardh
- COLLINSIELLA W.A. Setchell & N.L. Gardner
- Collinsiella tuberculata Setchell & Gardner
- Collinsiella tuberculata Setchell & Gardner
- COLLINSIELLOPSIS M. Chihara
- Collinsiellopsis expansa Chihara
- COLLODICTYON H.J. Carter
- Collodictyon hongkongense Skvortsov
- Collodictyon indicum Iyengar
- Collodictyon sparsevacuolatum Skuja
- Collodictyon sphaericum Norris
- Collodictyon triciliatum H. J. Carter
- Collodictyon triciliatum var. stigmata Wawrik
- COLLORHAPHIS C.G. Ehrenberg
- Collorhaphis sellenyi Ehrenberg
- COLLOSIGMA C.G. Ehrenberg
- Collosigma scherzeri C.G. Ehrenberg
- COLLOTONEMA \{also on card: see: Colletonema\}
- COLOPHERMUM C.S. Rafinesque
- Colophermum brachiatum Kuntze superfl.
- Colophermum breviarticulatum (J. Agardh) Kuntze
- Colophermum caespitulum (J. Agardh) Kuntze
- Colophermum crinitum (Carmichael) Kuntze
- Colophermum distortum (Carmichael) Kuntze
- Colophermum fasciculatum (Harvey) Kuntze
- Colophermum ferrugineum (Kützing) Kuntze
- Colophermum firmum (C. Agardh) Kuntze
- Colophermum floccosum Rafinesque
- Colophermum geminatum (J. Hooker & Harvey) Kuntze
- Colophermum granulosum (J. E. Smith) Kuntze
- Colophermum hincksiae (Harvey) Kuntze
- Colophermum litorale ('litoralis') (Linnaeus) Kuntze
- Colophermum minutulum (Montagne) Kuntze
- Colophermum monocarpum (C. Agardh) Kuntze
- Colophermum mertensii (Turner) Kuntze
- Colophermum nitens (De Notaris) Kuntze
- Colophermum paradoxum (Montagne) Kuntze
- Colophermum pusillum (Harvey) Kuntze
- Colophermum siliculosum (Dillwyn) Kuntze
- Colophermum sphaerophorus (Carmichael) Kuntze
- Colophermum spinulosum (Montagne) Kuntze
- Colophermum tomentosum (Hudson) Kuntze
- COLOSPIRONYMPHA L.R. Cleveland & M.F.C. Day
- Colospironympha agyra Cleveland & Day
- Colospironympha exigua Cleveland & Day
- Colospironympha cateia Cleveland & Day
- COLPOCOELIUM V.B.A. Trevisan de Saint-Léon
- COLPOCOELIUM Trevisan \{also on card: subgen. Scytosiphon\}
- Colpocoelium cavernosum (Forssk.) Trevisan
- COLPODELLA L. Cienkowski
- Colpodella pugnax Cienkowski
- COLPODASTRUM W.B. Turner \{also on card: subgenus of Euastrum\}
- COLPOMENIA (S.F.L. Endlicher) A.A. Derbès & A.J.J. Solier
- COLPOMENIA S.F.L. Endlicher \{also on card: [Section of] Asperococcus\}
- Colpomenia bullosa (D.A. Saunders) Y. Yamada
- Colpomenia bullosa (D.A. Saunders) C.K. Tseng & P.L. Cheng
- Colpomenia capensis Levring
- Colpomenia deformans Yamada
- Colpomenia ecuticulata Parsons
- Colpomenia mollis Taylor
- Colpomenia nainativensis Durairatnam
- Colpomenia peregrina C.F. Sauvageau
- Colpomenia peregrina (C.F. Sauvageau) Hamel
- Colpomenia phaeodactyla Wynne & J. Norris
- Colpomenia ramosa Taylor
- Colpomenia sinuata Derbès & Solier
- Colpomenia sinuosa Mertens ex [Roth] A.A. Derbès & A.J.J. Solier
- Colpomenia sinuosa f. deformans Setchell & Gardner
- Colpomenia sinuosa f. expansa D.A. Saunders
- Colpomenia sinuosa f. expansissima Setchell & Gardner
- Colpomenia sinuosa f. lacunosa Taylor
- Colpomenia sinuosa var. peregrina C.F. Sauvageau
- Colpomenia sinuosa f. tuberculata (D.A. Saunders) Setchell & Gardner
- Colpomenia stellata (Børgesen) Børgesen
- Colpomenia sinuosa f. typica Setchell & Gardner
- Colpomenia tuberculata D.A. Saunders
- COLPONEMA F. Stein
- COLPONEMA W.B. Turner \{also on card: subgenus of Onychonema\}
- Colponema agitans H. S. Davis
- Colponema globosum Faria, Cunha & Pinto
- Colponema loxodes Stein
- Colponema symmetricum_('symmetrica') Sandon
- Colpopelta deplanata A.K.J. Corda
- COLTERONEMA J.J. Copeland
- Colteronema funebre J. Copeland
- COLUMBIAPORA B.L. Mamet
- Columbiapora johnsonii ('johnsoni') Mamet
- COLUMNARIA A.G. Vologdin
- Columnaria angularis Vologdin
- Columnaria tenuifrugata Vologdin
- Columnaria turuchanica Vologdin
- COLVILLEA M. Black
- Colvillea barnesiae_('barnesae') (M. Black) M. Black
- Colvillea crucicentralis Prins
- Colvillea crucicentralis var. parva Prins
- COMASPHAERIDIUM F.L. Staplin, J. Jansonius, & S. Pocock
- Comasphaeridium caesariatum Wicander
- Comasphaeridium cometes (Valensi) Staplin, Jansonius, & Pocock
- Comasphaeridium denseprocessum F. Cramer & Díez
- Comasphaeridium hispidum De Coninck
- Comasphaeridium multispinosum (Pastiels) [De Coninck]
- Comasphaeridium muscosum R. Wicander & G. Playford
- Comasphaeridium pratulum F. Cramer & Díez
- Comasphaeridium tonsum F. Cramer & Díez
- Comasphaeridium whitei (Deflandre & Courteville) [De Coninck]
- COMETES H. Edsbagge
- Cometes clavata Edsbagge (CAS)
- Cometes globosa Edsbagge (CAS)
- COMETODINIUM Deflandre & H. Courteville
- Cometodinium obscurum Deflandre & Courteville
- Cometodinium whitei (Deflandre & Courteville) Stover & Evitt
- COMETOSPHAERIDIUM Deflandre mss
- COMPARODINIUM S.J. Morbey
- Comparodinium diacrorhaetium Morbey
- Comparodinium koessenium Morbey
- COMPSONEMA E.H.P. Kuckuck
- Compsonema chordae Noda
- Compsonema coccophorae Noda
- Compsonema coniferum Setchell & Gardner
- Compsonema dictyotoides Noda & Honda
- Compsonema dubium Setchell & Gardner
- Compsonema fasciculatum Setchell & Gardner
- Compsonema fructuosum Setchell & Gardner
- Compsonema gracile Kuckuck
- Compsonema immixtum Setchell & Gardner
- Compsonema intercalare Noda
- Compsonema intricatum Setchell & Gardner
- Compsonema liagorae Feldmann
- Compsonema maculans Kuckuck
- Compsonema microspongium (Batters) Kuckuck
- Compsonema minutum (C.A. Agardh) E.H.P. Kuckuck
- Compsonema myrionematoides Setchell & Gardner
- Compsonema nummuloides Setchell & Gardner
- Compsonema oblongum Noda
- Compsonema pusillum Setchell & Gardner
- Compsonema ramulosum Setchell & Gardner
- Compsonema saxicola (Kuckuck) Kuckuck
- Compsonema secundum Setchell & Gardner
- Compsonema secundum f. terminale Setchell & Gardner
- Compsonema serpens Setchell & Gardner
- Compsonema sessile Setchell & Gardner
- Compsonema speciosum (Børgesen) Setchell & Gardner
- Compsonema speciosum f. piliferum Setchell & Gardner
- Compsonema sporangiiferum Setchell & Gardner
- Compsonema streblonematoides Setchell & Gardner
- Compsonema tenue Setchell & Gardner
- COMPSOPOGON J.P.F.C. Montagne
- Compsopogon aeruginosus (J. Agardh) Kützing
- Compsopogon aeruginosus var. catenata_('catenatum') Yadava & D.C. Pandey
- Compsopogon argentinensis Pujals
- Compsopogon caeruleus ('caerulaeus') (C. Agardh) Montagne
- Compsopogon chalybeus Kützing
- Compsopogon corinaldii (Meneghini) Kützing
- Compsopogon corticrassus Chihara & T. Nakamura
- Compsopogon fruticosus Jao
- Compsopogon fuscatus Zanardini
- Compsopogon hookeri Montagne
- Compsopogon indicus ('indica') C.R. Das
- Compsopogon indicus Das
- Compsopogon iyengarii Krishnamurthy
- Compsopogon leptoclados Montagne
- Compsopogon lividus De Toni
- Compsopogon ludovicianus ('ludovicianum') L.H. Flint
- Compsopogon minutus Jao
- Compsopogon occidentalis Tracanna
- Compsopogon oishii Okamura
- Compsopogon prolificus Yadava & Kumano
- Compsopogon subsimplex Montagne
- COMPSOPOGONOPSIS Krishnamurthy
- Compsopogonopsis fruticosa (Jao) Seto
- Compsopogonopsis japonica Chihara
- Compsopogonopsis leptoclados (Montagne) Krishnamurthy
- COMPSOTEIA W.H. Harvey \{also on card: subgen. of Dasya\}
- COMPSOTHAMNION C.W. Nägeli \{also on card: subgenus (section p. 322) of Callithamnion\}
- COMPSOTHAMNION (Nägeli) Schmitz
- Compsothamnion decompositum (J. Agardh) C.A. Maggs & M.-T. L'Hardy-Halos
- Compsothamnion gracillimum Nägeli
- Compsothamnion thuioides_('thuyoides') (J.E. Smith) Nägeli
- Compsothamnion thuioides_('thuyoides') (J.E. Smith) Schmitz
- Compsothamnion thuioides var. subtilis Schiffner
- Compsothamnion truncatum (Meneghini) Nägeli
- COMPSOTHAMNIONELLA H. Itono
- Compsothamnionella huismanii E. Gordon-Mills & E.M. Wollaston
- Compsothamnionella japonica (Itono) Itono
- Compsothamnionella mageshimensis Itono
- Compsothamnionella sciadophila H. Stegenga
- COMPTALUTA H. Tappan & A.R. Loeblich Jr.
- Comptaluta pirellum Tappan & Loeblich Jr.
- CONCENTRICYSTES M. Rossignol
- Concentricystes rubinus Rossignol
- CONCENTRITES B.S. Venkatachala et al.
- Concentrites muricatus Venkatachala et al.
- CONCHOCELIS E.A.L. Batters
- Conchocelis rosea Batters
- CONCRESCERARIA A.G. Vologdin
- Concresceraria inflata Vologdin
- Concresceraria maculata Vologdin
- Concresceraria subrotunda Vologdin
- CONDEA \{also on card: subgenus of Batrachospermum Skuja\}