| Name | Author | Source | Citation | Year |
|---|
| CHARACIUM | A. Braun | image |
| CHARACIUM sect. | EUCHARACIUM Pascher | image |
| Characium acuminatum | A. Braun ex Kützing | Sp. alg.: | 892 | 1849 |
| Characium acuminatum | A. Braun ex Kützing | image |
| Characium acuminatum f. maius_('maior') | Peterfi | image |
| Characium acuminatum var. elegans | Kufferath | image |
| Characium acuminatum var. minus_('minor') | Nayal | image |
| Characium acutatum | Korshikov | image |
| Characium acutum | A. Braun | image |
| Characium ambiguum | Hermann | image |
| Characium ambiguum var. elongatum | Jao | image |
| Characium ambiguum var. rhaphidiforme | Rainhard | image |
| Characium ambiguum var. rhaphidiiforme | Reinhard | Trudy Obshch. Isp. Prir. Imp. Kha'rkovsk. Univ. | 4: 16, fig. 23 | 1872 |
| Characium ambiguum var. tenue | (Hermann) Riabinine | Bull. Soc. Imp. Naturalistes Moscou, ser. 2, | 2: 307 | 1888 |
| Characium ancora | (G.M. Smith) Fott | image |
| Characium angustum | Braun | image |
| Characium angustum f. minus_('minor') | S. Stockmayer in Beck & Zahlbruckner, | Annalen des Naturhistorischen Museums in Wien | 13: 456, figs. 1, 2 | 1898 |
| Characium angustum f. minus_('minor') | Stockmayer | image |
| Characium angustum var. exacuatum | Printz | image |
| Characium ankistrodesmiforme | Skvortzov | image |
| Characium anophelesi | M.O.P. Iyengar & M.O.T. Iyengar | image |
| Characium apiculatum | Chodat | image |
| Characium apiculatum | Rabenhorst | image |
| Characium apiculatum var. stipitata | Printz | image |
| Characium apiocystiforme | Hermann | image |
| Characium arizonicum | W.R. Taylor | image |
| Characium astipitatum | Metting | image |
| Characium asymmetricum | Korshikov | image |
| Characium bicaudatum | Woronikhin | image |
| Characium boldii | J.A. Rino | image |
| Characium boldii | J.A. Rino | Revista Ci. Biol., Fac. Ci. Univ. Lourenc\*,o Marques, A, | 5: 197 | 1972 |
| Characium braunii | Brugger | image |
| Characium braunii var. hungaricum | Kiss | image |
| Characium braunii var. minus_('minor') | Liebetanz | image |
| Characium brunnthaleri | Printz | image |
| Characium bulbosum | Korshikov | image |
| Characium bulgariense | K.W. Lee & Bold | image |
| Characium californicum | K.W. Lee & Bold | image |
| Characium californicum | K.W. Lee & H.C. Bold | Univ. Texas Publ. | 7403: 21, figs. 3, 36-47 | 1974 |
| Characium cerassiforme | Eichler & Raciborski | image |
| Characium cerassiforme var. minimum | Playfair | image |
| Characium chlamydopus | Hermann | image |
| Characium chrysopyxidis | Pascher | image |
| Characium clava | Hermann | image |
| Characium conicum | Korshikov | image |
| Characium coronatum | P.F. Reinsch | image |
| Characium cucurbitinum | Jao | image |
| Characium curvatum | G.M. Smith | image |
| Characium cylindricum | F.D. Lambert | Rhodora | 11: 70, pl. 79: figs. 1, 2, 7, 8, 10-13, 23-25 | 1909 |
| Characium cylindricum | Lambert ex Collins, Holden & Setchell | image |
| Characium debaryanum | (Reinsch) De Toni | image |
| Characium dyeri_('dyerii') | Reinsch | image |
| Characium elipticum | L. Reinhard | Bull. Soc. Imp. Nat. Moscou | 42: 477, fig. 1 | 1869 |
| Characium ensiforme | Hermann | image |
| Characium epipyxis | Hermann | image |
| Characium eurypus | Hermann | image |
| Characium falcatum | Schröder | image |
| Characium fusiforme | K.W. Lee & Bold | image |
| Characium gibbum | Braun | image |
| Characium giganteum | (Wolle) De Toni | image |
| Characium gracile | Naumann | image |
| Characium gracile | Schiller | image |
| Characium gracilipes | F.D. Lambert | Rhodora | 11: 65, pl. 79: figs. 3-6, 9, 14-22 | 1909 |
| Characium gracilipes | Lambert ex Collins, Holden & Setchell | image |
| Characium groenlandicum | Richter | image |
| Characium guttula | Playfair | image |
| Characium hagmeierianum | O.C. Schmidt | image |
| Characium heteromorphum | (Reinsch) Wolle | image |
| Characium hindakii | K.W. Lee & Bold | image |
| Characium hindakii | K.W. Lee & H.C. Bold | Univ. Texas Publ. | 7403: 24, figs. 5, 53-56. 204-208 | 1974 |
| Characium hookeri | (Reinsch) Hansgirg | image |
| Characium horizontale | A. Braun | Alg. unicell.: | 45, pl. V-E | 1855 |
| Characium horizontale | Braun | image |
| Characium indicum | R.J. Patel & Isabella | image |
| Characium inspersum | Beck-Mannagetta | image |
| Characium issaevi | Kiselev | image |
| Characium issaevii_('issaevi') | Kiselev | Trudy Sredne-Aziat. Gosud. Univ. [Tashkent], Geogr. | 9: 78, pl. 3: fig. 26; pl. 8: fig. 20 | 1931 |
| Characium issajewi | Kiselev | image |
| Characium judayi var. microspina | Hortobagyi | image |
| Characium judayi_('judai') | (G.M. Smith) Fott ex Hortobágyi | Egri Pedag. Föisk. Évkön. | 2: 604 | 1956 |
| Characium lanceolatum | O. Jaag | image |
| Characium limneticum | Lemmermann | image |
| Characium longipes | Rabenhorst | image |
| Characium longipes var. affine | L. Reinhard | Bull. Soc. Imp. Nat. Moscou | 42: 481, fig. 7b | 1869 |
| Characium lundii | Fott | image |
| Characium macrosporum | (Turner) Biswas | image |
| Characium marinum | Kjellman | image |
| Characium maximum | S. Watanabe | Arch. Protistenk. | 127: 240, figs. 10, 27-30 | 1983 |
| Characium michailovskoense | Elenkin | image |
| Characium michailovskoense var. angustius | Elenkin | Bot. Mater. Inst. Sporov. Rast. Glavn. Bot. Sada RSFSR | 3: 23 | 1924 |
| Characium minutum | A. Braun ex Kützing | image |
| Characium minutum var. disculiferum | Wittrock | image |
| Characium naegelii | A. Braun | image |
| Characium naegelii var. maius | Hansgirg | image |
| Characium nasutum | Rabenhorst | image |
| Characium natans | Svirenko | Trudy Gosud. Ikhtiol. Opytn. Stantsii | 6: 128, figs. 9-12 | 1931 |
| Characium obesum | W.R. Taylor | image |
| Characium obovatum | L. Reinhard | Bull. Soc. Imp. Nat. Moscou | 42: 478, fig. 3 | 1869 |
| Characium obovatum var. longipes | L. Reinhard | Bull. Soc. Imp. Nat. Moscou | 42: 478, fig. 3b | 1869 |
| Characium obtusellum | De Toni | image |
| Characium obtusum | Braun | image |
| Characium obtusum var. majus | Printz | image |
| Characium ocellatum | Korshikov | image |
| Characium operculum | Ackley | image |
| Characium orissicum | Philipose | image |
| Characium ornithocephalum | Braun | image |
| Characium ornithocephalum f. alpinum | Beck-Mannagetta | image |
| Characium ornithocephalum f. constrictum_('constricta') | Eichler | Pamietnik Fizyjograficzny | 14{Dzial 3}: 124, fig. 7 | 1896 |
| Characium ornithocephalum var. adolescens | Printz | image |
| Characium ornithocephalum var. constrictum | Eichler | image |
| Characium ornithocephalum var. harpochytriiforme_('Harpochytriiformis') | Printz | image |
| Characium ornithocephalum var. longisetum | H. Ettl | image |
| Characium ornithocephalum var. majus_(`major') | R.J. Patel & Isabella George | J. Indian Bot. Soc. | 59: 43, fig. 5 | 1980 |
| Characium ornithocephalum var. pringsheimii | (A. Braun) Komáek | image |
| Characium ovale | Sande Lacoste & Suringar | Ned. Kruidk. Arch. | 5: 273, pl.: C | 1861 |
| Characium ovatum f. minus | Hollerbach | image |
| Characium ovatum | L. Reinhard | Bull. Soc. Imp. Nat. Moscou | 42: 481, fig. 9 | 1869 |
| Characium oviforme | K.W. Lee & Bold | image |
| Characium oviforme | K.W. Lee & H.C. Bold | Univ. Texas Publ. | 7403: 25, figs. 6, 18, 57-72 | 1974 |
| Characium ovum | Matvienko | Trudy Nauch.-issl. Inst. Bot. Gorky Khark. State Univ. | 13: 177, fig. 43 | 1950 |
| Characium pachypus | Grunow | image |
| Characium pedicellatum | Hermann | image |
| Characium perforatum | K.W. Lee & Bold | image |
| Characium perforatum | K.W. Lee & H.C. Bold | Univ. Texas Publ. | 7403: 27, figs. 7, 73-88 | 1974 |
| Characium phascoides | Hermann | image |
| Characium phascoscelis | Itzigsohn | image |
| Characium philippinense | Behre | image |
| Characium planctonicum | Skuja | image |
| Characium pluricoccum | Korshikov | image |
| Characium polymorphum | F.R. Trainor & H.C. Bold | image |
| Characium polymorphum | F.R. Trainor & H.C. Bold | Amer. J. Bot. | 40: 763, figs. 42-58, 62, 63 | 1954 |
| Characium polymorphum | Printz | image |
| Characium pringsheimii | Braun | image |
| Characium pringsheimii f. minus_('minor') | Hortobagyi | image |
| Characium prodani | Peterfi | image |
| Characium pseudo-polymorphum | Philipose | image |
| Characium pseudopolymorphum_(`pseudo-polymorphum') | M.T. Philipose | Chlorococcales: | 86 | 1967 |
| Characium pseudopyriforme _('pseudo-pyriforme') | Philipose | image |
| Characium pyriforme | Braun | image |
| Characium pyriforme f. acuminatum_('acuminata') | Eichler | Pamietnik Fizyjograficzny | 14{Dzial 3}: 123, fig. 6 | 1896 |
| Characium pyriforme | J.W.G. Lund | image |
| Characium pyriforme var. acuminatum_('acuminata') | Eichler | image |
| Characium rabenhorstii | De Toni | image |
| Characium rostratum | L. Reinhard | Bull. Soc. Imp. Nat. Moscou | 42: 479, fig. 5 | 1869 |
| Characium rostratum | Reinhard | image |
| Characium saccatum | Filarszky in Hankó | Állatt. Közlem. | 9: 97, fig. 2 | 1910 |
| Characium salinum | Ivanov | Zapiski Zapadno-Sibirskogo Otde\*vla Imperatorskago Russkago Geograficheskago Obshchestva | 27: 116, fig. 1 | 1901 |
| Characium sarmae | R.S. Pandey & D.C. Pandey | image |
| Characium sarmae | R.S. Pandey & D.C. Pandey | Proc. 65th Indian Sc. Congr. [Ahmedabad, 1978]. Part III. Abstracts: Group C: | 5 | 1978 |
| Characium schweickerdtii | Cholnoky | image |
| Characium sessile | Hermann | image |
| Characium setiferum | Cortés Latorre | image |
| Characium setigerum | (Schroeder) Bourrelly | image |
| Characium setosum | Filarszky in Hankó | Allatt. Kozlem. | 9: 96, fig. 1 | 1910 |
| Characium sieboldii var. disculiferum_('disculifera') | Bohlin | image |
| Characium sieboldii var. parvulum | Skuja | image |
| Characium sieboldii var. simplex | (Korshikov) P.M. Tsarenko | Ukrainian Botanical Journal | 47{2}: 29 | 1990 |
| Characium sieboldii_('Sieboldi') | A. Braun ex Kützing | Sp. alg.: | 208 | 1849 |
| Characium sieboldii_('sieboldi') | A. Braun ex Kützing | image |
| Characium sikangense | Jao | image |
| Characium simplex | Korshikov | Protococcineae: | 166, fig. 112 | 1953 |
| Characium simplicissimum | Korshikov | image |
| Characium skujae | Fott | image |
| Characium spinulosum | Woloszynska | image |
| Characium starrii | Fott | image |
| Characium starrii | Fott | image |
| Characium stipitatum | (Bachmann) Wille | image |
| Characium strictum | Braun | image |
| Characium subsessile | (Wolle) De Toni | image |
| Characium substrictum | Jao | image |
| Characium subulatum | Braun | image |
| Characium subulatum f. gracilius_('gracilior') | Rabenhorst | image |
| Characium subulatum f. robustius_('robustior') | Rabenhorst | image |
| Characium tenue | Hermann in Rabenhorst | Beitr. Kenntn. Alg. | 1: 26, pl. VII: fig. 10 | 1863 |
| Characium tenue var. raphidiiforme | L. Reinhard | Bull. Soc. Imp. Nat. Moscou | 42: 482, fig. 12b | 1869 |
| Characium terrestre_('terrestris') | Kanthamma | image |
| Characium transvaalense | Cholnoky | image |
| Characium tuba | Hermann | image |
| Characium typicum | K.W. Lee & Bold | image |
| Characium typicum | K.W. Lee & H.C. Bold | Univ. Texas Publ. | 7403: 30, figs. 9, 97-104, 214-218 | 1974 |
| Characium urnigerum | Hermann | image |
| Characium vacuolatum | K.W. Lee & Bold | image |
| DEUTEROCHARACIUM | K. Petry | image |
| Deuterocharacium fallax | B. Fott | image |
| Deuterocharacium polyplastidicum | K. Petrư | image |
| Deuterocharacium polyplastidicum var. petryae | B. Fott | image |
| Deuterocharacium polyplastidicum_('polyplastidium') | Petrý | Österr. Bot. Z. | 115: 456, 458, Abb. 5, 6 | 1969 |
| EUCHARACIUM | A.A. Pascher | image |
| HYALOCHARACIUM | A.A. Pascher | image |
| HYALOCHARACIUM | Pascher | image |
| Hyalocharacium chrysopyxidis | Pascher | image |
| LOBOCHARACIUM | P. Kugrens, B.L. Clay, & R. Aguiar | J. Phycol. | 36: 422 | 2000 |
| Lobocharacium coloradoense | P. Kugrens, B.L. Clay & R. Aguiar | J. Phycol. | 36: 422, figs. 1-36 | 2000 |
| PSEUDOCHARACIUM | Korshikov | image |
| Pseudocharacium acuminatum | Korshikov | Protococcineae: | 168, fig. 113 | 1953 |
| Pseudocharacium americanum | K.W. Lee & Bold | image |
| Pseudocharacium obtusum | (Braun) Petry | image |