taxonID	type	description	language	source
03FA5B398A628E44FCC0FA21FC1862AA.taxon	type_taxon	TYPE. — Mariprasiola stipitata (Suhr ex Jessen) Heesch, Guiry & Rindi, comb. nov. (basionym: Prasiola stipitata Suhr ex Jessen) below.	en	Heesch, Svenja, Guiry, Michael D., Rindi, Fabio (2025): Taxonomic revision of the genus Prasiola Meneghini, 1838 (Prasiolaceae, Trebouxiophyceae) results in the establishment of three new genera. Cryptogamie, Algologie 20 (2): 19-30, DOI: 10.5252/cryptogamie-algologie2025v46a2, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/algologie2025v46a2.pdf
03FA5B398A628E44FCC0FA21FC1862AA.taxon	etymology	ETYMOLOGY. — Derived from “ mari- “, a prefix denoting the marine habitat typical of the genus.	en	Heesch, Svenja, Guiry, Michael D., Rindi, Fabio (2025): Taxonomic revision of the genus Prasiola Meneghini, 1838 (Prasiolaceae, Trebouxiophyceae) results in the establishment of three new genera. Cryptogamie, Algologie 20 (2): 19-30, DOI: 10.5252/cryptogamie-algologie2025v46a2, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/algologie2025v46a2.pdf
03FA5B398A628E44FCC0FA21FC1862AA.taxon	description	DESCRIPTION Thalli adhering to the substratum by a callus- or crust-like holdfast, from which a pluriseriate stipe arises, gradually expanding into a linear, lanceolate, wedge-shaped, spoonshaped or fan-shaped blade, ranging in width and length from a few mm to approximately 1.5 cm. Reproduction sexually by oogamy or asexually by aplanospores. The genus includes both species with sexual reproduction and species with entirely asexual life histories. Algae living in upper intertidal and supratidal habitats of marine rocky shores often subject to inputs of organic nitrogen, or of coastal lagoons.	en	Heesch, Svenja, Guiry, Michael D., Rindi, Fabio (2025): Taxonomic revision of the genus Prasiola Meneghini, 1838 (Prasiolaceae, Trebouxiophyceae) results in the establishment of three new genera. Cryptogamie, Algologie 20 (2): 19-30, DOI: 10.5252/cryptogamie-algologie2025v46a2, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/algologie2025v46a2.pdf
03FA5B398A608E46FF39FAA7FD3C62AA.taxon	materials_examined	TYPE MATERIAL. — N. L. Gardner 3981 (Setchell & Gardner 1920: 292, but the specimen is “ currently missing ”, fide Dr Kathy-Ann Miller, UC). LECTOTYPE (here designated). — Original illustration in Setchell & Gardner (1920: pl. 22: fig. 3 e). TYPE LOCALITY. — “ Sitka, Alaska ” (United States) (Setchell & Gardner 1920: 292), growing at or near the upper tide mark on rocky islets.	en	Heesch, Svenja, Guiry, Michael D., Rindi, Fabio (2025): Taxonomic revision of the genus Prasiola Meneghini, 1838 (Prasiolaceae, Trebouxiophyceae) results in the establishment of three new genera. Cryptogamie, Algologie 20 (2): 19-30, DOI: 10.5252/cryptogamie-algologie2025v46a2, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/algologie2025v46a2.pdf
03FA5B398A608E46FF39FAA7FD3C62AA.taxon	discussion	REMARKS William Albert Setchell (1864 - 1943), Professor of Botany at the University of California, Berkeley, and Nathaniel Lionel Gardner (1864 - 1937), also of the University of California at Berkeley, described many algae from Alaska to the Gulf of California and elsewhere. Their types are generally to be found in the Jepson Herbarium at UC.	en	Heesch, Svenja, Guiry, Michael D., Rindi, Fabio (2025): Taxonomic revision of the genus Prasiola Meneghini, 1838 (Prasiolaceae, Trebouxiophyceae) results in the establishment of three new genera. Cryptogamie, Algologie 20 (2): 19-30, DOI: 10.5252/cryptogamie-algologie2025v46a2, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/algologie2025v46a2.pdf
03FA5B398A608E46FC36FF6BFB4066CE.taxon	materials_examined	TYPE MATERIAL. — C. - C. Jao No. 1261; 17. XII. 1935 [the place of deposition of the type cannot be ascertained]. LECTOTYPE (here designated). — Original illustration in Jao (1937: pl. XIII, fig. 5). TYPE LOCALITY. — “ Growing on gravel and grasses in the upper littoral belt, Argyle Lagoon, San Juan Island ” (Washington State, United States).	en	Heesch, Svenja, Guiry, Michael D., Rindi, Fabio (2025): Taxonomic revision of the genus Prasiola Meneghini, 1838 (Prasiolaceae, Trebouxiophyceae) results in the establishment of three new genera. Cryptogamie, Algologie 20 (2): 19-30, DOI: 10.5252/cryptogamie-algologie2025v46a2, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/algologie2025v46a2.pdf
03FA5B398A608E46FC36FF6BFB4066CE.taxon	discussion	REMARKS Chin-Chih Jao (1900 - 1997) carried out his doctoral research at the University of Michigan in the 1930 s, but a search of MICH by Dr M. J. Wynne revealed no type or any other material, even though a footnote on p. 99 of his publication specified that types were deposited there. Original material may have been brought to China by Dr Jao (MBMCAS) but its current location is unknown.	en	Heesch, Svenja, Guiry, Michael D., Rindi, Fabio (2025): Taxonomic revision of the genus Prasiola Meneghini, 1838 (Prasiolaceae, Trebouxiophyceae) results in the establishment of three new genera. Cryptogamie, Algologie 20 (2): 19-30, DOI: 10.5252/cryptogamie-algologie2025v46a2, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/algologie2025v46a2.pdf
03FA5B398A608E46FCD9FC64FB976032.taxon	materials_examined	TYPE MATERIAL. — N. L. Gardner 3824 (Setchell & Gardner 1920: 291, but the specimen is “ currently missing ”, fide Dr Kathy-Ann Miller, UC). TYPE LOCALITY. — “ Neah Bay, Washington ” (United States) (Setchell & Gardner 1920: 291). LECTOTYPE (here designated). — Original illustration in Setchell & Gardner (1920: pl. 25: fig. 2).	en	Heesch, Svenja, Guiry, Michael D., Rindi, Fabio (2025): Taxonomic revision of the genus Prasiola Meneghini, 1838 (Prasiolaceae, Trebouxiophyceae) results in the establishment of three new genera. Cryptogamie, Algologie 20 (2): 19-30, DOI: 10.5252/cryptogamie-algologie2025v46a2, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/algologie2025v46a2.pdf
03FA5B398A608E46FF6EFF6BFEF1618F.taxon	materials_examined	LECTOTYPE. — Original illustration (Jessen 1848: pl. II, fig. 11; “ frondes Slesvicenses ” designated by Burrows 1991: 24). EPITYPE (here designated for the above lectotype). — B 40 0046812 (ZE Botanischer Garten und Botanisches Museum, Freie Universität Berlin); Sandwig, Flensburg Fjord, Germany; dried herbarium specimen; 21. X. 2024; HRO 905; S. Heesch coll. / det.; GenBank accession no.: PQ 605264 (rbc L sequence). TYPE LOCALITY. — “ Sandwieck in ducatu Slesvicensi ” [Duchy of Schleswig, now in the state of Schleswig-Holstein, Germany] (Jessen 1848: 16) (Sandwig, Flensburg Fjord, Germany).	en	Heesch, Svenja, Guiry, Michael D., Rindi, Fabio (2025): Taxonomic revision of the genus Prasiola Meneghini, 1838 (Prasiolaceae, Trebouxiophyceae) results in the establishment of three new genera. Cryptogamie, Algologie 20 (2): 19-30, DOI: 10.5252/cryptogamie-algologie2025v46a2, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/algologie2025v46a2.pdf
03FA5B398A608E46FF6EFF6BFEF1618F.taxon	discussion	REMARKS Karl Friedrich Wilhelm Jessen (1821 - 1889) was a German botanist born in Schleswig (then a fiefdom of Denmark) whose doctorate at the University of Kiel was a monograph of the genus Prasiola, effectively published at Kiel by the university. At the time this species was described, the duchy of Slesvic (current German spelling: Schleswig) comprised the southern part of the Jutland peninsula, with Sandwieck (presently spelled Sandwig) situated on the southern coast of Flensburg Fjord in the middle of the duchy. In 1920, the northern part of the duchy was assigned to Denmark, while the southern part, including the southern part of Flensburg Fjord (and Sandwig), was integrated into the German Reich.	en	Heesch, Svenja, Guiry, Michael D., Rindi, Fabio (2025): Taxonomic revision of the genus Prasiola Meneghini, 1838 (Prasiolaceae, Trebouxiophyceae) results in the establishment of three new genera. Cryptogamie, Algologie 20 (2): 19-30, DOI: 10.5252/cryptogamie-algologie2025v46a2, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/algologie2025v46a2.pdf
03FA5B398A608E46FCC0FA01FB7A62AA.taxon	etymology	ETYMOLOGY. — The Latin noun vitta (pl. vittae), a belt or ribbon, is here employed as a prefix.	en	Heesch, Svenja, Guiry, Michael D., Rindi, Fabio (2025): Taxonomic revision of the genus Prasiola Meneghini, 1838 (Prasiolaceae, Trebouxiophyceae) results in the establishment of three new genera. Cryptogamie, Algologie 20 (2): 19-30, DOI: 10.5252/cryptogamie-algologie2025v46a2, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/algologie2025v46a2.pdf
03FA5B398A608E46FCC0FA01FB7A62AA.taxon	type_taxon	TYPE. — Vittaprasiola calophylla (Carmichael ex Greville) Heesch, Guiry & Rindi, comb. nov. (basionym: Prasiola calophylla Carmichael ex Greville), below.	en	Heesch, Svenja, Guiry, Michael D., Rindi, Fabio (2025): Taxonomic revision of the genus Prasiola Meneghini, 1838 (Prasiolaceae, Trebouxiophyceae) results in the establishment of three new genera. Cryptogamie, Algologie 20 (2): 19-30, DOI: 10.5252/cryptogamie-algologie2025v46a2, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/algologie2025v46a2.pdf
03FA5B398A608E46FCC0FA01FB7A62AA.taxon	description	DESCRIPTION Thalli adhering to the substratum by a basal cell or a callus-like holdfast, from which a uniseriate or pluriseriate stipe arises, gradually expanding into a linear, ribbon-shaped blade up to a 2 cm wide and up to 10 cm long. Asexual reproduction by aplanospores; sexual reproduction not known, presumed but not observed. When known, life history consists of an alternation of two asexual heteromorphic generations. Algae living in freshwater habitats and in terrestrial habitats often subject to inputs of organic nitrogen.	en	Heesch, Svenja, Guiry, Michael D., Rindi, Fabio (2025): Taxonomic revision of the genus Prasiola Meneghini, 1838 (Prasiolaceae, Trebouxiophyceae) results in the establishment of three new genera. Cryptogamie, Algologie 20 (2): 19-30, DOI: 10.5252/cryptogamie-algologie2025v46a2, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/algologie2025v46a2.pdf
03FA5B398A6E8E48FF27FA41FE0162AA.taxon	etymology	ETYMOLOGY. — Derived from “ Ea ”, a prefix based on the abbreviation of “ East Asian ” as a connotation of the three east Asian countries where this species has so far been recorded from, i. e. Japan, South Korea and China (Guiry & Guiry 2024).	en	Heesch, Svenja, Guiry, Michael D., Rindi, Fabio (2025): Taxonomic revision of the genus Prasiola Meneghini, 1838 (Prasiolaceae, Trebouxiophyceae) results in the establishment of three new genera. Cryptogamie, Algologie 20 (2): 19-30, DOI: 10.5252/cryptogamie-algologie2025v46a2, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/algologie2025v46a2.pdf
03FA5B398A6E8E48FF27FA41FE0162AA.taxon	type_taxon	TYPE. — Eaprasiola japonica (Yatabe) Heesch, Guiry & Rindi, comb. nov. (basionym: Prasiola japonica Yatabe), below.	en	Heesch, Svenja, Guiry, Michael D., Rindi, Fabio (2025): Taxonomic revision of the genus Prasiola Meneghini, 1838 (Prasiolaceae, Trebouxiophyceae) results in the establishment of three new genera. Cryptogamie, Algologie 20 (2): 19-30, DOI: 10.5252/cryptogamie-algologie2025v46a2, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/algologie2025v46a2.pdf
03FA5B398A6E8E48FF27FA41FE0162AA.taxon	description	DESCRIPTION Thalli consisting of oval or linear blades, up to 4 cm wide and 20 cm long, attached to the substratum by a small, callus-like holdfast. Reproduction takes places sexually by oogamy and asexually by aplanospores. Life history consists of a repetition of the same generation that reproduces both asexually and sexually. Living in freshwater.	en	Heesch, Svenja, Guiry, Michael D., Rindi, Fabio (2025): Taxonomic revision of the genus Prasiola Meneghini, 1838 (Prasiolaceae, Trebouxiophyceae) results in the establishment of three new genera. Cryptogamie, Algologie 20 (2): 19-30, DOI: 10.5252/cryptogamie-algologie2025v46a2, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/algologie2025v46a2.pdf
03FA5B398A6E8E48FC5AFF6BFA74660E.taxon	materials_examined	TYPE MATERIAL. — University of Tokyo (TI). SYNTYPE LOCALITIES. — Nikko (province of Shimotsuke), Kiriu (Kozuke), Shibakawa (Suruga), and Oimura (Mino) [Japan] (Yatabe 1891: 188). The figures in Yatabe’s pl. XXV are of material sent to him by “ Mr. I. Ogasawara ” collected in March 1891 from Kiriugawa, “ […] a rapid steam near the town of Kiriu ”, Kozuke Province [now Gunma Prefecture, central Honshu]. This material would be the most suitable for lectotypification.	en	Heesch, Svenja, Guiry, Michael D., Rindi, Fabio (2025): Taxonomic revision of the genus Prasiola Meneghini, 1838 (Prasiolaceae, Trebouxiophyceae) results in the establishment of three new genera. Cryptogamie, Algologie 20 (2): 19-30, DOI: 10.5252/cryptogamie-algologie2025v46a2, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/algologie2025v46a2.pdf
03FA5B398A6E8E48FC5AFF6BFA74660E.taxon	discussion	REMARKS Ryôkichi (Ruôkichi) Yatabe (1851 - 1899) was the first professor of botany at the University of Tokyo’s School of Science during the Meiji-period. His algal specimens are at the University of Tokyo (Dr Taiju Kitayama pers. comm.) and not at the University of Sapporo (Prof. Kazuhiro Kogame pers. comm.).	en	Heesch, Svenja, Guiry, Michael D., Rindi, Fabio (2025): Taxonomic revision of the genus Prasiola Meneghini, 1838 (Prasiolaceae, Trebouxiophyceae) results in the establishment of three new genera. Cryptogamie, Algologie 20 (2): 19-30, DOI: 10.5252/cryptogamie-algologie2025v46a2, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/algologie2025v46a2.pdf
03FA5B398A6E8E48FF34FF6BFCCD662E.taxon	materials_examined	POTENTIAL TYPE. — E 00500045, which is the only specimen listed in the Greville collection as having been collected by Carmichael. TYPE LOCALITY. — “ On a block of stone near the Clergyman’s house in the Island of Lismore. October. Captain Carmichael. ” [Argyll & Bute, Scotland] (Greville 1826: expl. pl. 220).	en	Heesch, Svenja, Guiry, Michael D., Rindi, Fabio (2025): Taxonomic revision of the genus Prasiola Meneghini, 1838 (Prasiolaceae, Trebouxiophyceae) results in the establishment of three new genera. Cryptogamie, Algologie 20 (2): 19-30, DOI: 10.5252/cryptogamie-algologie2025v46a2, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/algologie2025v46a2.pdf
03FA5B398A6E8E48FF34FF6BFCCD662E.taxon	discussion	REMARKS Greville (1826: expl. pl. 220) attributed the name to “ Carmichael MSS ”. Captain Dugald [Dughall] Carmichael (1772 - 1827) was a Scottish surgeon-solider-adventurer and friend of Robert Brown (1773 - 1858); Carmichael retired to Ardtur, Appin, about 1817, spending much of his time studying the local algae and communicating many of his discoveries to his contemporaries.	en	Heesch, Svenja, Guiry, Michael D., Rindi, Fabio (2025): Taxonomic revision of the genus Prasiola Meneghini, 1838 (Prasiolaceae, Trebouxiophyceae) results in the establishment of three new genera. Cryptogamie, Algologie 20 (2): 19-30, DOI: 10.5252/cryptogamie-algologie2025v46a2, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/algologie2025v46a2.pdf
03FA5B398A6E8E48FF75FC04FD2060EC.taxon	materials_examined	TYPE MATERIAL. — University of Oslo Natural History Museum (O)? (not seen). TYPE LOCALITY. — Leerdalsören, Bergen, Norway (Sommerfelt 1828: 28)	en	Heesch, Svenja, Guiry, Michael D., Rindi, Fabio (2025): Taxonomic revision of the genus Prasiola Meneghini, 1838 (Prasiolaceae, Trebouxiophyceae) results in the establishment of three new genera. Cryptogamie, Algologie 20 (2): 19-30, DOI: 10.5252/cryptogamie-algologie2025v46a2, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/algologie2025v46a2.pdf
03FA5B398A6E8E48FF75FC04FD2060EC.taxon	discussion	REMARKS SØren Christian Sommerfelt (1794 - 1838) was a Norwegian clergyman and botanist whose collections are currently held by the University of Oslo Natural History Museum (O).	en	Heesch, Svenja, Guiry, Michael D., Rindi, Fabio (2025): Taxonomic revision of the genus Prasiola Meneghini, 1838 (Prasiolaceae, Trebouxiophyceae) results in the establishment of three new genera. Cryptogamie, Algologie 20 (2): 19-30, DOI: 10.5252/cryptogamie-algologie2025v46a2, URL: https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/algologie2025v46a2.pdf
