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Stirkia dumoserta (R.E.Norris & I.A.Abbott) Barros-Barreto & Maggs, comb. nov. Ceramium dumosertum R.E.Norris & I.A.Abbott, Pacific Science 46 (4): 456 (Norris & Abbott 1992). TYPE LOCALITY. — United States. Hawai’i, Maui Island, intertidal on basalt, Ka’inalimu Bay, Hana. HOLOTYPE. — United States. Hawai’i, Maui Island, intertidal on basalt, Ka’inalimu Bay, Hana, 21.VII.1990, legit I.A. Abbott 20307 (holo-, BISH [BISH 612652])., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on page 28, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655, {"references":["NORRIS R. E. & ABBOTT I. A. 1992. - New taxa of Ceramiaceae (Rhodophyta) from Hawai'i. Pacific Science 46 (4): 453 - 465."]}

Campylaephora gardneri (Kylin) Barros-Barreto & Maggs, comb. nov. Ceramium gardneri Kylin, Lunds Universitets Årsskrift, Ny Följd , Andra Afdelningen 37 (2): 29 (Kylin 1941). LECTOTYPE. — United States. California, Monterey County, Pescadero Point (Kylin 1941: 29), 36°33’43.7328”N, 121°57’11.2932”W, on rocks and algae in the lower littoral, V.1916, 2248 N. L. Gardner (lecto-, designated by Cho et al. [2002: 558], UC [UC2076252]). NOTE Cho et al. (2002: 558) noted that there are two tetrasporangial specimens attached on the herbarium sheet of the published exsiccata Phycotheca Boreali-Americana (P. B.- A.)XLV,no.2248, at LD. Cho designated both of these thalli as the lectotype. Isotypes are in UC and NY, and thus published exsiccata (P. B.- A.) in other herbaria holding would also be isotypes., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on page 25, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655, {"references":["KYLIN H. 1941. - Californische Rhodophyceen. Lunds Arsskrijt, Ny Foljd, Andra Afdelningen 37: 1 - 51.","CHO T. O., BOO S. M. & HANSEN G. I. 2002. - Structure and reproduction of the genus Ceramium (Ceramiales, Rhodophyta) from Oregon, USA. Phycologia 40: 547 - 71."]}

Campylaephora boydenii (Gepp) Barros-Barreto & Maggs, comb. nov. Ceramium boydenii E.S.Gepp, Journal of Botany, London 42: 164, pl. 460, figs 1-3 (Gepp 1904). HOLOTYPE. — China. Wei-hei-wai, Liu-kung-tao Island. Illustration in Gepp (1904). EPITYPE. — Japan. Sea of Japan, Fukui Prefecture, Echizen, Kuriya, Drift, 5.VII.1971, Hommersand s.n. (epi-, here designated, NCU [NCU-A-0004403]). NOTES In the publication E. S. Gepp did not designate a holotype, but he included (and referred to in the description) an illustration that we designate as the holotype. However, the figures are not very detailed and are not useful for identification. We therefore designate a collection made in Japan by M. Hommersand (specimen NCU-A-0004403) as an epitype. The latter is a very complete specimen, with reproductive structures present, and was the source of tissue for obtaining the DNA sequence data in this study., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on page 24, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655, {"references":["GEPP E. S. 1904. - Chinese marine algae. Journal of Botany, London 42: 161 - 166."]}

Yoneshiguea affinis (Setchell & N.L.Gardner) Barros-Barreto, Maggs & M.A.Jaramillo, comb. nov. Ceramium affine Setchell & N.L.Gardner, Proceedings of the California Academy of Sciences, Series 4, 19: 172 (Setchell & Gardner 1930). TYPE LOCALITY. — Mexico. Baja California, Isla Guadalupe. HOLOTYPE. — Mexico. Baja California, Isla Guadalupe, 25.IV.1924, H.L. Mason no. 36, (holo-, UC [UC2056026]). GENBANK. — DQ458920 (rbc L), MW354769 (COI-5P)., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on page 29, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655, {"references":["SETCHELL W. A. & GARDNER N. L. 1930. - Marine algae of the Revillagigedo Islands Expedition in 1925. Proceedings of the California Academy of Sciences, Series 4, 19: 109 - 215."]}

Stirkia interrupta (Setchell & N.L.Gardner) Barros-Barreto & Maggs, comb. nov. Ceramium interruptum Setchell & N.L.Gardner, Proceedings of the California Academy of Sciences, Series 4, 12: 775, pl. 27, fig. 58 (Setchell & Gardner 1924). TYPE LOCALITY. — United States. California, Eureka, near La Paz. HOLOTYPE. — United States. California, Eureka, near La Paz, V.1917, Marchant no. 78 (holo-, UC)., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on page 28, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655, {"references":["SETCHELL W. A. & GARDNER N. L. 1924. - New marine algae from the Gulf of California. Proceedings of the California Academy of Sciences, Series 4, 12: 695 - 949."]}

Stirkia vaga (P.C.Silva) Barros-Barreto & Maggs, comb. nov. Ceramium vagans P.C.Silva, Smithsonian Contributions to Marine Sciences 27: 56 (Silva et al. 1987). Ceramium vagabundum E.Y.Dawson, nom illeg., Pacific Science 11: 121, fig. 27E (as “vagabunde”) (Dawson 1957). TYPE LOCALITY. — Marshall Islands. Eniwetok Atoll, Parry Island. HOLOTYPE. — Marshall Islands. Eniwetok Atoll, Parry Island, 19.VIII.1955, Dawson no. 13620a (holo-, BISH)., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on page 29, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655, {"references":["SILVA P. C., MENEZ E. G. & MOE R. L. 1987. - Catalog of the benthic marine algae of the Philippines. Smithsonian Contributions to Marine Sciences 27: 1 - 179.","DAWSON E. Y. 1957. - An annotated list of marine algae from Eniwetok Atoll, Marshall Islands. Pacific Science 11: 92 - 132."]}

Campylaephora kondoi (Yendo) Barros-Barreto & Maggs, comb. nov. Ceramium kondoi Yendo, Botanical Magazine, Tokyo 34: 9 (Yendo 1920). SYNTYPE LOCALITY. — “Hab. in mari Japonia, ad insulam Rishiri, in portu Otaru (Kingo Kondo), portu Hakodate (ipse), prov. Echigo (Nou Fisheries School, no. 12)” (Yendo 1920: 9). LECTOTYPE. — Japan. Hokkaido, Harius (lecto-, designated by Cho et al. [2002: 564], SAP [SAP 67]). NOTES Cho et al. (2002: 564) gave “Harius, Hokkaido, Japan ” as the type locality.

Genus Pseudoceramium Barros-Barreto & Maggs, gen. nov. Terete plants with pseudodichotomous branching and forcipate tips, corticated at the nodes. Cortical development consisting of 7-10 periaxial cells cutting off four cortical initial cells; or cutting of two acropetal cells that laterally form a pseudoperiaxial cell; or two acropetal and two basipetal and a pseudoperiaxial cell. Tetrasporangia originating from periaxial cells uni- or bilaterally, forming 2-3 tetrasporangia covered by cortical cells. TYPE SPECIES. — Pseudoceramium oliveirarum Barros-Barreto, Maggs & M.A.Jaramillo, sp. nov. ETYMOLOGY. — From the Greek pseudes meaning “false”, referring to the pseudoperiaxial cell being cut off laterally from a periaxial cell but then observed in the ring of the periaxial cells., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on page 26, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655

Genus Yoneshiguea Barros-Barreto, Maggs & M.A.Jaramillo, gen. nov. Thalli terete with straight apices. Node formed by 4-6 periaxial cells cutting off two acropetal cells. Tetrasporangia formed by periaxial cells, 1-3 per node, naked or partially covered by cortical cells; tetrasporangia unilateral to bilateral (Fig. 1E, K, O). TYPE SPECIES. — Yoneshiguea affinis (Setchell & Gardner) Barros-Barreto, Maggs & M.A.Jaramillo, comb. nov. ETYMOLOGY. — The name was selected to honour a pioneering female Brazilian phycologist, Yocie Yoneshigue-Valentin.

Stirkia brasiliensis (A.B.Joly) Barros-Barreto & Maggs, comb. nov. Ceramium brasiliense A.B.Joly, Boletim da Faculdade de Filosofia, Ciências e Letras, Universidade de São Paulo, Botânica 14: 148, pl. 18, fig. 1A-D (Joly 1957). TYPE LOCALITY. — Brazil. São Paulo State, Prainha, São Vicente. HOLOTYPE. — Brazil. São Paulo State, Prainha, São Vicente, 20.VII.1955, Joly 24-1955 (holo-, BM [BM000562289])., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on page 28, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655, {"references":["JOLY A. B. 1957. - Contribuicao ao conhecimento da flora ficologica marinha da Baia de Santos e Arredores. Boletim da Faculdade de Filosofia da Universidade de Sao Paulo, Botanica 14: 3 - 199."]}

Celeceras pusilla (Harvey) Barros-Barreto & Maggs, comb. nov. Ceramium pusillum Harvey, Phycologia Australica 5: xlvii-xlviii (Harvey 1863). TYPE LOCALITY. — Australia. Victoria, Port Fairy, 38°22’3.19”S, 142°15’26.62”E. LECTOTYPE. — Australia. Victoria, Port Fairy, 38°22’3.19”S, 142°15’26.62”E, Harvey (lecto-, designated by Womersley [1978: 221], TCD[Herb. Harvey, Alg. Aust. Exsicc. 474D]). ISOTYPE. — Australia. Victoria, Port Fairy, 38°22’3.19”S, 142°15’26.62”E (iso-, MEL [MEL 45330])., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on page 26, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655, {"references":["HARVEY W. H. 1863. - Phycologia australica: or, a history of Australian seaweeds; comprising coloured figures and descriptions of the more characteristic marine algae of New South Wales, Victoria, Tasmania, South Australia, and Western Australia, and a synopsis of all known Australian algae. Vol. 5. Lovell Reeve, London, 73 p.","WOMERSLEY H. B. S. 1978. - Southern Australian species of Ceramium Roth (Rhodophyta). Marine and Freshwater Research 29 (2): 205 - 257. https: // doi. org / 10.1071 / MF 9780205"]}

Yoneshiguea compta (BØrgesen) Barros-Barreto, Maggs & M.A.Jaramillo, comb. nov. Ceramium comptum BØrgesen, Dansk Botanisk Arkiv 4 (7): 28-29, fig. 10 (BØrgesen 1924). TYPE LOCALITY. — Dominican Republic. Beata Island (Silva et al. 1996: 393). HOLOTYPE. — Dansk Botanisk Arkiv 4 (7): 29, fig.10(BØrgesen 1924).

Genus Stirkia Barros-Barreto & Maggs, gen. nov. Thalli mainly erect, 10-200 mm high, consisting of irregularly branched axes with a wide variation in habit between species.Axes terete, partially to completely corticated, with apices straight to forcipate. Nodes formed by 6-8 periaxial cells each cutting off four cortical initials, two acropetal and two basipetal. Tetrasporangia formed by periaxial cells, unilateral/bilateral to verticillate, 1-3 per node, sometimes in stichidia-like groups immersed in the thalli. The rbc L alignment positions 696- 709 5’ GAACGATATGATCTT 3’ generated in this study. TYPE SPECIES. — Stirkia fujiana (Barros-Barreto & Maggs) Barros-Barreto & Maggs, comb. nov. ETYMOLOGY. — The name Stirkia was chosen to honour Wendy A. Stirk, who worked on growth and morphogenesis of Stirkia juliae (A.Millar) Barros-Barreto & Maggs, comb. nov.

Stirkia horrida (Setchell & N.L.Gardner) Barros-Barreto & Maggs, comb. nov. Ceramium horridum Setchell & N.L.Gardner, Proceedings of the California Academy of Sciences, Series 4, 12: 777, pl. 26, figs 49, 50, pl. 79 (Setchell & Gardner 1924). TYPE LOCALITY. — Mexico. Sonora, Guaymas. HOLOTYPE. — Mexico. Sonora, Guaymas, V.1917, Marchant no. 91 (holo-, UC [UC1462246])., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on page 28, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655, {"references":["SETCHELL W. A. & GARDNER N. L. 1924. - New marine algae from the Gulf of California. Proceedings of the California Academy of Sciences, Series 4, 12: 695 - 949."]}

Stirkia codicola (J.Agardh) Barros-Barreto & Maggs, comb. nov. Ceramium codicola J.Agardh, Lunds Universitets ÅrsSkrift, Andra Afdelningen, Kongl. Fysiografiska Sällskapets i Lund Handlingar 30 (7): 23 (Agardh 1894). Ceramium codiophilum Setchell & N.L.Gardner, Proceedings of the California Academy of Sciences, Series 4, 22: 89, pl. 8, figs 23, 24 (Setchell & Gardner 1937). TYPE LOCALITY. — United States. California, Santa Cruz. ISOTYPE. — United States. California, Santa Cruz, 36°58’40.0152”N, 122°1’20.244”W, W. G. Farlow LD 20930 (iso-, designated by Cho et al. [2002: 557], UC [UC1859260])., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on page 28, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655, {"references":["AGARDH J. G. 1894. - Analecta Algologica, Continuatio II. Lunds Universitets Ars-Skrift, Andra Afdelningen, Kongl. Fysiografiska Sallskapets i Lund Handlingar 30 (7): 1 - 99.","SETCHELL W. A. & GARDNER N. L. 1937. - The Templeton Crocker Expedition of the California Academy of Sciences, 1932. No. 31: A preliminary report on the algae. Proceedings of the California Academy of Sciences, Series 4, 22: 65 - 98.","CHO T. O., BOO S. M. & HANSEN G. I. 2002. - Structure and reproduction of the genus Ceramium (Ceramiales, Rhodophyta) from Oregon, USA. Phycologia 40: 547 - 71."]}

Reinboldiella filicula (Harvey ex Womersley) Barros-Barreto & Maggs, comb. nov. Ceramium filiculum Harvey ex Womersley, Marine and Freshwater Research 29 (2): 238, figs 4E, F, 15 A-E (Womersley 1978). TYPE LOCALITY. — Australia. South Australia, Port Noarlunga. HOLOTYPE. — Australia. South Australia, Port Noarlunga, in low eulittoral pools on offshore reef, on basal leaves of Sargassum lacerifolium (Turner) C.Agardh, 13.III.1977 (holo-, ADU [ADU A47978])., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on page 27, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655, {"references":["WOMERSLEY H. B. S. 1978. - Southern Australian species of Ceramium Roth (Rhodophyta). Marine and Freshwater Research 29 (2): 205 - 257. https: // doi. org / 10.1071 / MF 9780205"]}

Carpoblepharis obsoleta (C.Agardh) Barros-Barreto & Maggs, comb. nov. Ceramium obsoletum C.Agardh, Species algarum rite cognitae, cum synonymis, differentiis specificis et descriptionibus succinctis.Voluminis secondi, Sectio prior: 145 (Agardh 1828). TYPE LOCALITY. — South Africa. Cape of Good Hope (Silva et al. 1996: 400). LECTOTYPE. — South Africa. Cape of Good Hope, C.Agardh collection 21490 A, B and C (lecto-, here designated, LD). NOTE The original description does not indicate a type, neither does it mention a specimen that can be designated as holotype. Thus, we designated as lectotype C.Agardh’s collection in Lund Herbarium 21490 A (male plant), B (tetrasporophyte), C (male plant) following Simons 1992 annotations., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on page 25, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655, {"references":["AGARDH C. A. 1828. - Species algarum rite cognitae, cum synonymis, differentiis specificis et descriptionibus succinctis. Vol. 2. Sect. 1. Ernst Mauritius, Leipzig, 189 p.","SILVA P. C., BASSON P. W. & MOE R. L. 1996. - Catalogue of the benthic marine algae of the Indian Ocean. University of California Publications in Botany 79: 1 - 1259."]}

Pseudoceramium tenerrimum (G.Martens) Barros-Barreto & Maggs, comb. nov. Ceramium tenerrimum (G.Martens) Okamura, Icones of Japanese Algae IV: 112-114, pl. 179, figs 1-7 (Okamura 1921). — Basionym: Hormoceras tenerrimum G.Martens, Die Tange. Die Preussische Expedition nach Ost-Asien. Nach Theil, Botanischer Theil: 146, pl. VIII, fig. 2 (Martens 1868). TYPE LOCALITY. — Japan. Nagasaki. HOLOTYPE. — Japan. Nagasaki, IV.1861.

Yoneshiguea compta (BØrgesen) Barros-Barreto, Maggs & M.A.Jaramillo, comb. nov. Ceramium comptum BØrgesen, Dansk Botanisk Arkiv 4 (7): 28-29, fig. 10 (BØrgesen 1924). TYPE LOCALITY. — Dominican Republic. Beata Island (Silva et al. 1996: 393). HOLOTYPE. — Dansk Botanisk Arkiv 4 (7): 29, fig.10(BØrgesen 1924)., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on page 29, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655, {"references":["BORGESEN F. 1924. - Plants from Beata Island, St. Domingo. Marine algae. Dansk Botanisk Arkiv 4 (7): 14 - 35.","SILVA P. C., BASSON P. W. & MOE R. L. 1996. - Catalogue of the benthic marine algae of the Indian Ocean. University of California Publications in Botany 79: 1 - 1259."]}

Pseudoceramium brevizonatum (H.E.Petersen) Barros-Barreto & Maggs, comb. nov. Ceramium brevizonatum H.E.Petersen in Schmidt, Report on the Danish Oceanographic expeditions 1908-1910 to the Mediterranean and adjacent seas 2: 14, figs 8, 9 (Petersen 1918). SYNTYPE LOCALITIES. — Algeria. Algiers. France. Menton. SYNTYPES. — Silva et al. 1996: 390., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on page 26, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655, {"references":["PETERSEN P. E. 1918. - Algae (excl. calcareous algae). Report on the Danish Oceanographic expeditions 1908 - 1910 to the Mediterranean and adjacent seas. Vol. 2. Copenhagen, 20 p.","SILVA P. C., BASSON P. W. & MOE R. L. 1996. - Catalogue of the benthic marine algae of the Indian Ocean. University of California Publications in Botany 79: 1 - 1259."]}

Yoneshiguea affinis (Setchell & N.L.Gardner) Barros-Barreto, Maggs & M.A.Jaramillo, comb. nov. Ceramium affine Setchell & N.L.Gardner, Proceedings of the California Academy of Sciences, Series 4, 19: 172 (Setchell & Gardner 1930). TYPE LOCALITY. — Mexico. Baja California, Isla Guadalupe. HOLOTYPE. — Mexico. Baja California, Isla Guadalupe, 25.IV.1924, H.L. Mason no. 36, (holo-, UC [UC2056026]). GENBANK. — DQ458920 (rbc L), MW354769 (COI-5P).

Pseudoceramium brevizonatum (H.E.Petersen) Barros-Barreto & Maggs, comb. nov. Ceramium brevizonatum H.E.Petersen in Schmidt, Report on the Danish Oceanographic expeditions 1908-1910 to the Mediterranean and adjacent seas 2: 14, figs 8, 9 (Petersen 1918). SYNTYPE LOCALITIES. — Algeria. Algiers. France. Menton. SYNTYPES. — Silva et al. 1996: 390.

Pseudoceramium paniculatum (Okamura) Barros-Barreto & Maggs, comb. nov. Ceramium paniculatum Okamura, Icones of Japanese algae IV: 114, pl. 179, figs 8-16 (Okamura 1921). TYPE LOCALITY. — Japan. Iwaki Province, Kamahara. HOLOTYPE. — Japan. Iwaki Province, Kamahara, M. K. Nemoto (holo-, SAP [Herb. Okamura, Alg. Jap. Exsic. n. 2]!)., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on page 27, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655, {"references":["OKAMURA K. 1921. - Icones of Japanese algae. Vol. IV: 63 - 149."]}

Stirkia coulteri (Harvey) Barros-Barreto & Maggs, comb. nov. Microcladia coulteri Harvey, Smithsonian Contributions to Knowledge 5 (5): 209, pl. XXXIII, fig. A (Harvey 1853). TYPE LOCALITY. — United States. California, Monterey. LECTOTYPE. — United States. California, Monterey, 1853, Thomas Coulter, Thomas s.n. (lecto-, here designated, TCD [TCD 0012510]; syn-, NY [NY 02221008]) (Wallace 2019). NOTE Rbc L alignment positions 696-709 5’AAACGATATGATCTT3’ generated in this study., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on page 28, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655, {"references":["HARVEY W. H. 1853. - Nereis boreali-americana; or, contributions towards a history of the marine algae of the atlantic and pacific coasts of North America. Part II. Rhodospermeae. Smithsonian Contributions to Knowledge 5 (5): 1 - 258.","WALLACE G. D. 2019. - Plantae Coulterianae: Thomas Coulter's Californian Exsiccata. Aliso: A Journal of Systematic and Floristic Botany 37 (1): 1 - 73."]}

Stirkia interrupta (Setchell & N.L.Gardner) Barros-Barreto & Maggs, comb. nov. Ceramium interruptum Setchell & N.L.Gardner, Proceedings of the California Academy of Sciences, Series 4, 12: 775, pl. 27, fig. 58 (Setchell & Gardner 1924). TYPE LOCALITY. — United States. California, Eureka, near La Paz. HOLOTYPE. — United States. California, Eureka, near La Paz, V.1917, Marchant no. 78 (holo-, UC).

Stirkia juliae (A.Millar) Barros-Barreto & Maggs, comb. nov. Ceramium juliae A.Millar, Australian Systematic Botany 15: 494, figs 1-12 (2002). TYPE LOCALITY. — Australia. New South Wales, Honeysuckle Point, Twofold Bay. HOLOTYPE. — Australia. New South Wales, Honeysuckle Point, Twofold Bay, 15 m deep, 37°05’57”S, 149°56’21”E, 4.II.1992, A. Millar s.n. (holo-, NSW [NSW605422], slide 12-97)., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on page 28, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655

Stirkia japonica (Okamura) Barros-Barreto & Maggs, comb. nov. Ceramium japonicum Okamura, Botanical Magazine, Tokyo 10 (110-111): 38, pl. 3, figs 24-28 (Okamura 1896). TYPE LOCALITY. — Japan. Noto. HOLOTYPE. — Japan. Noto (holo-, SAP [Okamura collection Alg. Jap. Exsic.]). NOTE Rbc L alignment positions 696-709 5’GAATGATATGATCTT3’ generated in this study., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on page 28, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655, {"references":["OKAMURA K. 1896. - Contribution to the knowledge of the marine algae of Japan, II. Botanical Magazine, Tokyo 10 (110 - 111): 21 - 40."]}

Stirkia dumoserta (R.E.Norris & I.A.Abbott) Barros-Barreto & Maggs, comb. nov. Ceramium dumosertum R.E.Norris & I.A.Abbott, Pacific Science 46 (4): 456 (Norris & Abbott 1992). TYPE LOCALITY. — United States. Hawai’i, Maui Island, intertidal on basalt, Ka’inalimu Bay, Hana. HOLOTYPE. — United States. Hawai’i, Maui Island, intertidal on basalt, Ka’inalimu Bay, Hana, 21.VII.1990, legit I.A. Abbott 20307 (holo-, BISH [BISH 612652]).

Campylaephora kondoi (Yendo) Barros-Barreto & Maggs, comb. nov. Ceramium kondoi Yendo, Botanical Magazine, Tokyo 34: 9 (Yendo 1920). SYNTYPE LOCALITY. — “Hab. in mari Japonia, ad insulam Rishiri, in portu Otaru (Kingo Kondo), portu Hakodate (ipse), prov. Echigo (Nou Fisheries School, no. 12)” (Yendo 1920: 9). LECTOTYPE. — Japan. Hokkaido, Harius (lecto-, designated by Cho et al. [2002: 564], SAP [SAP 67]). NOTES Cho et al. (2002: 564) gave “Harius, Hokkaido, Japan ” as the type locality., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on page 25, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655, {"references":["YENDO K. 1920. - Notes on algae new to Japan VITI. Botanical Magazine, Tokyo 34: 1 - 12.","CHO T. O., BOO S. M. & HANSEN G. I. 2002. - Structure and reproduction of the genus Ceramium (Ceramiales, Rhodophyta) from Oregon, USA. Phycologia 40: 547 - 71."]}

Genus Yoneshiguea Barros-Barreto, Maggs & M.A.Jaramillo, gen. nov. Thalli terete with straight apices. Node formed by 4-6 periaxial cells cutting off two acropetal cells. Tetrasporangia formed by periaxial cells, 1-3 per node, naked or partially covered by cortical cells; tetrasporangia unilateral to bilateral (Fig. 1E, K, O). TYPE SPECIES. — Yoneshiguea affinis (Setchell & Gardner) Barros-Barreto, Maggs & M.A.Jaramillo, comb. nov. ETYMOLOGY. — The name was selected to honour a pioneering female Brazilian phycologist, Yocie Yoneshigue-Valentin., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on page 29, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655

Celeceras novae-zelandiae (J.Agardh) Barros-Barreto & Maggs, comb. nov. Microcladia novae-zelandiae J.Agardh, Lunds Universitets Arsskrift Andra Afdelningen, Kongl. Fysiografiska Sällskapets i Lund Handlingar 33 (9): 35 (Agardh 1897). TYPE LOCALITY. — New Zealand. South Island, Clair, Dunedin. HOLOTYPE. — New Zealand. South Island, Clair, Dunedin, 25.XII.1896, J. C. Smith, Herb. Agardh 21963 (holo-, LD [LD 2100380])., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on page 25, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655, {"references":["AGARDH J. G. 1897. - Analecta Algologica, Continuato IV. Lunds Universitets Arsskrift Andra Afdelningen, Kongl. Fysiografiska Sallskapets i Lund Handlingar 33 (9): 1 - 106."]}

Stirkia pacifica (Collins) Barros-Barreto & Maggs, comb. nov. Ceramium pacificum (Collins) Kylin, Lunds Universitets Årsskrift, Ny Följd, Andra Afdelningen 21 (9): 65 (Kylin 1925). — Basionym: Ceramium rubrum var. pacificum Collins, Geological Survey. Victoria Memorial Museum, Bulletin 1: 125 (Collins 1913). Ceramium washingtoniense Kylin, Lunds Universitets Årsskrift, Ny Följd, Andra Afdelningen 21 (9): 62 (Kylin 1925). — Type: United States. Washington, False Bay, San Juan Island, 24.VII.1924, H. Kylin (LD [LD 1265409]). TYPE LOCALITY. — United States. Monterey, California (Cho et al. 2002: 565). LECTOTYPE. — United States. Monterey, California (lecto-, designated by Cho et al. [2002: 565], FH)., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on pages 28-29, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655, {"references":["KYLIN H. 1925. - The marine red algae in the vicinity of of the Biological Station at Friday Harbor, Wash. Lunds Universitets Arsskrift, Ny Foljd, Andra Afdelningen 21 (9): 1 - 87.","COLLINS F. S. 1913. - The marine algae of Vancouver Island. Geological Survey. Victoria Memorial Museum, Bulletin 1: 99 - 137.","CHO T. O., BOO S. M. & HANSEN G. I. 2002. - Structure and reproduction of the genus Ceramium (Ceramiales, Rhodophyta) from Oregon, USA. Phycologia 40: 547 - 71."]}

Ceramium glandulosum (Solander ex Turner) Barros-Barreto & Maggs, comb. nov. Fucus glandulosus Solander ex Turner, Fuci sive generi a icones et historia: 82, pl. 38 (Turner 1802). Microcladia glandulosa (Solander ex Turner) Greville, Algae britannicae 1: 99 (Greville 1830). LECTOTYPE. — Presumably England. S.l., s.d. (lecto-, designated by Maggs & Hommersand [1993], BM-K)., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on page 26, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655, {"references":["TURNER D. 1802. - Fuci sive plantarum fucorum generi a botanicis ascriptarum icones descriptiones et historia. Vol. 2. John, London, 164 p.","GREVILLE R. K. 1830. - Algae britannicae, or descriptions of the marine and other inarticulated plants of the British islands, belonging to the order Algae; with plates illustrative of the genera. Maclachlan & Stewart, Edinburgh; Baldwin & Cradock, London, 218 p.","MAGGS C. A. & HOMMERSAND M. H. 1993. - Seaweeds of the British Isles. Vol. 1: Rhodophyta. Part 3 A: Ceramiales. Natural History Museum, London, 444 p."]}

Genus Stirkia Barros-Barreto & Maggs, gen. nov. Thalli mainly erect, 10-200 mm high, consisting of irregularly branched axes with a wide variation in habit between species.Axes terete, partially to completely corticated, with apices straight to forcipate. Nodes formed by 6-8 periaxial cells each cutting off four cortical initials, two acropetal and two basipetal. Tetrasporangia formed by periaxial cells, unilateral/bilateral to verticillate, 1-3 per node, sometimes in stichidia-like groups immersed in the thalli. The rbc L alignment positions 696- 709 5’ GAACGATATGATCTT 3’ generated in this study. TYPE SPECIES. — Stirkia fujiana (Barros-Barreto & Maggs) Barros-Barreto & Maggs, comb. nov. ETYMOLOGY. — The name Stirkia was chosen to honour Wendy A. Stirk, who worked on growth and morphogenesis of Stirkia juliae (A.Millar) Barros-Barreto & Maggs, comb. nov., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on page 27, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655

Pseudoceramium inkyui (T.O.Cho, Fredericq & S.M.Boo) Barros-Barreto & Maggs, comb. nov. Ceramium inkyui T.O.Cho, S.Fredericq & S.M.Boo, Journal of Phycology 39: 237, figs 2-6 (Cho et al. 2003). TYPE LOCALITY. — South Korea. Kyungju, on cliff below the lighthouse in Gampo. HOLOTYPE (TETRASPOROPHYTE). — South Korea. Kyungju, on cliff below the lighthouse in Gampo, 8.IX.1999 (holo-, CNUK [CNUK c000215])., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on page 27, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655, {"references":["CHO T. O., FREDERICQ S. & BOO S. M. 2003. - Ceramium inkyuii sp. nov. (Ceramiaceae, Rhodophyta) from Korea: A new species based on morphological and molecular evidence. Journal of Phycology 39: 236 - 47."]}

Ceramium glandulosum (Solander ex Turner) Barros-Barreto & Maggs, comb. nov. Fucus glandulosus Solander ex Turner, Fuci sive generi a icones et historia: 82, pl. 38 (Turner 1802). Microcladia glandulosa (Solander ex Turner) Greville, Algae britannicae 1: 99 (Greville 1830). LECTOTYPE. — Presumably England. S.l., s.d. (lecto-, designated by Maggs & Hommersand [1993], BM-K).

Pseudoceramium clarionense (Setchell & N.L.Gardner) Barros-Barreto & Maggs, comb. nov. Ceramium clarionense Setchell & N.L.Gardner, Proceedings of the California Academy of Sciences, Series 4, 19: 170, pl. 7, figs 25-27 (Setchell & Gardner 1930). TYPE LOCALITY. — Mexico. Revillagigedo Archipelago, Isla Clarión. HOLOTYPE. — Mexico. Revillagigedo Archipelago, Isla Clarión, VI.1925, H.L. Mason no. 75 (holo-, CAS [CAS 173620])., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on page 27, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655, {"references":["SETCHELL W. A. & GARDNER N. L. 1930. - Marine algae of the Revillagigedo Islands Expedition in 1925. Proceedings of the California Academy of Sciences, Series 4, 19: 109 - 215."]}

Stirkia brasiliensis (A.B.Joly) Barros-Barreto & Maggs, comb. nov. Ceramium brasiliense A.B.Joly, Boletim da Faculdade de Filosofia, Ciências e Letras, Universidade de São Paulo, Botânica 14: 148, pl. 18, fig. 1A-D (Joly 1957). TYPE LOCALITY. — Brazil. São Paulo State, Prainha, São Vicente. HOLOTYPE. — Brazil. São Paulo State, Prainha, São Vicente, 20.VII.1955, Joly 24-1955 (holo-, BM [BM000562289]).

Pseudoceramium tenerrimum (G.Martens) Barros-Barreto & Maggs, comb. nov. Ceramium tenerrimum (G.Martens) Okamura, Icones of Japanese Algae IV: 112-114, pl. 179, figs 1-7 (Okamura 1921). — Basionym: Hormoceras tenerrimum G.Martens, Die Tange. Die Preussische Expedition nach Ost-Asien. Nach Theil, Botanischer Theil: 146, pl. VIII, fig. 2 (Martens 1868). TYPE LOCALITY. — Japan. Nagasaki. HOLOTYPE. — Japan. Nagasaki, IV.1861., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on page 27, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655, {"references":["OKAMURA K. 1921. - Icones of Japanese algae. Vol. IV: 63 - 149.","MARTENS G. VON 1868. - DieTange. Die Preussische Expedition nach Ost-Asien. Nach amtlichen Quellen. Botanischer Theil. Verlag de Koniglichen Geheimen Ober-Hofbuchdruckerei, Berlin, 152 p."]}

Pseudoceramium oliveirarum Barros-Barreto, Maggs & M.A.Jaramillo, gen. nov., sp. nov. Plants mainly erect, 10-200 mm high, pseudodichotomously branched. Axes partially corticated, with apices strongly forcipate.Nodes formed by 8-9 periaxial cells each cutting off laterally 1-2 pseudoperiaxial cells. Periaxial cells also cut off two acropetal cells. Tetrasporangia formed by periaxial cells, unilateral/bilateral to verticillate, 1-3 per node, partially covered by cortical cells. TYPE LOCALITY. — Brazil. Espírito Santo, Costão, Itapemirim. HOLOTYPE. — Brazil. Espírito Santo, Costão, Itapemirim, 04.III.2004, M. B. Barreto no. 47 (holo-, RB [RB 420029]). GENBANK. — DQ458932 (rbc L), MW354756 (LSU), MW354770 (COI-5P). ETYMOLOGY. — The epithet oliveirarum was chosen to honour Eurico Cabral de Oliveira Filho and Mariana Cabral de Oliveira, father and daughter who are exemplary Brazilian phycologists. NOTES This new species circumscribes a previously known taxon, widely distributed on the Brazilian coasts, usually identified as Ceramium brevizonatum var. caraibicum. Detailed morphology and distribution are shown in Barros-Barreto & Yoneshigue-Valentin (2001) and Barros-Barreto et al. (2006). Its main morphological character is the node formed of 1-2 acropetal cells layers, 3-16 µm high, and periaxial cells cutting off 1-2 pseudoperiaxial cells 14-32 µm high. Axial cells are 60-140 µm in diameter and 42-142 µm high; 1-2 protruding unilateral tetrahedral tetrasporangia are partially covered by cortical cells 40-80 µm in diameter. This species is erected because it differs from Ceramium brevizonatum H.E.Petersen in having pseudoperiaxial cells and has a 3-4% genetic divergence for rbc L., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on page 26, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655, {"references":["BARROS-BARRETO M. B. & YONESHIGUE-VALENTIN Y. 2001. - Aspectos morfologicos do genero Ceramium (Ceramiaceae, Rhodophyta) no Estado do Rio de Janeiro. Hoehnea 28: 77 - 110.","BARROS-BARRETO M. B., MCIVOR L., MAGGS C. A. & GOMES FERREIRA P. C. 2006. - Molecular systematics of Ceramium and Centroceras (Ceramiaceae, Rhodophyta) from Brazil. Journal of Phycology 42 (4): 905 - 921. https: // doi. org / 10.1111 / j. 1529 - 8817.2006.00237. x"]}

Campylaephora sungminbooi (J.R.Hughey & G.H.Boo) Barros-Barreto & Maggs, comb. nov. Ceramium sungminbooi J.R.Hughey & G.H.Boo, Botanica Marina 59 (4): 215, figs 1-5 (21-16) (Hughey & Boo 2016). TYPE LOCALITY. — South Korea. Jindo, Hoedong, 34°25’20.6”N, 126°20’50.5”E (Hughey & Boo 2016: 215). HOLOTYPE (TETRASPOROPHYTE). — South Korea. Jindo, Hoedong, 34°25’20.6”N, 126°20’50.5”E, attached to pebbles on the mudflat, 28.II.2002, S.M. Boo, G.Y. Cho & E.C. Yang s.n. (holo-, CNUK [CNU065811]). ISOTYPES. — South Korea. Jindo, Hoedong, 34°25’20.6”N, 126°20’50.5”E, 28.II.2002 (iso-, CNUK [CNU065809, CNU065810])., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on page 25, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655, {"references":["HUGHEY J. R. & BOO G. H. 2016. - Genomic and phylogenetic analysis of Ceramium cimbricum (Ceramiales, Rhodophyta) from the Atlantic and Pacific Oceans supports the naming of a new invasive Pacific entity Ceramium sungminbooi sp. nov. Botanica Marina 59 (4): 211 - 222. https: // doi. org / 10.1515 / bot- 2016 - 0036"]}

Stirkia sinicola (Setchell & N.L.Gardner) Barros-Barreto & Maggs, comb. nov. Ceramium sinicola Setchell & N.L.Gardner, Proceedings of the California Academy of Sciences, Series 4, 12: 773, pl. 25, figs 40, 41, pl. 75 (Setchell & Gardner 1924). TYPE LOCALITY. — Mexico. Baja California, Ensenada Bay. HOLOTYPE. — Mexico. Baja California, Ensenada Bay, 7.IV.1921, Ivan M. Johnston no. 67b (holo-, UC [UC1859340])., Published as part of Barros-Barreto, Maria Beatriz, Jaramillo, Maria Alejandra, Hommersand, Max H., Ferreira, Paulo C. G. & Maggs, Christine A., 2023, Phylogenetic analysis of the red algal tribe Ceramieae reveals multiple morphological homoplasies but defines new genera, pp. 13-58 in Cryptogamie, Algologie 20 (2) on page 29, DOI: 10.5252/cryptogamie-algologie2023v44a2, http://zenodo.org/record/7938655, {"references":["SETCHELL W. A. & GARDNER N. L. 1924. - New marine algae from the Gulf of California. Proceedings of the California Academy of Sciences, Series 4, 12: 695 - 949."]}

Vertebrata fruticulosa (Wulfen) Kuntze MOLECULAR IDENTIFICATION In total 18 rbc L sequences, 16 newly determined, are available for specimens morphologically identified as Vertebrata fruticulosa from the United Kingdom, the Atlantic Iberian Peninsula and the Mediterranean. They were resolved in the rbc L phylogeny (Fig. 2) in a fully supported clade that also included sequences of V.thuyoides (Harvey) Kuntze, V. tripinnata (Harvey) Kuntze, V. subulifera (C.Agardh) Kuntze and V. furcellata (C.Agardh) Kuntze.Within this clade, specimens assigned to V. fruticulosa formed two clades that diverged by 3-3.3% (21-24 bp) and that are labelled in Figure 2 as V. fruticulosa and V. martensiana. Two haplotypes of V. fruticulosa were 0.6% (4 bp) divergent. Specimens of the V. fruticulosa clade were only found in the Mediterranean, including the Adriatic Sea, its type locality. Vertebrata martensiana has a wider distribution including the Adriatic Sea, the Atlantic Iberian Peninsula and the United Kingdom. Two haplotypes were found in the Atlantic and a third one in the Mediterranean and they diverged by 0.3-0.4% (4-6 bp). MORPHOLOGICAL OBSERVATIONS Specimens that were initially identified as Vertebrata fruticulosa (Fig. 4) were predominantly erect, attached to the substratum by short prostrate axes that bear rhizoids cut off from the pericentral cells. Thalli were composed of several main axes that bear branches pseudodichotomously at wide angles (>30°) (Fig. 4A, E, I). They were 250-900 in diameter in mid-parts of the thallus. Trichoblasts were absent or scarcely developed. Axes had 8-12 pericentral cells and were corticate (Fig. 4D, H, L). Specimens of the V. fruticulosa and V. martensiana clades can be distinguished by the morphological characters indicated below. Specimens placed in the V. fruticulosa clade had main axes of indeterminate growth that were alternately branched at regular intervals and bore alternate branches of determinate growth (Fig. 4A, B). Determinate branches, in turn, bore 2-3 orders of branches mostly every 3 segments (Fig. 4C) and were 7-9 mm in length. Axes had 11-12 pericentral cells (Fig. 4D). The specimens in the V. martensiana clade had main axes branched at irregular intervals and bore branches of determinate growth (Fig. 4E, F, I, J). Mediterranean specimens had simple or once-branched determinate branches that were 1.5 mm in length (Fig. 4G). Axes had 8-10 pericentral cells (Fig. 4H). Atlantic specimens had determinate branches 3-5 mm in length that were simple or bore up to 2 branching orders (Fig. 4K) and axes with 8-12 pericentral cells (Fig. 4L)., Published as part of Piñeiro-Corbeira, Cristina, Maggs, Christine A., Rindi, Fabio, Bunker, Francis, Baldock, Lin & Díaz-Tapia, Pilar, 2020, Molecular assessment of the tribes Streblocladieae and Polysiphonieae (Rhodomelaceae, Rhodophyta) in the British Isles reveals new records and species that require taxonomic revision, pp. 55-72 in Cryptogamie, Algologie 20 (8) on page 60, DOI: 10.5252/cryptogamiealgologie2020v41a8, http://zenodo.org/record/7827761

Vertebrata tripinnata (Harvey) Kuntze MOLECULAR IDENTIFICATION Two new sequences were obtained for specimens from Donegal (Ireland) which were identical to a sequence from Portugal. They diverged by only 0.2-0.8% (1-5 bp) from sequences from northwestern Spain and the Mediterranean. In the rbc L phylogeny Vertebrata tripinnata was placed as sister to V. subulifera with moderate support. Sequence divergence between the two species was 3.8% (Fig. 2). MORPHOLOGICAL OBSERVATIONS Thalli forming dense tufts up to 3 cm high, dark red to brown in colour, covering rocky surfaces to ca. 20 cm 2 in extent. Thalli radially organized with indeterminate erect axes becoming decumbent when developing rhizoids in their basal parts (Fig. 5A), forming an extensive system of prostrate interwoven axes and bearing unicellular rhizoids cut off from pericentral cells (Fig. 5B, C). Axes ecorticate with 17-19 pericentral cells (Fig. 5D). Erect axes rigid in texture, alternately branched up to three orders and mostly every six segments. Erect axes 150- 400 (-500) µm in diameter, with segments 0.4-0.8 (-1.75) L/D. Trichoblasts abundantly formed on every segment at the apices of erect axes and branches, dichotomously branched up to five orders (Fig. 5E), with multinucleate cells (Fig. 5F). Trichoblasts deciduous and leaving conspicuous scar cells when shed (Fig. 5G). Reproductive structures not observed., Published as part of Piñeiro-Corbeira, Cristina, Maggs, Christine A., Rindi, Fabio, Bunker, Francis, Baldock, Lin & Díaz-Tapia, Pilar, 2020, Molecular assessment of the tribes Streblocladieae and Polysiphonieae (Rhodomelaceae, Rhodophyta) in the British Isles reveals new records and species that require taxonomic revision, pp. 55-72 in Cryptogamie, Algologie 20 (8) on page 61, DOI: 10.5252/cryptogamiealgologie2020v41a8, http://zenodo.org/record/7827761

Vertebrata martensiana (Kützing) Piñeiro-Corbeira, Maggs & Díaz-Tapia, comb. nov. Polysiphonia martensiana Kützing, Phycologia generalis oder Anatomie, Physiologie und Systemkunde der Tange. Mit 80 farbig gedruckten Tafeln, gezeichnet und gravirt vom Verfasser: 432 (1843) (basionym). — Boergeseniella martensiana (Kützing) Ardré, Portugaliae Acta Biologica, Série B 10: 198 (1970). TYPE LOCALITY. — Biarritz. France (Kützing 1843)., Published as part of Piñeiro-Corbeira, Cristina, Maggs, Christine A., Rindi, Fabio, Bunker, Francis, Baldock, Lin & Díaz-Tapia, Pilar, 2020, Molecular assessment of the tribes Streblocladieae and Polysiphonieae (Rhodomelaceae, Rhodophyta) in the British Isles reveals new records and species that require taxonomic revision, pp. 55-72 in Cryptogamie, Algologie 20 (8) on page 65, DOI: 10.5252/cryptogamiealgologie2020v41a8, http://zenodo.org/record/7827761, {"references":["KUTZING F. T. 1843. - Phycologia generalis oder Anatomie, Physiologie und Systemkunde der Tange. Mit 80 farbig gedruckten Tafeln, gezeichnet und gravirt vom Verfasser. F. A. Brockhaus, Leipzig. 143 - 458 p."]}

Polysiphonia delicata Díaz-Tapia MOLECULAR IDENTIFICATION In total, 11 sequences have previously been published for Polysiphonia delicata from Spain and Australia, which represent two haplotypes, one found only in Australia and the other in both countries (Fig.2). The newly determined sequence for an English specimen was identical to sequences from Spain and Tasmania. Polysiphonia delicata was placed in the rbc L phylogeny in a highly supported clade with P.stricta (Mertens ex Dillwyn) Greville, the generitype, and eight other species. Polysiphonia delicata was sister to P. radiata Díaz-Tapia, but this relationship received low support (Fig. 2). Divergence between this pair of species was 4.1-4.2%. MORPHOLOGICAL OBSERVATIONS Thalli forming discrete tufts, 2 cm high (Fig. 7A), pink in colour and flaccid in texture. Axes ecorticate, with four pericentral cells (Fig. 7B). Prostrate axes bearing unicellular rhizoids in open connection with the pericentral cells (Fig. 7C). Erect axes 80-120 µm in diameter, composed of segments 1.5-3.5 L/D. Trichoblasts absent. Plants dioecious. Mature cystocarps slightly urceolate, 430-650 µm high and 260-400 µm in diameter (Fig. 7D)., Published as part of Piñeiro-Corbeira, Cristina, Maggs, Christine A., Rindi, Fabio, Bunker, Francis, Baldock, Lin & Díaz-Tapia, Pilar, 2020, Molecular assessment of the tribes Streblocladieae and Polysiphonieae (Rhodomelaceae, Rhodophyta) in the British Isles reveals new records and species that require taxonomic revision, pp. 55-72 in Cryptogamie, Algologie 20 (8) on pages 62-63, DOI: 10.5252/cryptogamiealgologie2020v41a8, http://zenodo.org/record/7827761

Vertebrata simulans (Harvey) Kuntze and Polysiphonia ceramiiformis P.Crouan & H.Crouan MOLECULAR IDENTIFICATION Two rbc L sequences for Vertebrata simulans and three for Polysiphonia ceramiiformis from the British Isles (four of which were newly determined) were identical, and also identical to a newly determined sequence of P.ceramiiformis from Spain. These sequences were resolved in the phylogeny in a highly supported clade including eight other members of the genus Vertebrata (Fig. 2). Relationships among members of the clade including V. simulans were unresolved. The most closely related species in the phylogeny is V. byssoides (Goodenough & Woodward) Kuntze with 5.3% divergence in the rbc L gene. Two cox 1 sequences were generated for both V. simulans and P.ceramiiformis. The three sequences from the United Kingdom including specimens morphologically identified as V.simulans and P. ceramiiformis were identical, while the sequence of P.ceramiiformis from Spain differed by 1 bp from the British specimens. MORPHOLOGICAL OBSERVATIONS Vertebrata simulans and Polysiphonia ceramiiformis are predominantly erect (Fig. 3A, D), attached to their substratum by short prostrate axes with unicellular rhizoids that are cut off from the pericentral cells. They have ecorticate axes with 10-13pericentral cells. Axes are 100-300 µm in diameter, with segments 0.3-0.8 L/D (length/diameter). Branches are formed mostly every 2-9 segments, replacing trichoblasts. Polysiphonia ceramiiformis has a soft succulent texture and branches form corymbose, characteristically forcipate apices (Fig.3 A-C). Vertebrata simulans is more slender and, in addition to indeterminate branches, it has abundant branchlets that remain short and spine-like (Fig. 3 D-F). Reproductive structures were not observed in specimens of P.ceramiiformis studied here, but tetrasporangia,spermatangia and cystocarps were described in Maggs & Hommersand (1993). Vertebrata simulans has tetrasporangia 40-70 µm in diameter, formed in short lateral branchlets, in short spiral series (Fig. 3G). Sexual reproductive structures are unknown except for the observation of spermatangia on a tetrasporophyte (Maggs & Hommersand 1993)., Published as part of Piñeiro-Corbeira, Cristina, Maggs, Christine A., Rindi, Fabio, Bunker, Francis, Baldock, Lin & Díaz-Tapia, Pilar, 2020, Molecular assessment of the tribes Streblocladieae and Polysiphonieae (Rhodomelaceae, Rhodophyta) in the British Isles reveals new records and species that require taxonomic revision, pp. 55-72 in Cryptogamie, Algologie 20 (8) on page 58, DOI: 10.5252/cryptogamiealgologie2020v41a8, http://zenodo.org/record/7827761, {"references":["MAGGS C. A. & HOMMERSAND M. H. 1993. - Seaweeds of the British Isles. Volume 1 Rhodophyta. Part 3 A Ceramiales. The Natural History Museum, London, 464 p."]}