Abstract
Here we provide an updated distribution and taxonomic notes on Cosmarium redimitum, an endemic species from South America. In addition, a new variety is proposed and the zygospore of that species is described for the first time, based on material from Bahia, northeastern Brazil.
References
<p>Bicudo, C.E.M., Araújo, A. & Biolo, S. (2019) <em>Flora Ficológica do Estado de São Paulo. Parte 3: Zygnematophyceae</em>. 1. ed. Vol. 4. RiMa Editora, São Paulo, pp. 1–309.</p>
<p>Bicudo, C.E.M. & Menezes, M. (2017) <em>Gêneros de algas de águas continentais do Brasil: chave para identificação e descrições</em>. RiMa Editora, São Carlos, 552 pp.</p>
<p>Biolo, S. & Bicudo, C.E.M. (2018) Checklist of the genus <em>Cosmarium</em> (Zygnematophyceae, Streptophyta) from Brazil. <em>Biodiversity International Journal</em> 2: 452–454. https://doi.org/10.15406/bij.2018.02.00099</p>
<p>Borge, O. (1899) Ueber tropische und subtropische Süsswasser-Chlorophyceen. <em>Bihang til Kongliga Svenska Vetenskaps-Akademiens Handlingar</em> 24 (Afd. III, 12): 1–33.</p>
<p>Borge, O. (1925) Die von Dr. F.C. Hoehne während der Expedition Roosevelt-Rondon gesammelten Süsswassernalgen. <em>Arkiv for Botanik</em> 19: 1–56.</p>
<p>Coesel, P.F.M. (1996) Desmid assemblies along altitude gradients in Colombia. <em>Nova Hedwigia</em> 55: 353–366.</p>
<p>Coesel, P.F.M. (1996) Biogeography of desmids. <em>Hydrobiologia</em> 336: 41–53. https://doi.org/10.1007/978-94-017-0908-8_4</p>
<p>Coesel, P.F.M. & Van Geest, A. (2017) New or otherwise interesting desmid taxa from the Bangweulu region (Zambia). 3. Genus <em>Cosmarium</em> (Desmidiales). <em>Plant Ecology and Evolution</em> 150: 331–342. https://doi.org/10.5091/plecevo.2017.1316</p>
<p>Couté, A. & Tell, G. (1981) Ultrastructure de la paroi cellulaire des Desmidiacées au microscope électronique à la balayage. <em>Beihefte zur Nova Hedwigia</em> 68: 1–228.</p>
<p>Duque, S., Marciales-Caro, L.J., Castro-Roa, D., Cano, M.G., Calderón-Chérrez, M.J. & Echenique, R.O. (2013) Las algas desmidiáceas como indicadoras: Mateyuca y Flor Amarilla, dos morichales testigo de la biodiversidad del Orinoco.<em> In: </em>Lasso, C., Rial, A. & González-B, V. (Eds.) <em>VII. Morichales y cananguchales de la Orinoquia y Amazonia: Colombia-Venezuela. Parte I.</em> <em>Serie Recursos Hidrobiológicos y Pesqueros Continentales de Colombia. </em>Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, Bogotá. pp. 151–161.</p>
<p>Förster, K. (1964) Desmidiaceen aus Brasilien, 2: Bahia, Goyaz, Piauhy und Nord- Brasilien. <em>Hydrobiologia</em> 23: 321–505. https://doi.org/10.1007/BF00179497</p>
<p>Förster, K. (1969) Amazonische Desmidieen 1. Teil: Areal Santarém. <em>Amazoniana </em>2 (1/2): 5–116.</p>
<p>Förster, K. (1982) Conjugatophyceae Zygnematales und Desmidiales (excl. Zygnemataceae).<em> In: Das Phytoplankton des Süßwassers Systematik und Biologie </em>[Band] 8. Teil 1. Hälfte. pp. [i]–viii, [1]–543. Stuttgart: E. Schweizerbart’sche Verlangbuchhandlung (Nägele u. Obermiller).</p>
<p>Grönblad, R. (1945) De algis brasiliensibus. Praecipue desmidiaceis in regione inferiore fluminis Amazonas a professore August Ginzberger (Wien). Anno MCMXXVII collectis. <em>Acta Societatis Scienctiarum Fennicae, Nova Series B </em>2: 1–44.</p>
<p>Guiry, M.D. & Guiry, G.M. (2021) AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. Available from: http://www.algaebase.org (accessed 19 January 2021)</p>
<p>Oliveira, C.J.M (2000) - <em>Le phytoplancton estuarien de deux fleuves de Guyane francaise (l’Iracoubo et le Sinnamary): Caracterisation du milieu, composition et diversite specifique. </em>PhD Thesis. l’Universite Paris 6, Paris, 258 pp.</p>
<p>Pereira, T.V. (2011) <em>Taxonomia do gênero Cosmarium (Zygnemaphyceae, Chlorophyta) em áreas úmidas do Centro de Instruções de Formosa, GO</em>. Universidade Católica de Brasília. 45pp.</p>
<p>Ramos, G.J.P., Bicudo, C.E.M. & Moura, C.W.N. (2017) <em>Cosmarium bahianum</em>, <em>sp. nov.</em> (Desmidiaceae), a new desmid species from a phytotelm habitat in the Brazilian restinga. <em>Phytotaxa</em> 291 (1): 66–72. https://doi.org/10.11646/phytotaxa.291.1.6</p>
<p>Ramos, G.J.P., Costa, F.M.; Santos, M.A. & Moura, C.W.N. (2019) Taxonomic novelties, new records, and rare species of desmids from the Chapada Diamantina region, Brazil. <em>Phytotaxa</em> 391 (3): 185–196. https://doi.org/10.11646/phytotaxa.391.3.2</p>
<p>Ramos, G.J.P., Santos, M.A, Oliveira, I.B. & Moura, C.W.N. (2020) Taxonomic and nomenclatural notes on five taxa of <em>Cosmarium </em>(Desmidiaceae, Zygnematophyceae) from Brazil. <em>Notulae Algarum</em> 146: 1–5.</p>
<p>Ramos, G.J.P., Santos, M.A & Moura, C.W.N. (2021a) How hidden is the diversity of the genus <em>Cosmarium</em> (Desmidiaceae) in the Brazilian Caatinga? <em>Acta Botanica Brasilica.</em> [in press] https://doi.org/10.1590/0102-33062020abb0370</p>
<p>Ramos, G.J.P., Santos, M.A & Moura, C.W.N. (2021b) Taxonomic notes on some <em>Cosmarium</em> species (Desmidiaceae, Zygnematophyceae) from Brazil. <em>Phytotaxa</em> 483 (3): 291–299. https://doi.org/10.11646/phytotaxa.483.3.9</p>
<p>Salazar, C. & Guarrera, S. (2000) <em>Cosmarium</em>, <em>Actinotaenium</em> and <em>Cosmocladium</em> (Desmidiaceae, Chlorophytes) associated to Gramineae, with the proposition of four new taxa for science. <em>Acta Biologica Venezuelica</em> 20 (3): 1–16</p>
<p>Saturnino, M., Sophia, M.G. & Melo, S. (2020) O Gênero <em>Cosmarium </em>Corda Ex Ralfs (Zygnemaphyceae, Desmidiaceae) De Um Lago De Inundação Da Bacia Do Rio Tapajós, Amazônia, Brasil. <em>Biota Amazônia</em> 10 (3): 58–64. http://dx.doi.org/10.18561/2179-5746/biotaamazonia.v10n3p58-64</p>
<p>Sophia, M.G. & Dias, I.C.A. (1996) Algas de três ambientes de águas claras do município de Parintins, estado do Amazonas, Brasil: Oedogoniophyceae e Zygnemaphyceae. <em>Hoehnea </em>23 (2): 59–80</p>
<p>Thérézien, Y. (1985) Contribution à l’étude des algues d’eau douce de la Guyane Française (à l’exclusion des Diatomées). <em>Bibliotheca Phycologica</em> 72: 5–275.</p>
<p>Thomasson, K. (1971) Amazonian algae. <em>Mémoires Institut Royale des Sciences Naturelle de Belgique, ser. 2</em> 86: 1–57.</p>
<p>Bicudo, C.E.M. & Menezes, M. (2017) <em>Gêneros de algas de águas continentais do Brasil: chave para identificação e descrições</em>. RiMa Editora, São Carlos, 552 pp.</p>
<p>Biolo, S. & Bicudo, C.E.M. (2018) Checklist of the genus <em>Cosmarium</em> (Zygnematophyceae, Streptophyta) from Brazil. <em>Biodiversity International Journal</em> 2: 452–454. https://doi.org/10.15406/bij.2018.02.00099</p>
<p>Borge, O. (1899) Ueber tropische und subtropische Süsswasser-Chlorophyceen. <em>Bihang til Kongliga Svenska Vetenskaps-Akademiens Handlingar</em> 24 (Afd. III, 12): 1–33.</p>
<p>Borge, O. (1925) Die von Dr. F.C. Hoehne während der Expedition Roosevelt-Rondon gesammelten Süsswassernalgen. <em>Arkiv for Botanik</em> 19: 1–56.</p>
<p>Coesel, P.F.M. (1996) Desmid assemblies along altitude gradients in Colombia. <em>Nova Hedwigia</em> 55: 353–366.</p>
<p>Coesel, P.F.M. (1996) Biogeography of desmids. <em>Hydrobiologia</em> 336: 41–53. https://doi.org/10.1007/978-94-017-0908-8_4</p>
<p>Coesel, P.F.M. & Van Geest, A. (2017) New or otherwise interesting desmid taxa from the Bangweulu region (Zambia). 3. Genus <em>Cosmarium</em> (Desmidiales). <em>Plant Ecology and Evolution</em> 150: 331–342. https://doi.org/10.5091/plecevo.2017.1316</p>
<p>Couté, A. & Tell, G. (1981) Ultrastructure de la paroi cellulaire des Desmidiacées au microscope électronique à la balayage. <em>Beihefte zur Nova Hedwigia</em> 68: 1–228.</p>
<p>Duque, S., Marciales-Caro, L.J., Castro-Roa, D., Cano, M.G., Calderón-Chérrez, M.J. & Echenique, R.O. (2013) Las algas desmidiáceas como indicadoras: Mateyuca y Flor Amarilla, dos morichales testigo de la biodiversidad del Orinoco.<em> In: </em>Lasso, C., Rial, A. & González-B, V. (Eds.) <em>VII. Morichales y cananguchales de la Orinoquia y Amazonia: Colombia-Venezuela. Parte I.</em> <em>Serie Recursos Hidrobiológicos y Pesqueros Continentales de Colombia. </em>Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, Bogotá. pp. 151–161.</p>
<p>Förster, K. (1964) Desmidiaceen aus Brasilien, 2: Bahia, Goyaz, Piauhy und Nord- Brasilien. <em>Hydrobiologia</em> 23: 321–505. https://doi.org/10.1007/BF00179497</p>
<p>Förster, K. (1969) Amazonische Desmidieen 1. Teil: Areal Santarém. <em>Amazoniana </em>2 (1/2): 5–116.</p>
<p>Förster, K. (1982) Conjugatophyceae Zygnematales und Desmidiales (excl. Zygnemataceae).<em> In: Das Phytoplankton des Süßwassers Systematik und Biologie </em>[Band] 8. Teil 1. Hälfte. pp. [i]–viii, [1]–543. Stuttgart: E. Schweizerbart’sche Verlangbuchhandlung (Nägele u. Obermiller).</p>
<p>Grönblad, R. (1945) De algis brasiliensibus. Praecipue desmidiaceis in regione inferiore fluminis Amazonas a professore August Ginzberger (Wien). Anno MCMXXVII collectis. <em>Acta Societatis Scienctiarum Fennicae, Nova Series B </em>2: 1–44.</p>
<p>Guiry, M.D. & Guiry, G.M. (2021) AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. Available from: http://www.algaebase.org (accessed 19 January 2021)</p>
<p>Oliveira, C.J.M (2000) - <em>Le phytoplancton estuarien de deux fleuves de Guyane francaise (l’Iracoubo et le Sinnamary): Caracterisation du milieu, composition et diversite specifique. </em>PhD Thesis. l’Universite Paris 6, Paris, 258 pp.</p>
<p>Pereira, T.V. (2011) <em>Taxonomia do gênero Cosmarium (Zygnemaphyceae, Chlorophyta) em áreas úmidas do Centro de Instruções de Formosa, GO</em>. Universidade Católica de Brasília. 45pp.</p>
<p>Ramos, G.J.P., Bicudo, C.E.M. & Moura, C.W.N. (2017) <em>Cosmarium bahianum</em>, <em>sp. nov.</em> (Desmidiaceae), a new desmid species from a phytotelm habitat in the Brazilian restinga. <em>Phytotaxa</em> 291 (1): 66–72. https://doi.org/10.11646/phytotaxa.291.1.6</p>
<p>Ramos, G.J.P., Costa, F.M.; Santos, M.A. & Moura, C.W.N. (2019) Taxonomic novelties, new records, and rare species of desmids from the Chapada Diamantina region, Brazil. <em>Phytotaxa</em> 391 (3): 185–196. https://doi.org/10.11646/phytotaxa.391.3.2</p>
<p>Ramos, G.J.P., Santos, M.A, Oliveira, I.B. & Moura, C.W.N. (2020) Taxonomic and nomenclatural notes on five taxa of <em>Cosmarium </em>(Desmidiaceae, Zygnematophyceae) from Brazil. <em>Notulae Algarum</em> 146: 1–5.</p>
<p>Ramos, G.J.P., Santos, M.A & Moura, C.W.N. (2021a) How hidden is the diversity of the genus <em>Cosmarium</em> (Desmidiaceae) in the Brazilian Caatinga? <em>Acta Botanica Brasilica.</em> [in press] https://doi.org/10.1590/0102-33062020abb0370</p>
<p>Ramos, G.J.P., Santos, M.A & Moura, C.W.N. (2021b) Taxonomic notes on some <em>Cosmarium</em> species (Desmidiaceae, Zygnematophyceae) from Brazil. <em>Phytotaxa</em> 483 (3): 291–299. https://doi.org/10.11646/phytotaxa.483.3.9</p>
<p>Salazar, C. & Guarrera, S. (2000) <em>Cosmarium</em>, <em>Actinotaenium</em> and <em>Cosmocladium</em> (Desmidiaceae, Chlorophytes) associated to Gramineae, with the proposition of four new taxa for science. <em>Acta Biologica Venezuelica</em> 20 (3): 1–16</p>
<p>Saturnino, M., Sophia, M.G. & Melo, S. (2020) O Gênero <em>Cosmarium </em>Corda Ex Ralfs (Zygnemaphyceae, Desmidiaceae) De Um Lago De Inundação Da Bacia Do Rio Tapajós, Amazônia, Brasil. <em>Biota Amazônia</em> 10 (3): 58–64. http://dx.doi.org/10.18561/2179-5746/biotaamazonia.v10n3p58-64</p>
<p>Sophia, M.G. & Dias, I.C.A. (1996) Algas de três ambientes de águas claras do município de Parintins, estado do Amazonas, Brasil: Oedogoniophyceae e Zygnemaphyceae. <em>Hoehnea </em>23 (2): 59–80</p>
<p>Thérézien, Y. (1985) Contribution à l’étude des algues d’eau douce de la Guyane Française (à l’exclusion des Diatomées). <em>Bibliotheca Phycologica</em> 72: 5–275.</p>
<p>Thomasson, K. (1971) Amazonian algae. <em>Mémoires Institut Royale des Sciences Naturelle de Belgique, ser. 2</em> 86: 1–57.</p>