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Type: Article
Published: 2017-06-16
Page range: 265–270
Abstract views: 31
PDF downloaded: 1

Taxonomic notes on Spirotaenia (Mesotaeniaceae, Zygnematophyceae) from a Brazilian phytotelm habitat: new species and new records

Programa de Pós-Graduação em Botânica, Universidade Estadual de Feira de Santana, Av. Transnordestina, s/nº, 44036-900 Feira de Santana, BA, Brazil.
Núcleo de Ecologia, Instituto de Botânica, Av. Miguel Estéfano, nº 3687, 04301-902 São Paulo, SP, Brazil.
Programa de Pós-Graduação em Botânica, Universidade Estadual de Feira de Santana, Av. Transnordestina, s/nº, 44036-900 Feira de Santana, BA, Brazil.
algae bromeliad desmids phytotelmata

Abstract

The saccoderm desmids Spirotaenia endospira and Spirotaenia closteridia, species thus far unknown from the southern hemisphere, are described from Serra da Jiboia, northeast Brazil. Spirotaenia filiformis sp. nov. was also recorded in this area and described as new species. In the present study, Spirotaenia species were collected from Alcantarea nahoumii tanks, an endangered Brazilian bromeliad species. The newly described S. filiformis is primarily characterized by a high cell length to breadth ratio (17–31) and a parietal chloroplast with 3.5–8.5 turns. All three species were discussed for possible affiliations with other Spirotaenia taxa. From this study, the knowledge on genus Spirotaenia in Brazil has been expanded to four species currently confirmed: Spirotaenia closteridia, S. condensata, S. endospira, and S. filiformis.