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Type: Article
Published: 2020-07-27
Page range: 24–30
Abstract views: 29
PDF downloaded: 2

A new species and a new variety of Radula Dumort. (Radulaceae, Marchantiophyta) from Brazil

Posgraduation Program in Biological Sciences–Tropical Botany (UFRA/MPEG), Museu Paraense Emílio Goeldi, Coordination of Botany, Av. Perimetral 1901, 66530-070 Belém, Brazil
Muséum National d’Histoire Naturelle, Institut de Systématique, Évolution, Biodiversité (UMR 7205), C.P. 39, 12 Rue Buffon, 75005 Paris, France
Museu Paraense Emílio Goeldi, Coordenação de Botânica, Av. Magalhães Barata 376, 66040-170, Belém, Pará, Brazil
Bryophytes Radula bahiensis Radula fendleri var. paroica Liverworts Taxonomy

Abstract

In the course of a taxonomic study of Radula in Brazil, a new species from Bahia and a new variety of R. fendleri from Rio de Janeiro were detected. The new species is characterized by plants irregularly pinnate, leaves oblong-ovate with entire to sinuate margins, cell walls with small trigones at leaf base and midleaf, increasing in size toward the leaf margins, and lobules distant to subimbricate with a rounded base, covering 2/3 to fully overlapping the stem. The new variety differs from the type variety by plants paroicous, leaf cells with trigones small or lacking, and absence of caducous leaves. A full description and illustration of the new taxa as well as comments on morphology, taxonomy, and distribution are provided.