A consideration of Bucklandiella (Bryophyta, Grimmiaceae) in South America, with a taxonomic re-assessment of Racomitrium looseri
Diversity of the Grimmiaceae subfam. Racomitrioideae in South America is briefly outlined. This subfamily is represented by three genera on this continent, namely Codriophorus P. Beauv., Bucklandiella Roiv. and Racomitrium Brid. s. str. which altogether consist of, respectively, one, 18 and three species and one subspecies. Racomitrium looseri Thér., a species described from central Chile, is taxonomically re-assessed. It is shown that this species has incorrectly been considered conspecific with R. lamprocarpum (Müll. Hal.) A. Jaeger [≡ Bucklandiella lamprocarpa (Müll. Hal.) Bednarek-Ochyra & Ochyra]. Distinctly recurved leaf margins at the base, presence of the (1–)2–3-seriate basal marginal borders of pellucid, hyaline and straight-walled cells and strongly pseudopapillose laminal and epidermal costal cells indicate the conspecificity of R. looseri with Bucklandiella orthotrichacea (Müll. Hal.) Bednarek-Ochyra & Ochyra. This species name is lectotypified and the global ranges of B. lamprocarpa and B. orthotrichacea are briefly reviewed.
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Document Type: Research Article
Publication date: June 1, 2012
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- Nova Hedwigia is an international journal publishing original, peer-reviewed papers on current issues of taxonomy, morphology, ultrastructure and ecology of all groups of cryptogamic plants, including cyanophytes/cyanobacteria and fungi. The half-tone plates in Nova Hedwigia are known for their high quality, which makes them especially suitable for the reproduction of photomicrographs and scanning and transmission electron micrographs.
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