A reconsideration of Dicranoweisia calcarea

On the basis of its gymnostomous capsules, lack of a central strand in its stem, costa with two stereid bands and seepy, calcareous habitat, Dicranoweisia calcarea Bartr. is transferred to Gymnostomum. The species is similar to the Asian G. subrigidulum (Broth.) Chen and G. laxirete (Broth.) Chen in...

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Veröffentlicht in:The Bryologist 1990, Vol.93 (2), p.206-207
1. Verfasser: Allen, Bruce H.
Format: Artikel
Sprache:eng
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Zusammenfassung:On the basis of its gymnostomous capsules, lack of a central strand in its stem, costa with two stereid bands and seepy, calcareous habitat, Dicranoweisia calcarea Bartr. is transferred to Gymnostomum. The species is similar to the Asian G. subrigidulum (Broth.) Chen and G. laxirete (Broth.) Chen in leaf shape and in its smooth, firm- to thick-walled leaf cells; but differs in its decurrent leaf bases and a tendency for the basal leaf cells to be porose. Barbula jacksharpii is considered synonomous with D. calcarea. Since the eipthet calcareum is occupied in Gymnostomum, the correct name for this taxon in Gymnostomum is G. jacksharpii (Crum) Allen comb. nov.
ISSN:0007-2745
1938-4378
DOI:10.2307/3243625