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Type: Article
Published: 2020-03-25
Page range: 60–65
Abstract views: 31
PDF downloaded: 28

Studies in Austral Bryaceae (Bryopsida) I. New Combinations in Ptychostomum Hornsch. from southern South America

California Academy of Sciences, Department of Botany, 55 Music Concourse Dr., Golden Gate Park, San Francisco, CA 94118-4503, USA
Bryaceae Ptychostomum mosses South America Patagonia Tierra del Fuego Bryophytes

Abstract

The genus Ptychostomum (Bryaceae, Bryopsida) is examined from southern South America including southern Patagonia and Tierra del Fuego regions of Argentina and Chile south of 50o S latitude. Five new combinations transferred from Bryum are made; Ptychostomum dicarpum (E.B. Bartram) J.R. Spence, Ptychostomum chorizodontum (Card. & Broth.) J.R. Spence, Ptychostomum lamprochaete (Dusén) J.R. Spence, Ptychostomum pauperculum (E.B. Bartram) J.R. Spence, and Ptychostomum vernicosum (Dusén) J.R. Spence. Bryum coelophyllum is placed into synonymy under P. nivale. Bryum macrosporum is placed into synonymy under P. chorizodontum. The type of B. pallidoviride represented undetermined material that could not be assigned to any species. A preliminary key to the 20 species of Ptychostomum currently recognized for the region is presented.