Schistidium frahmianum (Bryopsida, Grimmiaceae), a new arctic species from Beringia

Ryszard Ochyra; Olga M. Afonina

doi:10.11646/bde.31.1.22

Issue: Vol. 31 No. 1: (2010)

Type: Article

Published: 2010-12-31

DOI: 10.11646/bde.31.1.22

Page range: 139–143

Abstract views: 106

PDF downloaded: 0

Schistidium frahmianum (Bryopsida, Grimmiaceae), a new arctic species from Beringia

Ryszard Ochyra⁺⁻
Olga M. Afonina⁺⁻

Laboratory of Bryology, Institute of Botany, Polish Academy of Sciences, ul. Lubicz 46, 31-512 Kraków, Poland

Laboratory of Lichenology and Bryology, Komarov Botanical Institute, Russian Academy of Sciences, ul. Professora Popova 2, 197376 Sankt Petersburg, Russia

Alaska Arctic Bryophyta Chukotka Grimmiaceae North America Russian Far East Schistidium taxonomy

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Abstract

Schistidium frahmianum Ochyra & Afonina sp. nov. is described and illustrated as a new species from Chukotka in the Russian Far East and Alaska in North America. The species belongs within subg. Canalicularia Ochyra and is closely related to S. agassizii Sull. & Lesq. but is immediately distinct in its costa which is longly excurrent as a stout terete subula and variously bistratose laminal cells at the leaf shoulders. Schistidium frahmianum is an Arctic species restricted in its occurrence to Beringia.

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