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1 July 2012 Ptychostomum pacificum (Bryaceae), a new Fen Species from California, Oregon, and Western Nevada, USA
John R. Spence, James R. Shevock
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Abstract

Ptychostomum pacificum J. R. Spence & Shevock, a new and highly distinctive species restricted to fen habitats within coniferous forests in California, Oregon, and extreme western Nevada is described and illustrated. This species appears to be related to P. turbinatum (Hedw.) J. R. Spence but is easily distinguished by a combination of features including large size, percurrent yellowish-brown costa with numerous incrassate cells at the leaf tip, strongly recurved leaf margins, and elongate cylindrical to narrowly pyriform capsules.

John R. Spence and James R. Shevock "Ptychostomum pacificum (Bryaceae), a new Fen Species from California, Oregon, and Western Nevada, USA," Madroño 59(3), 156-162, (1 July 2012). https://doi.org/10.3120/0024-9637-59.3.156
Published: 1 July 2012
JOURNAL ARTICLE
7 PAGES


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KEYWORDS
Bryum
Cascades
Mosses
Sierra Nevada
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