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A New Species of Didymodon (Bryopsida) from Western North America and a Regional Key to the Taxa

Richard H. Zander
The Bryologist
Vol. 102, No. 1 (Spring, 1999), pp. 112-115
DOI: 10.2307/3244470
Stable URL: http://www.jstor.org/stable/3244470
Page Count: 4
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
A New Species of Didymodon (Bryopsida) from Western North America and a Regional Key to the Taxa
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Abstract

Didymodon norrisii Zand. is a new species of moss found in California and Oregon, U.S.A., belonging to Didymodon sect. Rufidulus (Chen) Zand. It differs most saliently from congeners by the combination of the deep brick or rose red color in KOH, costa covered by quadrate epidermal cells nearly to the leaf insertion on both sides, and apparent asexual reproduction through fragile branch apices. The new species is included in a key to the North American (north of Mexico) taxa.

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