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Didymodon hengduanensis (Bryophyta, Pottiaceae), a new species from the Hengduan Mountains, Southwestern China

JUAN A. JIMÉNEZ, DAVID G. LONG, JAMES R. SHEVOCK, JUAN GUERRA

Abstract


Didymodon hengduanensis is described as a new species from the Hengduan Mountains in the provinces of Sichuan and Yunnan, China. It is characterized mainly by its lanceolate to ovate-lanceolate and appressed-incurved leaves when dry, acute leaf apices, recurved to revolute margins, the yellowish color in KOH, percurrent to subpercurrent costa, and marginal basal cells forming a distinctly differentiated area of smooth and transversely thick-walled cells. Drawings and light microscope photographs of the new species are provided. The principal characters that separate it from the most similar species are discussed.


Keywords


Asia, Didymodon, Gaoligongshan, mosses, Sichuan, taxonomy, Yunnan, Bryophytes

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DOI: http://dx.doi.org/10.11646/phytotaxa.275.3.6

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ISSN 1179-3155 (print); ISSN 1179-3163 (online)

Published by Magnolia Press, Auckland, New Zealand