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5 September 2017 A new species of Chionoloma (Pottiaceae) from Central and South America with a key to Neotropical species of the genus
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Abstract

A new species of Chionoloma Dixon, C. fractum M.Alonso, M.J.Cano & J.A.Jiménez, is described from Central and South America (Argentina, Belize, Bolivia, Brazil, Colombia, Ecuador, Panama, Peru and Venezuela). The species is distinguished morphologically by lanceolate or linear leaves, with apices usually broken, leaf margins strongly sinuous, basal marginal cells forming a V-shaped pattern, dorsal surface cells of the costa quadrate-round and papillose toward apex, costa percurrent or excurrent in a short mucro and central strand present. Drawings and light microscope photographs of the new species are provided. Moreover, the principal distinctive characters that separate it from the nearest species of Chionoloma are discussed and a key to Neotropical species of the genus is provided.

Copyright ©2017 by The American Bryological and Lichenological Society, Inc.
Marta Alonso, Juan A. Jiménez, and María J. Cano "A new species of Chionoloma (Pottiaceae) from Central and South America with a key to Neotropical species of the genus," The Bryologist 120(3), (5 September 2017). https://doi.org/10.1639/0007-2745-120.3.340
Received: 8 February 2017; Accepted: 1 July 2017; Published: 5 September 2017
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