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

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作   者：

Marta Alonso;  Juan A. Jimenez;  Maria J. Cano; 

作者机构：

Facultad de Biologta;  Spain;  30100 Murcia;  Campus de Espinardo;  Universidad de Murcia;  Departamento de Biologia Vegetal (Botdnica); 

关键词：

Chionoloma fractum;  taxonomy;  Bryophytes;  Neotropics; 

期刊名称：

Bryologist

i s s n：

0007-2745

年卷期：

2017 年 120 卷 3 期

页   码：

340-346

页   码：

摘   要：

A new species of Chionoloma Dixon, C. fractum M.Alonso, M.J.Cano & J.A.Jimenez, 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 ashort 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.