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Caldasia

Print version ISSN 0366-5232

Abstract

GIRALDO-CANAS, DIEGO. The species of the genus Axonopus (Poaceae: Panicoideae: Paspaleae) in Mexico. Caldasia [online]. 2012, vol.34, n.2, pp.325-346. ISSN 0366-5232.

Axonopus P. Beauv. is an American genus with ca. 71 species, mainly distributed in northern South America, with some species apparently introduced to the Old World. A synopsis of the Mexican species is provided, including synonyms, ecological and geographic distribution, comments on particular morphological features, and morphological relationships of the species. The morphological relationships with Digitaria, Paspalum, and Spheneria are discussed. Axonopus deludens Chase is reduced to synonymy of Axonopus scoparius (Flüggé) Kuhlm. Axonopus capillaris (Lam.) Chase is reported for the first time for Mexico . Axonopus chrysoblepharis (Lag.) Chase and Axonopus laxiflorus (Trin.) Chase are excluded from the Mexican flora. Thus, a total of eight Axonopus species occur in Mexico .

Keywords : Axonopus; Centrochloa; Digitaria; Ophiochloa; Paspalum; Spheneria; Flora of Mexico; Neotropical grasses.

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