Taxonomic study of Gymnopogon (Poaceae, Chloridoideae, Cynodonteae).

CIALDELLA, A.M.; ZULOAGA, F. O.

ANNALS OF THE MISSOURI BOTANICAL GARDEN

MISSOURI BOTANICAL GARDEN

Lugar: Saint Louis, Estados Unidos de América; Año: 2011 vol. 98 p. 301 - 330

0026-6493

ABSTRACTThe present paper includes a taxonomic revision of he genus Gymnopogon P.Beauv(Poaceae,Chloridoideae,Cynodonteae),with a total of 14 species treated in this work ,including more than 40 synonyms. The genus includes perennial, occasionally annual, species, with erectto decumbent culms, ligules membranous-ciliate,blades conspicuously distichous, inflorescences with spikelets on racemiform branches, spikelets laterally compressed, 1-to4-flowered, glumes1-nerved, lemma 3 nerved, awned.S pecies distributions are mostly American, with one Asian species. A description of morphological characters, key to identify the species, descriptions, synonymy, geographicaldistribution, and illustrations of characteres of taxonomic value are also included. The name Chloris delicatula C.B.ClarkeexHook.f. ([Gymnopogon delicatulus (C.B.ClarkeexHook.f.)Bor)is lectotypified. Keywords:Chloridoideae,Cynodonteae,Gymnopogon,Poaceae.