Helictochloa Romero Zarco (Poaceae), a new genus of oat grass

Description

Morphological and anatomical characters used to separate the genera related to Avena L. (Poaceae: Aveneae) are analyzed. The taxonomic importance of these characters is discussed with regard to recent molecular studies. Six genera of peren- nial oats are recognized: Arrhenatherum P. Beauv., Pseudar- rhenatherum Rouy, Helictotrichon Besser, Avenula (Dumort.) Dumort., Tricholemma (Röser) Röser and Helictochloa Romero Zarco (described here) is accepted. New combinations for the species included in Helictochloa are proposed. A key to Avena related genera from the Mediterranean region is given.

Abstract

Dirección General de Investigación Científica y Técnica CGL2006-00817

Abstract

Dirección General de Investigación Científica y Técnica CGL2009-08178

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