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

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-...

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Detalles Bibliográficos
Autor: Romero Zarco, Carlos Manuel
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2011
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/54655
Acceso en línea:http://hdl.handle.net/11441/54655
Access Level:acceso abierto
Palabra clave:POACEAE – Avena – Arrhenatherum – Pseudarrhenatherum – Avenula – Helictochloa – Tricholemma – Helictotrichon – Oat grasses – Taxonomy
Descripción
Sumario: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.