A Revision of Deschampsia, Avenella, and Vahlodea (Poaceae, Poeae, Airinae) in South America1

Jorge Chiapella; Fernando O. Zuloaga

doi:10.3417/2008115

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Jorge Chiapella,^* Fernando O. Zuloaga^**

^*Laboratorio Molecular, IMBIV, Universidad Nacional de Córdoba, Vélez Sarsfield 1609, X5016GCA Córdoba, Argentina jchiapella@imbiv.unc.edu.ar.
^**Instituto de Botánica Darwinion, Labardén 200, B1642HYD San Isidro, Argentina

Abstract

A revision of the species of Deschampsia P. Beauv., Avenella (Bluff & Fingerh.) Drejer, and Vahlodea Fr. (Poaceae, Poeae, Airinae) present in South America is given. Fifteen species of Deschampsia and two monospecific genera segregated from Deschampsia—Avenella and Vahlodea—are found in the Andes of Argentina and Chile south of 30°S, typically in humid or damp sites and wetlands. Isolated populations of the cosmopolitan D. cespitosa (L.) P. Beauv. are also found in Bolivia and highlands of southern Brazil. Keys to differentiate among the species of Deschampsia and the allied genera Avenella and Vahlodea are provided. A lectotype is designated for D. berteroana (Kunth) Trin.

Citation Download Citation

Jorge Chiapella and Fernando O. Zuloaga "A Revision of Deschampsia, Avenella, and Vahlodea (Poaceae, Poeae, Airinae) in South America," Annals of the Missouri Botanical Garden 97(2), 141-162, (9 July 2010). https://doi.org/10.3417/2008115

Published: 9 July 2010

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