19 March 2009 Agrostopoa (Poaceae, Pooideae, Poeae, Poinae), a New Genus with Three Species from Colombia
Gerrit Davidse, Robert J. Soreng, Paul M. Peterson
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Agrostopoa Davidse, Soreng & P. M. Peterson, a new genus endemic to the páramos of Colombia, is proposed. The genus includes two new species, A. barclayae Davidse, Soreng & P. M. Peterson and A. woodii Soreng, P. M. Peterson & Davidse, and a third species transferred from Muhlenbergia Schreber, A. wallisii (Mez) P. M. Peterson, Soreng & Davidse (lectotype designated here). A key for determining the species and illustrations of the three species are provided. Agrostopoa is placed in subfamily Pooideae because it has non-Kranz anatomy and lanceolate membranous lodicules, and in tribe Poeae where it differs from Agrostis L. by having carinate lemmas with a terminal awn or mucro, well-developed paleas, and peculiar synflorescences with recurved branches and fragile pedicels. It is classified near Poa L., but differs from that in its single-flowered spikelets that lack rachilla extensions and possess awned or mucronate lemmas.

Gerrit Davidse, Robert J. Soreng, and Paul M. Peterson "Agrostopoa (Poaceae, Pooideae, Poeae, Poinae), a New Genus with Three Species from Colombia," Novon: A Journal for Botanical Nomenclature 19(1), 32-40, (19 March 2009). https://doi.org/10.3417/2007132
Published: 19 March 2009
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