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Molecules and Morphology in South American Stipeae (Poaceae)
Abstract We conducted phylogenetic analyses of molecular data (ITS, trnH–psbA, trnC–trnL, and trnK–rps16) for 71 species of stipoid grasses. Of these species, 30 are native to South America, sevenExpand
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Endemic species of grasses in Mexico: a phytogeographic approach
The Poaceae family includes approximately 700 genera and 10 000 species, and Mexico is considered one of its most important centers of diversity and endemism. A total of 256 taxa (including 16Expand
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Genera of New World Eragrostideae (Poaceae: Chloridoideae)
Peterson, Paul M., Robert D. Webster, and Jesus Valdes-Reyna. Genera of New World Eragrostideae (Poaceae: Chloridoideae). Smithsonian Contributions to Botany, number 87, 50 pages, 1 table. 1997.-AExpand
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The Aristida pansa complex and a key to the Divaricatae group of North America (Gramineae: Aristideae)
Variation in lateral awn length and pulvini development is described for A. pansa and A. gypsophila. The two species are distinguished by lateral awn development. Within each species, forms are basedExpand
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Novelties and notes in North American Aristida (Gramineae)
New taxa of Aristida include three related to A. schiedeana Trinius & Ruprecht (A. petersonii sp. nov., A. eludens sp. nov., and A. spanospicula sp. nov.) and one variety of A. purpurea Nuttall (var.Expand
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CALAMAGROSTIS COAHUILENSIS AND C. DIVARICATA (POACEAE: POOIDEAE: AGROSTIDINAE), TWO NEW SPECIES FROM MEXICO
Calamagrostis coahuilensis P.M. Peterson, Soreng & Valdes-Reyna, sp. nov., and Calamagrostis divaricata P. M. Peterson & Soreng, sp. nov., from Mexico are described and illustrated. CalamagrostisExpand
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