Journal article Open Access

NEW COMBINATIONS AND NEW NAMES IN AMERICAN CINNAGROSTIS, PEYRITSCHIA, AND DESCHAMPSIA, AND THREE NEW GENERA: GREENEOCHLOA, LAEGAARDIA AND PARAMOCHLOA (POEAE, POACEAE)

Paul M Peterson; Robert J Soreng; Konstantin Romaschenko; Patricia Barberá; Alejandro Quintanar; Carlos Aedoe

Based on morphological and molecular evidence we present new combinations or new names for 77 taxa of Cinnagrostis, seven taxa of Deschampsia, and 24 taxa of Peyritschia; and describe three new genera, Greeneochloa P.M. Peterson, Soreng, Romasch. & Barberá, gen. nov. (subtribe Echinopogoninae), Paramochloa P.M. Peterson, Soreng, Romasch. & Barberá, gen. nov. (subtribe Calothecinae), and Laegaardia P.M. Peterson, Soreng, Romasch. & Barberá, gen. nov. (subtribe Calothecinae) with two, two and one species, respectively. In addition to the 116 new taxonomic entities, we provide a key to the genera of American grasses presently or formerly treated in Calamagrostis or Deyeuxia and generic emendations for Cinnagrostis and Peyritschia.

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