INVESTIGADORES
ZULOAGA Fernando Omar
artículos
Título:
A phylogenetic evaluation of Panicum sects. Agrostoidea, Megista, Prionitia and Tenera (Panicoideae, Poaceae): Two new genera Stephostachys and Sorengia
Autor/es:
ZULOAGA, F. O.; A. SCATAGLINI; MORRONE, O.
Revista:
TAXON
Editorial:
INT ASSOC PLANT TAXONOMY
Referencias:
Lugar: Viena; Año: 2010 vol. 59 p. 1535 - 1546
ISSN:
0040-0262
Resumen:
Abstract The taxonomic features of species of Panicum, previously classified in Panicum subg. Agrostoidea and PhanopyrumThe taxonomic features of species of Panicum, previously classified in Panicum subg. Agrostoidea and Phanopyrum including sects. Megista, Tenera, Prionitia and Agrostoidea, are here reviewed and compared with subg. Panicum and other taxa of Paniceae. All taxa, previously considered in these subgenera and sections, are now included in the new genera StephostachysMegista, Tenera, Prionitia and Agrostoidea, are here reviewed and compared with subg. Panicum and other taxa of Paniceae. All taxa, previously considered in these subgenera and sections, are now included in the new genera StephostachysStephostachys and Sorengia, which are based on morphological and molecular characters. Stephostachys includes one species,Sorengia, which are based on morphological and molecular characters. Stephostachys includes one species, S. mertensii (Roth) Zuloaga & Morrone, ranging from Mexico to Argentina, while Sorengia comprises seven species, S. anceps(Roth) Zuloaga & Morrone, ranging from Mexico to Argentina, while Sorengia comprises seven species, S. anceps (Michx.) Zuloaga & Morrone, S. caricoides (Nees ex Trin.) Zuloaga & Morrone, Sorengia longifolia (Torr.) Zuloaga & MorroneS. caricoides (Nees ex Trin.) Zuloaga & Morrone, Sorengia longifolia (Torr.) Zuloaga & Morrone S. petersonii (Hitchc. & Ekman) Zuloaga & Morrone, S. prionitis (Nees) Zuloaga & Morrone, S. stenodes (Griseb.) Zuloaga & Morrone, and S. tenera (Beyr. ex Trin.) Zuloaga & Morrone, distributed from the United States to Bolivia and Brazil. Affinities of the new genera with other genera of Paniceae are also discussed. Lectotypes are designated for Panicum caricoides var.(Hitchc. & Ekman) Zuloaga & Morrone, S. prionitis (Nees) Zuloaga & Morrone, S. stenodes (Griseb.) Zuloaga & Morrone, and S. tenera (Beyr. ex Trin.) Zuloaga & Morrone, distributed from the United States to Bolivia and Brazil. Affinities of the new genera with other genera of Paniceae are also discussed. Lectotypes are designated for Panicum caricoides var.S. tenera (Beyr. ex Trin.) Zuloaga & Morrone, distributed from the United States to Bolivia and Brazil. Affinities of the new genera with other genera of Paniceae are also discussed. Lectotypes are designated for Panicum caricoides var.Panicum caricoides var. glabriusculum Döll, P. caricoides var. pilosum Döll, P. prionitis Nees, P. prionitis var. varium Kuntze, and P. stenodes Griseb.Döll, P. caricoides var. pilosum Döll, P. prionitis Nees, P. prionitis var. varium Kuntze, and P. stenodes Griseb.