INVESTIGADORES
DENHAM silvia Suyai
artículos
Título:
Systematic revision and phylogeny of Paspalum subgenus Ceresia (Poaceae: Panicoideae: Paniceae)
Autor/es:
DENHAM S. S.; ZULOAGA F. O.; MORRONE O.
Revista:
ANNALS OF THE MISSOURI BOTANICAL GARDEN
Editorial:
MISSOURI BOTANICAL GARDEN
Referencias:
Año: 2002 vol. 89 p. 337 - 399
ISSN:
0026-6493
Resumen:
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Systematic revision and phylogeny of Paspalum subgenus Ceresia (Poaceae: Panicoideae: Paniceae). Twenty-five species are treated in this work, in which exomorphological characters are analyzed cladistically. Species of Ceresia are characterized by their rigid, filiform to lanceolate blades, inflorescences with one to several racemes, rachis of the racemes winged and hyaline to membranous, spikelets pilose, occasionally glabrous, with the upper anthecium pale, hyaline to membranous, occasionally chartaceous, and the upper lemma not enclosing the tip of the upper palea. Species grow in South America from Mexico to Argentina and Uruguay. A cladistic analysis of subg. Ceresia was conducted to test its monophyly, and to establish its relationship with other groups of Paspalum. A key to the species in Ceresia is given, as well as morphological description and illustration, and distribution maps.
