Abstract (en):
As a result of recent studies on Neotropical grasses, a checklist of the South American species of Digitaria is provided. This checklist includes 65 species, of wich 53 are native (34 are endemic) and 12 are introduced-naturalized. Brazil has 48 species (12 endemic), followed by Venezuela (29/1), Paraguay (28/0), colombia (27/2), Argentina (26/1) and Bolivia (24/1). On the other hand, D. velutina (Forssk.) P. Beauv., a native species from Africa, Arabia, and Yemen, is recorded for the first time in South America. This paper includes the morphological similarities and differences between D. velutina and D. abyssinica (Hochst. ex A. Rich) Stapf. The names D. bonplandii Henrard and D. mattogrossensis (Pilg.) Henrard, are included in the synonymy of D. corynotricha (Hack.) Henrard.
Abstract (es):
Como resultado de estudios recientes en gramíneas neotropicales, se presenta el inventario del género Digitaria
para Sudamérica, el cual está representado por 65 taxones, 53 especies nativas (34 endémicas) y 12 especies introducidas-naturalizadas. La mayor riqueza específica de Digitaria se registró en Brasil (48 especies, de las cuales 12 son endémicas), seguido por Venezuela (29/1), Paraguay (28/0), Colombia (27/2), Argentina (26/1) y Bolivia (24/1). Por otra parte, se registra por primera vez para Sudamérica a D. velutina (Forssk.) P. Beauv. -una especie nativa de África, Arabia y Yemen- y se discute su similitud morfológica con D. abyssinica (Hochst. ex A. Rich.) Stapf. Los binomios D. bonplandii Henrard y D. mattogrossensis (Pilg.) Henrard, se reconocen como sinónimos de D. corynotricha (Hack.) Henrard.
Keywords:
Axonopus. Digitaria abyssinica. Flora de Colombia. Flora de Sudamérica. Gramíneas neotropicales. (es)
Axonopus, Digitaria abyssinica, Flora of Colombia, Flora of South America, Neotropical grasses (en)
Axonopus, Digitaria abyssinica, Flora of Colombia, Flora of South America, Neotropical grasses (en)
How to Cite
Giraldo-Cañas, D. (2017). Morphological and taxonomic studies in Digitaria Haller (Poaceae: Panicoideae: checklist and first report of Digitaria vetulina (Forssk.) P. Beauv. for South America. Biota Colombiana, 17(2), 19–38. https://doi.org/10.21068/C2016.v17n02a03
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