Two new records of Digitaria sect. Digitaria (Poaceae) from Venezuela and the New World

  • Shingo Nozawa Instituto Experimental Jardín Botánico, Universidad Central de Venezuela (UCV)
  • José R. Grande Allende Herbario MERF, Facultad de Farmacia y Bioanálisis, Universidad de Los Andes (ULA) and Postgrado en Botánica, Facultad de Ciencias, Universidad Central de Venezuela (UCV)
  • Yasushi Ibaragi Tokushima Prefectural Museum, Bunka-no-mori park
Keywords: Digitaria radicosa, , Digitaria velutina, Poaceae, Venezuela, range extension, Neotropics, weeds, invasive

Abstract

Digitaria radicosa is reported for the first time from the New World. The voucher specimens are from lawn gardens and sidewalks in Caracas, the capital city of Venezuela, and can be identified by its essentially smooth rachis margin. Additionally, Digitaria velutina is reported new for the Venezuelan flora. The specimens came from disturbed sites of the Andes and Coastal Cordillera, above 1500 m elevation. Digitaria velutina is recognized by its inflorescence ramification, clearly branched in the lowest racemes, and also by having the smallest spikelets among the Venezuelan species of section Digitaria. A key is provided for the section.

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Published
2017-07-24
How to Cite
Nozawa, S., Grande Allende, J. R., & Ibaragi, Y. (2017). Two new records of Digitaria sect. Digitaria (Poaceae) from Venezuela and the New World. Journal of the Botanical Research Institute of Texas, 11(1), 169-173. https://doi.org/10.17348/jbrit.v11.i1.1149