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

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.