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Pilocosta (Melastomataceae) Revisited: A New Species, Polyploidy, and the Base Chromosome Number of the Genus

Frank Almeda
Novon
Vol. 3, No. 4 (Winter, 1993), pp. 311-316
DOI: 10.2307/3391374
Stable URL: http://www.jstor.org/stable/3391374
Page Count: 6
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Pilocosta (Melastomataceae) Revisited: A New Species, Polyploidy, and the Base Chromosome Number of the Genus
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Abstract

A synoptic review of Pilocosta is presented to facilitate identification and comparison of a new species, P. nubicola, which is described and illustrated. An original chromosome count of n = 11 is reported for this species, together with updated geographic and taxonomic notes and a revised key to the five known species in the genus. Based on an evaluation of recorded chromosome counts, x = 11 is established as the base chromosome number of Pilocosta.

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