The new genus Allophylastrum (Sapindaceae) is described from Roraima, Brazil and Guyana. Allophylastrum resembles the genus Allophylus in its vegetative morphology but differs by its apetalous flowers with a cupular nectary disc, 5-6 unequal stamens, and 4- to 5- porate pollen grains. A key is provided to differentiate Allophylastrum from Allophylus. The new species Allophylastrum frutescens is described and illustrated.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3174451 | PMC |
| http://dx.doi.org/10.3897/phytokeys.5.1684 | DOI Listing |
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