A New Genus and Species of Dipterocarpaceae from the Neotropics. I. Introduction, Taxonomy, Ecology, and Distribution

Abstract
A new genus and species of Dipterocarpaceae,Pseudomonotes tropenbosii, from Amazonian Colombia is described and illustrated. This new taxon, which appears most closely related to the subfamily Monotoideae, is the second reported occurrence of a member of the family in the Neotropics. The new entity differs from the rest of the Dipterocarpaceae in the absence of fasciculate trichomes and in having sepals conspicuously aliform (reaching 10–16 cm in length) and one ovule per locule with nearly basal (sub-basal) placentation.

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