Flora of Rondônia, Brazil: Malmeeae (Annonaceae)
Rodriguésia(2021)
Abstract
Abstract Annonaceae is the most species-rich family in the order Magnoliales and has a pantropical distribution, includes 109 genera and 2,440 species. It is subdivided into four subfamilies, Anaxagoreoideae, Ambavioideae, Annonoideae and Malmeoideae. The latter comprises eight tribes, including the Malmeeae, the only tribe of Malmeoideae represented in Brazil, with 13 genera and 73 species. The Amazon is the center of diversity of the tribe, with eight genera restricted to this biome, the other five genera having broader distributions. The present study sought to characterize the species of Malmeeae that occur in the state of Rondônia. Seventeen species belonging to eight genera were identified and characterized: Oxandra with five species, Bocageopsis with three, Onychopetalum, Pseudoxandra and Unonopsis with two, and Cremastosperma, Ephedranthus and Klarobelia with one species each. Bocageopsis mattogrossensis and Pseudoxandra lucida are recorded for the state for the first time. A key to the species, morphological descriptions, geographical distribution and comments are provided.
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Key words
Amazon,Brazilian Flora,Magnoliales,Malmeoideae,taxonomy
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