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Catasetum vinaceum is accepted species in  the family Orchidaceae  subfamily: Epidendroideae, tribe: Cymbidieae, subtribe: Catasetinae,  
Genus Catasetum   subgenus Catasetum  section: Isoceras   subsection: Convergentes 
This species is found in WC. Brazil (to Rondônia).