PRESENCIA DE ANADENANTHERA COLUBRINA VAR. COLUBRINA (FABACEAE, MIMOSOIDEAE) EN ARGENTINA.

The presence of Anadenanthera colubrina var. colubrina for the Argentinean flora is confirmed. This variety is distinguished by three morphological characters: structure of the inflorescence, fruit characteristics and venation type of the folioles, being the latter very useful when studying vegetative material. The variety colubrina inhabits the same areas as var. cebil. A distribution map, illustrations and a key to identify the varieties are presented, and lectotypes are designated for Piptadenia macrocarpa and Niopa. [ABSTRACT FROM AUTHOR]