Abstract
The Mbaracayu Forest Nature Reserve (Reserva Natural del Bosque Mbaracayu) is one of the last remaining pieces of Atlantic forest remaining in eastern Paraguay, and the flora is composed of a mixture of tropical and temperate elements. We present here an updated checklist of the vascular plants of the Mbaracayu Forest Nature Reserve, which includes 1177 species (with 1 subspecies and 16 varieties) in 139 families and 605 genera. Four hundred and twenty three (423) of these are new records for the Reserve, 195 new records for the province of Canindeyu and 9 (with 1 subspecies) are new published records for Paraguay. Voucher specimens, local and general distribution details are provided for each taxon, and a brief analysis of the diversity and phytogeography of the flora is presented.
