Abstract
Convolvulaceae is a predominantly tropical family and comprises between 1600 and 1700 species. Brazil is an important center of endemism of the group, but its diversity is still poorly understood and underestimated in the country. Therefore, the flora of Convolvulaceae from the Usina São José, presented here, increases the knowledge about the diversity of the family in the Northeast Brazil. Twelve species and five genera of Convolvulaceae is reported in the region: Bonamia maripoides, Evolvulus nummularius, Ipomoea bahiensis, I. hederifolia, I. nil, I. philomega, I. quamoclit, I. tiliacea, Jacquemontia glaucescens, J. sphaerostigma, Merremia macrocalyx, and M. umbellata. The treatment includes identification key, descriptions, illustrations, and comments for the taxa.
Key words:
Atlantic rainforest; floristics; liana; taxonomy; vine