Abstract
Quiinaceae is represented in Northeast Brazil by four species and two genera: Lacunaria crenata, Quiina cruegeriana, Q. florida, and Q. glazovii. They occur in the Atlantic forest, clearly preferring wet, preserved habitats. A new synonym is presented as well as comments on geographic distribution, habitats, and diagnostic characters.
Key words:
Brazil; floristics; Atlantic rainforest; Quiina; Lacunaria