Rhipsalis Gärtner is a genus of epiphytic or rupicolous Cactaceae, with a wide distribution in South and Central America. It also occurs in tropical Africa and the islands of the Indian Ocean. This work concludes a study that describes the morphology of the species occurring in São Paulo state (Brazil), together with a key for identification. A total of six species with flat joints is recognized for São Paulo state.
Rhipsalis; taxonomy; flat joints