Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Two new hemiepiphytic species of Clusia (C. ucamira and C. lutea) from the Amazon Forest are described and illustrated. We provide a table with the major differences between C. ucamira and the similar species C. obovata and C. octandra. Clusia lutea is a distinct species with unclear relationships. Photographs as well as scanning electron microscopy images and distribution maps for the new species are also provided. Furthermore, we propose two new combinations and an updated synonymy for some Clusia species.4149961003Fundacao de Amparo a Pesquisa do Estado de Sao Paulo - Fapesp [2012/51781-0, 2012/15542-0]CNPq [312479/2013-1]Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)