Abstract
Malpighiales comprises 36 families with large morphological heterogeneity and is represented by several species in the Atlantic rain forest along the Brazilian coast. This article is part of a series of taxonomic monographs of families occurring on fragments of Atlantic Forest from Usina São José (USJ), Igarassu, Pernambuco. Treatments to four families of Malpighiales are presented: Chrysobalanaceae, Humiriaceae, Lacistemataceae and Trigoniaceae. Fieldwork was conducted in six fragments, between 2009 and 2017, in addition to visits to herbaria. Nine taxa were found: Chrysobalanaceae is represented by six species, and the other families have a single species each. Most species are widely distributed in South America, except for Couepia rufa, Moquilea tomentosa and Lacistema robustum, which are endemic to the Atlantic Forest. A key to species, descriptions, comments and illustrations are also provided.
Key words:
Malpighiales; Atlantic Forest; taxonomy
