Flora of usina são josé, igarassu, pernambuco: Chrysobalanaceae, humiriaceae, lacistemataceae and trigoniaceae

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.