Malpighiaceae Juss. in the Serra dos Carajás, Pará, Brasil
Floristic survey, Amazon, Taxonomy.
The Serra dos Carajás, located in the southeastern region of the state of Pará, is home to a group of plant formations with predominantly dense ombrophylous forest and rock fields called cangas. This set contains diverse wealth of native and endemic plant species that need to be studied by science due to intense antropic action in the region. Malpighiaceae presents incipient studies when it comes to the Brazilian Amazon, and still less in the state of Pará. In the Serra dos Carajás, the "Flora das cangas da Serra dos Carajás" project was recently carried out, which taxonomically treated the species occurring in canga, whose study family was included in this study. However, this type of vegetation represents a small part of the total area of the Serra, when compared to the vegetation of ombrophilous forest, showing little diversity of the species in the region. In this context, this study presents a taxonomic treatment of the Malpighiaceae species occurring in cangas and forest formations of Serra dos Carajás, Pará, Brazil, in order to delimit the diversity of the species in the study area, contributing to the flora of Pará and the Amazon biome. As a result of the research, excision surveys of the family incorporated in the herbs BHCB, CEPEC, IAN, MG, RB and HCJS were carried out, as well as collection expeditions in the study area. This resulted in the confirmation of 40 species distributed in 17 genera of cangas and forest formations of the Serra dos Carajás.