ABSTRACT
Convolvulaceae, including 58 genera and approximately 1880 species, have a cosmopolitan distribution with greater diversity in the tropical regions. In Brazil, 24 genera and 403 species are found in all phytogeographic domains. The Sete Cidades National Park is located in the northeastern region, Piauí State, at an ecotone between Cerrado and Caatinga. Despite the abundance of Convolvulaceae in these environments and the biodiversity potential of Piauí State, there are no floristic studies about this family published for the State. This project aimed to inventory Convolvulaceae in the PARNA Sete Cidades. For this purpose, we visited the Herbarium Graziela Barroso (TEPB) collection and also made a field expedition. The species collected were identified based on the specialized bibliography and the voucher material was deposited in the Herbarium Professor Vasconcelos Sobrinho (PEUFR). Representatives of five genera were found: Cuscuta, Daustinia, Evolvulus, Ipomoea and Jacquemontia, totaling eight species.
Keywords:
biodiversity; conservation unit; ecotone; taxonomy; vines
