Passifloraceae s.s. na Chapada do Araripe, nordeste do Brasil

Abstract

The Chapada do Araripe is located between the states Ceará, Pernambuco and Piauí, covers different phytophysiognomies and recognized by high biological diversity and endemisms. The aimed with this floristic survey was to identify species of the Passifloraceae s.s. to the Chapada do Araripe, as well as know geographic distribution associated with preferred habitats and phenology, aiming to know better local flora. Field collections were performed from February to June/2020 in several municipalities and the resulting collection is deposited at the Herbário Caririense Dárdano de Andrade Lima-HCDAL. The identifications of the species was based on the analysis of morphological characteristics of samples collected in the field and exsiccates from herbariums CEN, EAC, HCDAL, HST, IPA, MBM, PEUFR and UFP, complementered with assistance of specialized bibliographies. In the Chapada do Araripe nine taxa of Passifora were recorded, preferably occurring in the Dense Ombrophylous Forest (Mata Úmida), but also there are records in the Seasonal Semideciduous Forest (Mata Seca), Savanna (Cerrado), Florested Savanna (Cerradão), Stepic Savanna (Caatinga/Carrasco), Arboreus Stepic Savanna (Caatinga Arbórea) and transition zone of Savanna/ Seasonal Semideciduous Forest. Passifloraceae s.s. is well represented in the Chapada do Araripe, are indicated unpublished collections for some municipalities, in addiction is necessary greater effort to collect in Piaui State. Keywords: Diversity, flora, Neotropical region, vegetation.