Epidendrum L. (Orchidaceae, Epidendroideae) no Parque Nacional da Chapada dos Veadeiros, Estado de Goiás, Brasil

Abstract

Epidendrum L. is one of the largest genera of Orchidaceae Juss. with 2.400 neotropical species, 121 of which are present in Brazil, 69 of which are endemic. The taxonomy of Epidendrum species in the Central-West region is scarcely known and linked to floristic studies on Orchidaceae. Taxonomic treatment of Epidendrum species in the Parque Nacional da Chapada dos Veadeiros, one of the most important Permanent Preservation Areas in Brazil, is presented. Six species were found: E. avicula Lindl., E. campacci Hágsater & L. Sánchez, E. dendrobioides Thunb., E. nocturnum Jacq., E. rothii A.D. Hawkes and E. secundum Jacq., growing as epiphytes, terrestrial and rupicolous in different phytophysiognomies. The species are described and illustrated, commented on geographic distribution, morphological relationships, phenology, as well as contrasted in a dichotomous key and allocated to informal groups recognized for the genus.