This work is a survey of the species of Zanthoxylum and Esenbeckia occuring in the State of Pernambuco. It was based on morphological characters of the species obtained during field trips and of specimens from 16 Brazilian herbaria. Nine species were recorded for Zanthoxylum: Z. caribaeum Lam., Z. fagara (L.) Sarg., Z. gardneri Engl., Z. hamadryadicum Pirani, Z. monogynum A. St.-Hil., Z. petiolare A. St.-Hil & Tul., Z. rhoifolium Lam., Z. stelligerum Turcz., and Z. syncarpum Tul. Esenbeckia comprised five species: E. almawillia Kaastra, E. febrifuga (A. St.Hil.) Juss. ex Mart., E. grandiflora Mart., E. leiocarpa Engl., and E. pilocarpoides Kunth. Identication keys, descriptions, ilustrations, geographic distribution, common names, and comments on the species are presented.
Zanthoxylum; Esenbeckia; Rutaceae; taxonomy; Pernambuco
