Panus lecomtei (Fr.) Corner (Agaricomycetes, Polyporales, Panaceae): first occurrence in Piauí State, Brazil

ABSTRACT

This work was aims to study and publicize Panus lecomtei as the first occurrence for Piauí State. The collections were performed in the rural areas of Joaquim Pires and Murici dos Portelas municipalities, Cipoal and Jenipapeiro communities, respectively. The expeditions took place from 2015 to 2017. The material was photographed, collected and taken to the Botany Laboratory of the Universidade Federal do Piauí (Campus Ministro Reis Velloso), where the identification by classical method was carried out studying the macroscopic characteristics with the aid of a stereoscopic microscope and microscopes under an optical. To store the material, it was placed in an kiln for drying. The specimen has a solitary, aggregate habit, found in decaying trunks, with a leathery aspect, pubescents pileus and stipe. Lamellated hymenophore. Microscopic analysis showed basidia with 4 sterigmas; ellipsoid to ovoid basidiospores; generative and skeletal hyphae; very evident connection clamp, present cheilocystidia and clavate metuloids. The data from this research contribute to the divulgation of Panus lecomtei as first occurrence in the Piauí State and for the mycological knowledge in the Northeast region of Brazil.

Keywords:
Basidiomycetes; biodiversity; northeast of Brazil; Panaceae; Polyporales