Amanita viscidolutea, a new species from Brazil with a key to Central and South American species of Amanita section Amanita

Abstract

We described and illustrated Amanita viscidolutea sp. nov. from specimens collected in the state of Rio Grande do Norte, northeastern Brazil. The main characteristics of the new species are its yellow pileus with white margin, the viscidity of the pileal surface, an exannulate stipe and inamyloid basidiospores. We also present an artificial dichotomous key to Central and South American species of Amanita (subgenus Amanita) section Amanita.

• Agaricales
• Amanitaceae
• Atlantic rainforest
• taxonomy

The authors thank Dr Jefferson Prado and Carla Puccinelli, Instituto de Botânica, who kindly revised the Latin diagnosis, Maria Cecília Tomasi, Instituto de Botânica, for inking the drawings, and the anonymous reviewers.