A new species of genus Romagnesiella (Agaricales) from the mediterranean region

Abstract

Abstract
In this work Romagnesiella clavus f. mediterranea Contu is elevated to the rank of autonomous species with the name Romagnesiella contui sp. nov in honor of the Italian mycologist Marco Contu. This is based on the examination of a paratypus of the aforementioned form existing in the TENN herbarium. Furthermore, the macroscopic, microscopic and molecular examination of the taxon is carried out, comparing it with neighboring species. New collections coming from Spanish and French territories are studied. A French collection from the Alsace region is proposed as a new holotypus collection.