Descripción y distribución de Hydnotrya cerebriformis (Discinaceae: Pezizales) en México

The genus Hydnotrya is composed of around 13 ectomycorrhizal, hypogeous, sequestrated Ascomycetes distributed exclusively in temperate forests in the northern hemisphere. This work describes and illustrates for the first time a species of this genus, Hydnotrya cerebriformis, from Mexico. The species is distributed in the Transmexican Volcanic Belt (in the Estado de México, Puebla, and Tlaxcala) and the state of Nuevo León at altitudes between 3,100 and 4,000 m, and associated mainly with Pinus hartwegii, P. montezumae, and Abies religiosa forests.