Pinnastes

Pinnastes is a genus of fungi in the family Sclerodermataceae. It is characterized by its fleshy fruiting bodies and subterranean or semi-subterranean habit. The genus was first described in 1927 by mycologist E.J.H. Corner. Species within Pinnastes are typically found in tropical and subtropical regions, often associated with specific tree species. They are known for their tough, leathery peridium, which encloses a gleba containing spores. The spores are generally globose to subglobose and possess a rough or spiny surface. These fungi play a role in forest ecosystems, potentially forming mycorrhizal associations with trees, although this aspect requires further research. Distinguishing features within the genus often involve microscopic characteristics of the spores and the structure of the gleba. Pinnastes species are not generally considered edible and can be mistaken for other hypogeous fungi. Current research continues to explore the ecological roles and evolutionary relationships of this genus.