Marasmiellus Murrill
Index Fungorum number: IF 18016; MycoBank number: MB 18016
Notes – Marasmiellus is widely distributed throughout tropical and subtropical areas (Wilson and Desjardin 2005; Kirk et al. 2008). This genus is saprotrophic and rarely grows on living trees. Marasmiellus was previously assigned to Tricholomataceae (Singer 1986) but was later transferred to the Marasmiaceae (Kirk et al. 2008). However, phylogenetic analysis of ITS and nrLSU showed that it belonged to the Omphalotaceae (Moncalvo et al. 2002; Wilson and Desjardin 2005). Marasmiellus is characterized by basidiomes that are marasmioid-collybioid, collybioid-mycenoid or sometimes pleurotoid. Basidiomes are mostly whitish or occasionally grayish, reddish brown or dark brown in colour with ellipsoid basidiospores and hyphae having clamp connections (Singer 1973; Moncalvo et al. 2002). There are more than 400 taxa listed in Species Fungorum (2021) for this genus.
Species