Collybia sordida

Collybia sordida, formerly Lepista sordida, is a species of blewit mushroom found across the Northern Hemisphere.^[1] It is known to form fairy rings.^[2]

Collybia sordida
Scientific classification
Kingdom:	Fungi
Division:	Basidiomycota
Class:	Agaricomycetes
Order:	Agaricales
Family:	Clitocybaceae
Genus:	Collybia
Species:	C. sordida
Binomial name
Collybia sordida (Schumach.) Singer
Synonyms
Agaricus sordidus Melanoleuca sordida (Schumach.) Murrill Rhodopaxillus sordidus (Schumach.) Maire Tricholoma sordidum (Schumach.) P. Kumm. Gyrophila sordida (Schumach.) Quél.