Clitocybe parasitica

Clitocybe parasitica is classified as a plant pathogen, because in the United States it causes Clitocybe Root Rot, affecting apple, peach, cherry, and oak species.^[1] First detected in Oklahoma in 1900 and described by E.M. Wilcox the following year, C. parasitica has been found afflicting orchard trees as far north as Oregon.

Clitocybe parasitica
Scientific classification
Kingdom:	Fungi
Division:	Basidiomycota
Class:	Agaricomycetes
Order:	Agaricales
Family:	Clitocybaceae
Genus:	Clitocybe
Species:	C. parasitica
Binomial name
Clitocybe parasitica Wilcox