Name:		Collybia butyracea Fr., (1821) page 121
Accepted name:		Rhodocollybia butyracea (Bull.) Lennox
Basionym:		Agaricus butyraceus Bull.
Status:		Species
Taxonomic position:		Collybia (Fr.) Staude [Genus] Tricholomataceae R. Heim ex Pouzar [Family] Agaricales Underw. [Order] Agaricomycetidae [Subclass] Agaricomycetes Doweld [Class] Agaricomycotina Doweld [Subdivision / Subphylum] Basidiomycota R.T. Moore [Division / Phylum] Fungi R.T. Moore [Kingdom]
Constituent taxa:		Subspecific taxa Collybia butyracea forma asema (Fr.) Singer Collybia butyracea forma butyracea Collybia butyracea var. asema Fr. Collybia butyracea var. bibulosa (Massee) Rea Collybia butyracea var. butyracea Collybia butyracea var. rufovinosa Bon & Gaugué Collybia butyracea var. steinmannii Raithelh. Collybia butyracea var. ushuaiensis (Speg.) Raithelh.
Catalogue data:		Saccardo, Sylloge Fungorum 5: 209, Saccardo, Sylloge Fungorum 12: 931, Saccardo, Sylloge Fungorum 19: 372
Cybertruffle Resources:		Cyberliber Cumulative Index
Links:		Fungal Databases [Systematic Botany and Mycology, USDA] Genbank Google images IMI [CABI Fungus Dried Reference Collection] Index Fungorum Landcare [New Zealand] Mycobank New York Botanic Garden [Virtual Fungus Dried Reference Collection]