| Cleistocybe | |
|---|---|
|   | |
| Cleistocybe vernalis, Washington, USA | |
| Scientific classification   | |
| Domain: | Eukaryota | 
| Kingdom: | Fungi | 
| Division: | Basidiomycota | 
| Class: | Agaricomycetes | 
| Order: | Agaricales | 
| Family: | Biannulariaceae | 
| Genus: | Cleistocybe Ammirati, A.D.Parker & Matheny (2007) | 
| Type species | |
| Cleistocybe vernalis Ammirati, A.D.Parker & Matheny (2007) | |
| Species | |
|  C. carneogrisea  | |
Cleistocybe is a genus of fungi in the family Biannulariaceae. [1]  Basidiocarps (fruit bodies) are agaricoid, similar to those of  Clitocybe , but with ephemeral traces of a partial veil and decurrent lamellae that are often greyish. The genus is separated on DNA characteristics as well as morphology. [2]  Species are known from North America, Europe, North Africa, and Tibet. [2]  [3]  [4]  [5]  [1]