| Hypsizygus | |
|---|---|
|   | |
| Hypsizygus tessulatus | |
| Scientific classification   | |
| Domain: | Eukaryota | 
| Kingdom: | Fungi | 
| Division: | Basidiomycota | 
| Class: | Agaricomycetes | 
| Order: | Agaricales | 
| Family: | Lyophyllaceae | 
| Genus: | Hypsizygus Singer | 
| Type species | |
| Hypsizygus tessulatus (Bull.) Singer | |
| Species | |
|  Hypsizygus ligustri  | |
Hypsizygus is a small genus of fungi that are widely distributed in north temperate regions. [1] The genus was circumscribed by Rolf Singer in 1947. [2] The common name for Hypsizygus ulmarius is the elm oyster mushroom.
The genus contains the species H. tessulatus , one of the shimeji mushrooms in Japanese cuisine.
The ITS DNA barcode of these morphospecies are close enough to be considered the same species. [3]