| Myriostoma | |
|---|---|
| |
| Myriostoma calongei, Bolivia | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Basidiomycota |
| Class: | Agaricomycetes |
| Order: | Geastrales |
| Family: | Geastraceae |
| Genus: | Myriostoma Desv. (1809) |
| Type species | |
| Myriostoma anglicum Desv. (1809)
| |
| Species | |
| Synonyms | |
| |
Myriostoma is a fungal genus in the family Geastraceae. Basidiocarps resemble earthstars, but the spore sac is supported by multiple columns (instead of a single column) and has multiple ostioles instead of a single, apical ostiole. Until 2017, the genus was thought to be monotypic with a single, widespread species, Myriostoma coliforme. Recent research has, however, shown that at least six species occur worldwide.