| Protostropharia semiglobata | |
|---|---|
| |
| Growing on llama dung in South America | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Basidiomycota |
| Class: | Agaricomycetes |
| Order: | Agaricales |
| Family: | Strophariaceae |
| Genus: | Protostropharia |
| Species: | P. semiglobata
|
| Binomial name | |
| Protostropharia semiglobata (Batsch) Redhead, Moncalvo & Vilgays (2013)
| |
| Synonyms[1] | |
| |
Protostropharia semiglobata | |
|---|---|
 | Gills on hymenium |
 | Cap is convex |
 | Hymenium is adnate |
 | Stipe has a ring |
 | Spore print is purple-black |
 | Ecology is saprotrophic |
 | Edibility is edible, but unpalatable |
Protostropharia semiglobata, commonly known as the dung roundhead, the halfglobe mushroom, or the hemispherical stropharia, is an agaric fungus of the family Strophariaceae. A common and widespread species with a cosmopolitan distribution, the fungus produces mushrooms on the dung of various wild and domesticated herbivores. The mushrooms have hemispherical straw yellow to buff-tan caps measuring 1–4 cm (0.4–1.6 in), greyish gills that become dark brown in age, and a slender, smooth stem 3–12 cm (1.2–4.7 in) long with a fragile ring.