Extract from Wikipedia article: Protostropharia semiglobata, commonly known as the dung roundhead, the halfglobe mushroom, or the hemispheric 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.
Dung roundhead mushrooms (Protostropharia semiglobata, Stropharia semiglobata) on horse dung on roadside near Kavgolovskoe Lake in Toksovo, north from Saint Petersburg. Russia, July 14, 2017
Dung roundhead mushrooms (halfglobe, Protostropharia semiglobata, Stropharia semiglobata) on old horse dung on roadside near Kavgolovskoe Lake in Toksovo, north from Saint Petersburg. Russia, July 14, 2017
Hemispheric caps of dung roundhead mushrooms (Protostropharia semiglobata, Stropharia semiglobata) on horse dung on roadside near Kavgolovskoe Lake in Toksovo, north from Saint Petersburg. Russia, July 14, 2017
Close up of dung roundhead mushrooms (Protostropharia semiglobata, Stropharia semiglobata) on horse dung on roadside near Kavgolovskoe Lake in Toksovo, north from Saint Petersburg. Russia, July 14, 2017
Close up of hemispheric caps of dung roundhead mushrooms (Protostropharia semiglobata, Stropharia semiglobata) on horse dung on roadside near Kavgolovskoe Lake in Toksovo, north from Saint Petersburg. Russia, July 14, 2017
Dung roundhead mushrooms (Protostropharia semiglobata, Stropharia semiglobata) on horse dung in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, August 20, 2018 Rozovopavil'onnaya Alleya, Pavlovsk, Sankt-Peterburg, Russia, 196621
Close up of dung roundhead mushrooms (Protostropharia semiglobata, Stropharia semiglobata) on horse dung in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, August 20, 2018 Rozovopavil'onnaya Alleya, Pavlovsk, Sankt-Peterburg, Russia, 196621
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