Dung roundhead mushrooms (Protostropharia semiglobata, Stropharia semiglobata) on horse dung on roadside near Kavgolovskoe Lake in Toksovo, north from Saint Petersburg. Russia, July 14, 2017Synonyms: Agaricus nitens, Agaricus semiglobatus, Agaricus stercorarius, Agaricus virosus, Coprinus semiglobatus, Fungus semiglobatus, Geophila semiglobata, Geophila stercoraria, Psalliota semiglobata, Psalliota stercoraria, Psilocybe semiglobata, Stropharia semiglobata, Stropharia stercoraria.
Common name: dung roundhead.
Russian names: Strofariya polusharovidnaya, Troyshling polukruglyy.
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.
Protostropharia semiglobata is a species of fungus that belongs to the family Strophariaceae. It is characterized by its small to medium-sized fruiting bodies with hemispherical to convex caps, typically 1-4 cm in diameter, and a smooth, often wrinkled surface. The fungus grows on dung, particularly horse and cow dung, in fields, meadows, and roadsides. In St. Petersburg, Leningrad Oblast, and north-western Russia, Protostropharia semiglobata has been found to fruit from May to October, with a peak in summer months. It is considered a relatively common species in the region, often occurring in association with other coprophilous fungi.
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, 2018Rozovopavil'onnaya Alleya, Pavlovsk, Sankt-Peterburg, Russia, 196621In Leningrad Oblast and north-western Russia, observations of Protostropharia semiglobata were recorded in various locations. The fungus was found growing on horse dung on roadsides near Kavgolovskoe Lake in Toksovo, with hemispheric caps observed on July 14, 2017. Similar findings were noted in Pavlovsk Park, a suburb of Saint Petersburg, on August 20, 2018, where the mushrooms grew on horse dung. Close-up observations revealed detailed characteristics of the fungus, including its caps and growth habits. The species was identified as Protostropharia semiglobata, also known as Stropharia semiglobata or dung roundhead mushroom. These observations suggest that the fungus is present in the region and can be found in areas with horse dung, particularly in summer and late summer months.
Russian web-forums Planeta Gribov, V Kontakte, and Griby Sredney Polosy for learning names of local mushrooms.
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