Pinwheel mushrooms (Marasmius rotula) on a dry twig near Lisiy Nos, west from Saint Petersburg. Russia, September 12, 2016
Primorskoye sh., g. Sankt-Peterburg, Russia, 197755Synonyms: Agaricus rotula, Androsaceus rotula, Chamaeceras rotula, Merulius collariatus, Micromphale collariatum.
Common name: collared parachute.
Russian name: Negniiuchnik koliosovidnyy.
Extract from Wikipedia article: Marasmius rotula is a common species of agaric fungus in the family Marasmiaceae. Widespread in the Northern Hemisphere, it is commonly known variously as the pinwheel mushroom, the pinwheel marasmius, the little wheel, the collared parachute, or the horse hair fungus. The type species of the genus Marasmius, M. rotula was first described scientifically in 1772 by mycologist Giovanni Antonio Scopoli and assigned its current name in 1838 by Elias Fries.
Marasmius rotula is a small to medium-sized agaric fungus with a bell-shaped cap that ranges from 0.5-2 cm in diameter, often yellowish-brown to reddish-brown in color. In St. Petersburg and Leningrad Oblast, it typically grows on decaying leaves, twigs, and other plant debris in moist environments, such as forests, parks, and along waterways. It is commonly found during the summer and autumn months in north-western Russia, particularly in areas with rich soil and abundant organic matter. The fungus is widely distributed in the region, including in urban and rural areas, and can be identified by its distinctive cap shape and long, slender stipe.
Pinwheel mushrooms (Marasmius rotula) on a dry twig near Lisiy Nos, west from Saint Petersburg. Russia, September 12, 2016Primorskoye sh., g. Sankt-Peterburg, Russia, 197755
Caps of Pinwheel mushrooms (Marasmius rotula) near Lisiy Nos, west from Saint Petersburg. Russia, September 12, 2016Primorskoye sh., g. Sankt-Peterburg, Russia, 197755
Close up of Pinwheel mushrooms (Marasmius rotula) on a dry twig near Lisiy Nos, west from Saint Petersburg. Russia, September 12, 2016Primorskoye sh., g. Sankt-Peterburg, Russia, 197755
Pinwheel mushrooms (Marasmius rotula) near Lisiy Nos, west from Saint Petersburg. Russia, September 12, 2016Primorskoye sh., g. Sankt-Peterburg, Russia, 197755
Collared parachute mushrooms (Marasmius rotula) on a rotten tree branch in Sosnovka Park. Saint Petersburg, Russia, July 22, 2017Unnamed Road, Sankt-Peterburg, Russia
Young collared parachute mushrooms (Marasmius rotula) on a rotten tree branch in Sosnovka Park. Saint Petersburg, Russia, July 22, 2017Unnamed Road, Sankt-Peterburg, Russia
Collared parachute mushrooms (Marasmius rotula) on a tree utilization site in Sosnovka Park. Saint Petersburg, Russia, July 22, 2017Unnamed Road, Sankt-Peterburg, Russia
Close up of collared parachute mushrooms (Marasmius rotula) in Sosnovka Park. Saint Petersburg, Russia, July 22, 2017Unnamed Road, Sankt-Peterburg, Russia
Collared parachute mushroom (Marasmius rotula) near Lisiy Nos, west from Saint Petersburg. Russia, July 27, 2017Polyanskaya dor., Sankt-Peterburg, Russia, 197755
Collared parachute mushrooms (Marasmius rotula) in Gardens of Polytechnic Institute. Saint Petersburg, Russia, August 13, 2017Politekhnicheskaya ul., 29к12, Sankt-Peterburg, Russia, 195251
Collared parachute mushrooms (Marasmius rotula) in a yard near residential buildings in Saint Petersburg. Russia, August 11, 202422, проспект Раевского, Сосновка, округ Светлановское, Санкт-Петербург, Северо-Западный федеральный округ, 194064, Россия
Close-up of collared parachute mushrooms (Marasmius rotula) in a yard near residential buildings in Saint Petersburg. Russia, August 11, 202411, проспект Раевского, Сосновка, округ Светлановское, Санкт-Петербург, Северо-Западный федеральный округ, 194064, РоссияObservations of Marasmius rotula in Leningrad Oblast and north-western Russia reveal that the fungus grows on various substrates, including dry twigs, rotten tree branches, and tree utilization sites. The mushrooms were found in different locations, such as near Lisiy Nos, Sosnovka Park, Gardens of Polytechnic Institute, and residential yards in Saint Petersburg. The observations took place over several years, from 2016 to 2024, during the summer months (July to September). Close-up photographs show the distinctive caps and collared parachutes of the fungus. The mushrooms were often found in groups, with some images showing young specimens alongside mature ones. Overall, Marasmius rotula appears to be a common species in the region, thriving in urban and park environments.
Russian web-forums Planeta Gribov, V Kontakte, and Griby Sredney Polosy for learning names of local mushrooms.
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