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Fungi: Basidiomycota: Agaricomycetes: Agaricales: Psathyrellaceae: Parasola plicatilis (Curtis) Redhead, Vilgalys & Hopple, 2001

Parasola plicatilis – Pleated inkcap

Synonyms: Agaricus plicatilis, Coprinus plicatilis.

Common name: pleated inkcap.

Russian name: Navoznik skladchatyy.

Extract from Wikipedia article: Parasola plicatilis is a small saprotrophic mushroom with a plicate cap (diameter up to 35 mm). It is a widely distributed species in Europe and North America. This ink cap species is a decomposer which can be found in grassy areas, alone, scattered or in small groups. The fruiting bodies grow at night after rain, and will self decompose after spore dispersion is achieved. Otherwise, they are quickly dried up in morning sunlight, or will eventually collapse beneath the weight of their caps.

AI-generated description

Parasola plicatilis is a small to medium-sized agaric fungus with a bell-shaped cap that ranges from 1-4 cm in diameter, typically brown to greyish-brown in color, and has a slender stem. In St. Petersburg, Leningrad Oblast, and north-western Russia, it is commonly found growing in groups or clusters on nutrient-rich soil, often in urban areas such as parks, gardens, and along roadsides, particularly during the summer and early autumn months. The fungus fruits from June to October, with a peak in July and August. It is considered a relatively common species in the region.

Photos of this mushroom from the area of St. Petersburg, Russia

Pleated inkcap mushroom (<B>Parasola plicatilis</B>) in Gardens of Polytechnic Institute. Saint Petersburg, Russia, <A HREF="../date-en/2017-07-29.htm">July 29, 2017</A>
LinkPleated inkcap mushroom (Parasola plicatilis) in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 29, 2017
Location on mapsPolitekhnicheskaya ul., 29к12, Sankt-Peterburg, Russia, 195251
Pleated inkcap mushroom (<B>Parasola plicatilis</B>) in Gardens of Polytechnic Institute. Saint Petersburg, Russia, <A HREF="../date-en/2017-08-19.htm">August 19, 2017</A>
LinkPleated inkcap mushroom (Parasola plicatilis) in Gardens of Polytechnic Institute. Saint Petersburg, Russia, August 19, 2017
Location on mapsPamyatnik Politekhnikam, Sankt-Peterburg, Russia, 195251
Pleated inkcap mushroom (<B>Parasola plicatilis</B>) on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, <A HREF="../date-en/2017-08-19.htm">August 19, 2017</A>
LinkPleated inkcap mushroom (Parasola plicatilis) on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, August 19, 2017
Location on mapsPamyatnik Politekhnikam, Sankt-Peterburg, Russia, 195251
Pleated inkcap mushroom (<B>Parasola plicatilis</B>) from a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, <A HREF="../date-en/2017-08-19.htm">August 19, 2017</A>
LinkPleated inkcap mushroom (Parasola plicatilis) from a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, August 19, 2017
Location on mapsPamyatnik Politekhnikam, Sankt-Peterburg, Russia, 195251

AI-generated summary of observations

Observations of Parasola plicatilis in Leningrad Oblast and north-western Russia reveal that the fungus grows in gardens and lawns, particularly in the Gardens of Polytechnic Institute in Saint Petersburg. On July 29, 2017, and August 19, 2017, the pleated inkcap mushroom was spotted in this location, indicating a possible summer habitat preference. The fungus appears to thrive on lawns, with multiple sightings recorded on August 19, 2017. These observations suggest that Parasola plicatilis is adapted to urban environments and can be found in maintained gardens and grassy areas during the warmer months. The repeated sightings in the same location imply a potential for recurrent growth patterns, possibly tied to specific environmental conditions or substrates. Further study could provide insight into the ecology and distribution of this species in the region.

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Links

Acknowledgements

Russian web-forums Planeta Gribov, V Kontakte, and Griby Sredney Polosy for learning names of local mushrooms.

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