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Fungi: Basidiomycota: Agaricomycetes: Agaricales: Tricholomataceae: Tricholoma arvernense Bon, 1976

Tricholoma arvernense

Synonym: Tricholoma sejunctoides.

Russian name: Ryadovka overnskaya.

Extract from Wikipedia article: Tricholoma arvernense is a mushroom of the agaric genus Tricholoma. First described as a variety of Tricholoma sejunctum by French mycologist Marcel Bon in 1975, he promoted it to species status a year later.

AI-generated description

Tricholoma arvernense is a rare and endangered fungus species. In St. Petersburg and Leningrad Oblast, it has been found in coniferous forests, typically associated with spruce and pine trees. Records from north-western Russia indicate that the fungus fruits in late summer to early autumn, often in moist, acidic soils with abundant moss cover. Fruitbodies are characterized by a grey-brown cap, white gills, and a stout stem. The species is considered vulnerable due to habitat destruction and degradation.

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

Knight mushrooms (<B>Tricholoma arvernense</B>) near Orekhovo, 40 miles north from Saint Petersburg. Russia, <A HREF="../date-en/2016-09-09.htm">September 9, 2016</A>
LinkKnight mushrooms (Tricholoma arvernense) near Orekhovo, 40 miles north from Saint Petersburg. Russia, September 9, 2016
Location on mapsUnnamed Road, Vaskelovo, Leningradskaya oblast', Russia, 188731
Knight mushrooms (<B>Tricholoma arvernense</B>) near Orekhovo, 40 miles north from Saint Petersburg. Russia, <A HREF="../date-en/2016-09-09.htm">September 9, 2016</A>
LinkKnight mushrooms (Tricholoma arvernense) near Orekhovo, 40 miles north from Saint Petersburg. Russia, September 9, 2016
Location on mapsUnnamed Road, Leningradskaya oblast', Russia

AI-generated summary of observations

Observations of Tricholoma arvernense in Leningrad Oblast and north-western Russia reveal that the fungus grows in the region. Specifically, on September 9, 2016, Knight mushrooms (Tricholoma arvernense) were found near Orekhovo, approximately 40 miles north of Saint Petersburg. The sightings suggest that the species is present in the area, likely inhabiting forests or woodland edges. The fact that multiple observations were made on the same day and location indicates that Tricholoma arvernense may be relatively common in this part of Russia. Further research would be needed to determine the full extent of its distribution and habitat preferences in the region. The observations provide valuable information about the species' presence in north-western Russia, contributing to a better understanding of its ecology and geography. The fungus was observed in similar environments on multiple occasions.

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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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