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Fungi: Basidiomycota: Agaricomycetes: Agaricales: Tricholomataceae: Tricholoma ustale (Fr.) P. Kumm., 1871

Tricholoma ustale – Burnt knight

Synonyms: Agaricus fulvellus, Agaricus ustalis, Gyrophila ustalis, Tricholoma albobrunneum, Tricholoma fulvellum.

Common name: burnt knight.

Russian names: Ryadovka opalennaya, Ryadovka obozhzhionnaya, Ryadovka zagorelaya.

Extract from Wikipedia article: Tricholoma ustale, commonly known as the burnt knight, is a species of mushroom in the large genus Tricholoma. It is found in Asia, Europe, and North America, though those from North America may represent one or more different species.

AI-generated description

Tricholoma ustale is a species of mushroom that grows in association with coniferous trees. In St. Petersburg, Leningrad Oblast, and north-western Russia, it typically fruits from August to October in pine and spruce forests. The cap is 3-6 cm in diameter, grayish-brown to dark brown, and often has a distinctive umbo. The gills are pale grayish-brown, and the stem is similar in color to the cap. It is considered an edible mushroom, but not highly valued due to its bitter taste.

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

Burnt knight mushrooms (<B>Tricholoma ustale</B>) near Rappolovo and Toksovo, north from Saint Petersburg. Russia, <A HREF="../date-en/2017-09-01.htm">September 1, 2017</A>
LinkBurnt knight mushrooms (Tricholoma ustale) near Rappolovo and Toksovo, north from Saint Petersburg. Russia, September 1, 2017
Location on mapsSosnovaya Ulitsa, 17, Rappolovo, Leningradskaya oblast', Russia, 188667

AI-generated summary of observations

The fungus Tricholoma ustale was observed in Leningrad Oblast and north-western Russia, specifically near Rappolovo and Toksovo, north of Saint Petersburg. On September 1, 2017, the burnt knight mushrooms were found in this region, indicating their presence in the area during late summer. The observation suggests that Tricholoma ustale can thrive in the temperate climate of north-western Russia, likely inhabiting coniferous or mixed forests. The species may be associated with certain tree species, such as spruce or pine, which are common in this region. Further observations would be necessary to determine the specific habitat preferences and distribution patterns of Tricholoma ustale in Leningrad Oblast and surrounding areas. The discovery of this species in the region contributes to a better understanding of the mycological diversity of north-western Russia. Observations like these can inform about the ecology and conservation of fungal species.

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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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