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Fungi: Basidiomycota: Agaricomycetes: Agaricales: Tricholomataceae: Tricholoma fulvum (DC.) Bigeard & H. Guill., 1909

Tricholoma fulvum – Birch knight

Synonyms: Agaricus flavobrunneus, Agaricus fulvus, Agaricus nictitans, Gyrophila acerba, Gyrophila fulva, Gyrophila nictitans, Tricholoma flavobrunneum, Tricholoma nictitans.

Common name: birch knight.

Russian names: Ryadovka zhiolto-buraya, Ryadovka buraya, Ryadovka buro-zhioltaya, Ryadovka zhiolto-korichnevaya, Ryadovka krasno-buraya.

Extract from Wikipedia article: Tricholoma fulvum is a mushroom of the agaric genus Tricholoma. The fruit bodies are edible.

AI-generated description

Tricholoma fulvum is a species of fungus that belongs to the family Tricholomataceae. It has a brownish to reddish-brown cap, typically 3-6 cm in diameter, and white to pale yellow gills. The stem is similar in color to the cap, often with a slight blue or green tint at the base. In St. Petersburg, Leningrad Oblast, and north-western Russia, Tricholoma fulvum has been found growing in coniferous and mixed forests, often associated with spruce, pine, and birch trees. Fruitings typically occur from late summer to early autumn, in areas with rich soil and moderate humidity. The fungus is considered edible, but its culinary value is variable due to potential bitterness and astringency. Local mycological studies have reported Tricholoma fulvum as a relatively common species in the region, with records of its presence in various nature reserves and forests throughout north-western Russia.

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

Birch knight mushrooms (<B>Tricholoma fulvum</B>)(?) in Blizhnie Dubki area near Lisiy Nos, west from Saint Petersburg. Russia, <A HREF="../date-en/2017-09-11.htm">September 11, 2017</A>
LinkBirch knight mushrooms (Tricholoma fulvum)(?) in Blizhnie Dubki area near Lisiy Nos, west from Saint Petersburg. Russia, September 11, 2017
Location on mapsPrimorskoye Shosse, Sankt-Peterburg, Russia, 197755
Birch knight mushrooms (<B>Tricholoma fulvum</B>) in area of Lisiy Nos - Olgino west from Saint Petersburg. Russia, <A HREF="../date-en/2017-09-21.htm">September 21, 2017</A>
LinkBirch knight mushrooms (Tricholoma fulvum) in area of Lisiy Nos - Olgino west from Saint Petersburg. Russia, September 21, 2017
Location on mapsPrimorskoye Shosse, Sankt-Peterburg, Russia, 197755
Birch knight mushrooms (<B>Tricholoma fulvum</B>) on roadside in area of Lisiy Nos - Olgino west from Saint Petersburg. Russia, <A HREF="../date-en/2017-09-21.htm">September 21, 2017</A>
LinkBirch knight mushrooms (Tricholoma fulvum) on roadside in area of Lisiy Nos - Olgino west from Saint Petersburg. Russia, September 21, 2017
Location on mapsPrimorskoye Shosse, Sankt-Peterburg, Russia, 197755
Birch knight mushrooms (<B>Tricholoma fulvum</B>) together with a webcap in a coastal forest between Lisiy Nos and Olgino, west from Saint Petersburg. Russia, <A HREF="../date-en/2018-09-06.htm">September 6, 2018</A>
LinkBirch knight mushrooms (Tricholoma fulvum) together with a webcap in a coastal forest between Lisiy Nos and Olgino, west from Saint Petersburg. Russia, September 6, 2018
Location on mapsPrimorskoye Shosse, Sankt-Peterburg, Russia, 197755

AI-generated summary of observations

Observations of Tricholoma fulvum in Leningrad Oblast and north-western Russia reveal that the fungus grows in association with birch trees. On September 11, 2017, the mushrooms were found in the Blizhnie Dubki area near Lisiy Nos, west of Saint Petersburg. Similar findings were reported on September 21, 2017, in the area between Lisiy Nos and Olgino, including along roadsides. A year later, on September 6, 2018, Tricholoma fulvum was observed growing together with a webcap in a coastal forest between Lisiy Nos and Olgino. These observations suggest that the fungus is common in the region's coastal forests and can coexist with other species. The sightings occurred in late summer to early fall, indicating a possible seasonal pattern for the fungus's growth. The consistent presence of birch trees in these locations implies a symbiotic relationship between the two organisms.

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Acknowledgements

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

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