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Fungi: Basidiomycota: Agaricomycetes: Agaricales: Tricholomataceae: Tricholoma scalpturatum (Fr.) Quél., 1872

Tricholoma scalpturatum – Yellowing knight

Synonyms: Agaricus chrysites, Agaricus scalpturatus, Gyrophila argyracea, Tricholoma argyraceum, Tricholoma chrysites.

Common name: yellowing knight.

Russian names: Ryadovka serebristaya, Ryadovka zhelteiushchaya, Ryadovka reznaya.

Extract from Wikipedia article: Tricholoma scalpturatum is a species of agaric fungus in the family Tricholomataceae. Found in Europe, it grows in a mycorrhizal association with deciduous trees including Quercus, Fagus, Tilia, and Populus, and occasionally with Pinus.

AI-generated description

Tricholoma scalpturatum is a species of fungus that belongs to the family Tricholomataceae. It is characterized by its medium-sized cap, which is 3-6 cm in diameter, convex to flat, and often has a wavy margin. The cap surface is typically brown or grey-brown with radial fibrils. The gills are white or cream-colored, and the stem is 3-6 cm tall, cylindrical, and white or light brown. In St. Petersburg, Leningrad Oblast, and north-western Russia, Tricholoma scalpturatum has been found in coniferous and mixed forests, typically growing under spruce, pine, or fir trees. Fruitings occur from August to October, often in mossy areas or on humus-rich soil. The fungus is considered edible, but not highly prized due to its variable flavor and texture.

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

Yellowing knight mushrooms (<B>Tricholoma scalpturatum</B>) on roadside near Dibuny, north-west from Saint Petersburg. Russia, <A HREF="../date-en/2017-07-15.htm">July 15, 2017</A>
LinkYellowing knight mushrooms (Tricholoma scalpturatum) on roadside near Dibuny, north-west from Saint Petersburg. Russia, July 15, 2017
Location on mapsUnnamed Road, Sankt-Peterburg, Russia, 197758
Yellowing knight mushrooms (<B>Tricholoma scalpturatum</B>)(?) near Dibuny, north-west from Saint Petersburg. Russia, <A HREF="../date-en/2017-07-15.htm">July 15, 2017</A>
LinkYellowing knight mushrooms (Tricholoma scalpturatum)(?) near Dibuny, north-west from Saint Petersburg. Russia, July 15, 2017
Yellowing knight mushrooms (<B>Tricholoma scalpturatum</B>) on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, <A HREF="../date-en/2017-07-29.htm">July 29, 2017</A>
LinkYellowing knight mushrooms (Tricholoma scalpturatum) on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 29, 2017
Location on mapsPamyatnik Politekhnikam, Sankt-Peterburg, Russia, 195251
Yellowing knight mushrooms (<B>Tricholoma scalpturatum</B>) under trees on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, <A HREF="../date-en/2017-07-29.htm">July 29, 2017</A>
LinkYellowing knight mushrooms (Tricholoma scalpturatum) under trees on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 29, 2017
Location on mapsPamyatnik Politekhnikam, Sankt-Peterburg, Russia, 195251
Group of yellowing knight mushrooms (<B>Tricholoma scalpturatum</B>) or may be T. alboconicum in Gardens of Polytechnic Institute. Saint Petersburg, Russia, <A HREF="../date-en/2017-07-29.htm">July 29, 2017</A>
LinkGroup of yellowing knight mushrooms (Tricholoma scalpturatum) or may be T. alboconicum in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 29, 2017
Location on mapsPamyatnik Politekhnikam, Sankt-Peterburg, Russia, 195251
Young yellowing knight mushrooms (<B>Tricholoma scalpturatum</B>) in Gardens of Polytechnic Institute. Saint Petersburg, Russia, <A HREF="../date-en/2017-07-29.htm">July 29, 2017</A>
LinkYoung yellowing knight mushrooms (Tricholoma scalpturatum) in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 29, 2017
Location on mapsPamyatnik Politekhnikam, Sankt-Peterburg, Russia, 195251
Yellowing knight mushrooms (<B>Tricholoma scalpturatum</B>) in Gardens of Polytechnic Institute. Saint Petersburg, Russia, <A HREF="../date-en/2017-07-29.htm">July 29, 2017</A>
LinkYellowing knight mushrooms (Tricholoma scalpturatum) in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 29, 2017
Location on mapsPolitekhnicheskaya ul., 31, Sankt-Peterburg, Russia, 194021
Caps of yellowing knight mushrooms (<B>Tricholoma scalpturatum</B>) in Gardens of Polytechnic Institute. Saint Petersburg, Russia, <A HREF="../date-en/2017-07-29.htm">July 29, 2017</A>
LinkCaps of yellowing knight mushrooms (Tricholoma scalpturatum) in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 29, 2017
Location on mapsPolitekhnicheskaya ul., 31, Sankt-Peterburg, Russia, 194021
Yellowing knight mushrooms (<B>Tricholoma scalpturatum</B>) on roadside near Dibuny, north-west from Saint Petersburg. Russia, <A HREF="../date-en/2017-08-06.htm">August 6, 2017</A>
LinkYellowing knight mushrooms (Tricholoma scalpturatum) on roadside near Dibuny, north-west from Saint Petersburg. Russia, August 6, 2017
Yellowing knight mushrooms (<B>Tricholoma scalpturatum</B>) in Park of Polytechnic Institute. Saint Petersburg, Russia, <A HREF="../date-en/2017-09-19.htm">September 19, 2017</A>
LinkYellowing knight mushrooms (Tricholoma scalpturatum) in Park of Polytechnic Institute. Saint Petersburg, Russia, September 19, 2017
Location on mapsPamyatnik Politekhnikam, St Petersburg, Russia, 195251
Yellowing knight mushrooms (<B>Tricholoma scalpturatum</B>) on a lawn in Park of Polytechnic Institute. Saint Petersburg, Russia, <A HREF="../date-en/2017-09-19.htm">September 19, 2017</A>
LinkYellowing knight mushrooms (Tricholoma scalpturatum) on a lawn in Park of Polytechnic Institute. Saint Petersburg, Russia, September 19, 2017
Location on mapsПолитехническая ул., 29к4, St Petersburg, Russia, 195220
Yellowing knight mushrooms (<B>Tricholoma scalpturatum</B>) on roadside near Dibuny, north-west from Saint Petersburg, Russia, <A HREF="../date-en/2018-09-03.htm">September 3, 2018</A>
LinkYellowing knight mushrooms (Tricholoma scalpturatum) on roadside near Dibuny, north-west from Saint Petersburg, Russia, September 3, 2018
Location on mapsLeninskaya Tropa, Sankt-Peterburg, Russia, 197758
Yellowing knight mushrooms (<B>Tricholoma scalpturatum</B>) together with Hydnellum near Kavgolovskoe Lake in Toksovo, north from Saint Petersburg. Russia, <A HREF="../date-en/2018-09-05.htm">September 5, 2018</A>
LinkYellowing knight mushrooms (Tricholoma scalpturatum) together with Hydnellum near Kavgolovskoe Lake in Toksovo, north from Saint Petersburg. Russia, September 5, 2018
Location on mapsLeningrad Oblast, Russia, 188667

AI-generated summary of observations

Observations of Tricholoma scalpturatum in Leningrad Oblast and north-western Russia reveal that the fungus grows in various environments, including roadsides, lawns, and under trees. It was spotted near Dibuny, Saint Petersburg, and Toksovo, often in groups or alone. The mushrooms were found from July to September, with repeated sightings in the same locations over multiple years (2017-2018). They were observed in Gardens of Polytechnic Institute, Park of Polytechnic Institute, and near Kavgolovskoe Lake, indicating a wide distribution in the region. Some observations noted similarities with Tricholoma alboconicum, but most identifications were confirmed as T. scalpturatum. The fungus was often found in association with other species, such as Hydnellum. Overall, the observations suggest that T. scalpturatum is a common and widespread species in north-western Russia.

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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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