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Fungi: Basidiomycota: Agaricomycetes: Agaricales: Tricholomataceae: Tricholoma portentosum (Fr.) Quél., 1873

Tricholoma portentosum – Coalman

Synonyms: Agaricus portentosus, Gyrophila portentosa, Gyrophila sejuncta, Melanoleuca portentosa.

Common name: coalman.

Russian names: Ryadovka seraya, Ryadovka shtrikhovataya, Ryadovka strannaya, Podsosnovik, Podzelionka, Seryy pesochnik, Serushka.

Extract from Wikipedia article: Tricholoma portentosum, commonly known as the charbonnier, or sooty head in North America, is a grey-capped edible mushroom of the large genus Tricholoma. It is found in woodlands in Europe and North America.

AI-generated description

Tricholoma portentosum is a species of mushroom found in northern Europe, including north-western Russia. In St. Petersburg and Leningrad Oblast, it typically grows in coniferous forests, especially with spruce and pine, from late summer to autumn. The cap is 3-8 cm in diameter, gray-brown to dark brown, often with a distinctive umbo, and the gills are white to pale yellow. It has a strong, earthy odor and taste. Local records show it to be relatively common in the region's forests, often fruiting in association with mosses and other fungi.

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

Charbonnier mushrooms (<B>Tricholoma portentosum</B>) between Orekhovo and Lembolovo, north from Saint Petersburg. Russia, <A HREF="../date-en/2016-09-28.htm">September 28, 2016</A>
LinkCharbonnier mushrooms (Tricholoma portentosum) between Orekhovo and Lembolovo, north from Saint Petersburg. Russia, September 28, 2016
Location on mapsUnnamed Road, Leningradskaya oblast', Russia
Charbonnier mushrooms (<B>Tricholoma portentosum</B>) near Orekhovo, north from Saint Petersburg, Russia, <A HREF="../date-en/2016-10-22.htm">October 22, 2016</A>
LinkCharbonnier mushrooms (Tricholoma portentosum) near Orekhovo, north from Saint Petersburg, Russia, October 22, 2016
Location on mapsUnnamed Road, Vaskelovo, Leningradskaya oblast', Russia, 188731
Old Charbonnier mushroom (<B>Tricholoma portentosum</B>) in Dibuny, north-west from Saint Petersburg, Russia, <A HREF="../date-en/2016-10-23.htm">October 23, 2016</A>
LinkOld Charbonnier mushroom (Tricholoma portentosum) in Dibuny, north-west from Saint Petersburg, Russia, October 23, 2016
Location on mapsUnnamed Road, Pesochnyy, g. Sankt-Peterburg, Russia
Coalman mushrooms (<B>Tricholoma portentosum</B>) near Dibuny, north-west from Saint Petersburg. Russia, <A HREF="../date-en/2017-09-28.htm">September 28, 2017</A>
LinkCoalman mushrooms (Tricholoma portentosum) near Dibuny, north-west from Saint Petersburg. Russia, September 28, 2017
Location on mapsZapadniy Skorostnoy Diameter, Sankt-Peterburg, Russia, 197758
Coalman mushrooms (<B>Tricholoma portentosum</B>) in a pine forest near Dibuny, north-west from Saint Petersburg. Russia, <A HREF="../date-en/2017-09-28.htm">September 28, 2017</A>
LinkCoalman mushrooms (Tricholoma portentosum) in a pine forest near Dibuny, north-west from Saint Petersburg. Russia, September 28, 2017
Location on mapsZapadniy Skorostnoy Diameter, Sankt-Peterburg, Russia, 197758
Coalman mushrooms (<B>Tricholoma portentosum</B>) near Dibuny, north-west from Saint Petersburg. Russia, <A HREF="../date-en/2017-09-28.htm">September 28, 2017</A>
LinkCoalman mushrooms (Tricholoma portentosum) near Dibuny, north-west from Saint Petersburg. Russia, September 28, 2017
Location on mapsUnnamed Road, Pesochny, Sankt-Peterburg, Russia
Coalman mushrooms (<B>Tricholoma portentosum</B>) in a pine forest near Dibuny, north-west from Saint Petersburg. Russia, <A HREF="../date-en/2017-09-28.htm">September 28, 2017</A>
LinkCoalman mushrooms (Tricholoma portentosum) in a pine forest near Dibuny, north-west from Saint Petersburg. Russia, September 28, 2017
Location on mapsUnnamed Road, Pesochny, Sankt-Peterburg, Russia
Group of coalman mushrooms (<B>Tricholoma portentosum</B>) near Dibuny, north-west from Saint Petersburg. Russia, <A HREF="../date-en/2017-09-28.htm">September 28, 2017</A>
LinkGroup of coalman mushrooms (Tricholoma portentosum) near Dibuny, north-west from Saint Petersburg. Russia, September 28, 2017
Location on mapsUnnamed Road, Pesochny, Sankt-Peterburg, Russia

AI-generated summary of observations

Observations of Tricholoma portentosum in Leningrad Oblast and north-western Russia reveal that the fungus grows in various locations, including areas between Orekhovo and Lembolovo, near Orekhovo, and in Dibuny. The mushrooms were found on different dates, specifically September 28, 2016, October 22, 2016, October 23, 2016, and September 28, 2017. They tend to thrive in pine forests, with multiple sightings reported in such environments near Dibuny. The observations also include notes on the age of the mushrooms, with one old specimen found on October 23, 2016. Additionally, groups of coalman mushrooms were observed growing together, as seen on September 28, 2017, near Dibuny. These findings suggest that Tricholoma portentosum is relatively common in this region and can be found in similar habitats during the fall season. The species appears to have a consistent presence in the area.

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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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