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Fungi: Basidiomycota: Agaricomycetes: Agaricales: Tricholomataceae: Tricholoma sulphureum (Bull.) P. Kumm., 1871

Tricholoma sulphureum – Sulphur knight

Synonyms: Agaricus sulphureus, Gymnopus sulphureus, Gyrophila sulphurea, Tricholoma hemisulphureum.

Common name: sulphur knight.

Russian names: Ryadovka serno-zhioltaya, Ryadovka sernaya.

Extract from Wikipedia article: Tricholoma sulphureum, also known as sulphur knight or gas agaric, is an inedible or mildly poisonous mushroom found in woodlands in Europe. It has a distinctive bright yellow colour and an unusual smell likened to coal gas. It occurs in deciduous woodlands in Europe from spring to autumn.

AI-generated description

Tricholoma sulphureum is a medium-sized agaric fungus with a sulfurous-yellow cap and gills, and a stout stem. In St. Petersburg and Leningrad Oblast, it typically grows in coniferous and mixed forests, often associated with pine and spruce trees. It fruits from late summer to early autumn, forming scattered groups or rings on the ground. In north-western Russia, T. sulphureum is widely distributed and can be found in various forest types, including those dominated by birch, aspen, and alder. The fungus is considered edible, but not highly prized due to its strong sulfur-like odor and taste.

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

Sulphur knight mushrooms (<B>Tricholoma sulphureum</B>) near Lisiy Nos, south from Saint Petersburg. Russia, <A HREF="../date-en/2016-09-03.htm">September 3, 2016</A>
LinkSulphur knight mushrooms (Tricholoma sulphureum) near Lisiy Nos, south from Saint Petersburg. Russia, September 3, 2016
Location on mapsPrimorskoye sh., g. Sankt-Peterburg, Russia, 197755
Sulphur knight mushrooms (<B>Tricholoma sulphureum</B>) between Morskaya and Lisiy Nos, south from Saint Petersburg. Russia, <A HREF="../date-en/2016-09-03.htm">September 3, 2016</A>
LinkSulphur knight mushrooms (Tricholoma sulphureum) between Morskaya and Lisiy Nos, south from Saint Petersburg. Russia, September 3, 2016
Location on mapsPrimorskoye sh., g. Sankt-Peterburg, Russia, 197755
Sulphur knight mushrooms (<B>Tricholoma sulphureum</B>) near Dibuny, west from Saint Petersburg. Russia, <A HREF="../date-en/2016-09-07.htm">September 7, 2016</A>
LinkSulphur knight mushrooms (Tricholoma sulphureum) near Dibuny, west from Saint Petersburg. Russia, September 7, 2016
Location on mapsZapadniy Skorostnoy Diameter, g. Sankt-Peterburg, Russia, 197758
Sulphur knight mushrooms (<B>Tricholoma sulphureum</B>) near Lisiy Nos, west from Saint Petersburg. Russia, <A HREF="../date-en/2016-09-12.htm">September 12, 2016</A>
LinkSulphur knight mushrooms (Tricholoma sulphureum) near Lisiy Nos, west from Saint Petersburg. Russia, September 12, 2016
Location on mapsPrimorskoye sh., g. Sankt-Peterburg, Russia, 197755

AI-generated summary of observations

Observations of Tricholoma sulphureum in Leningrad Oblast and north-western Russia reveal that the fungus grows in various locations near Saint Petersburg. On September 3, 2016, Sulphur knight mushrooms were found near Lisiy Nos and between Morskaya and Lisiy Nos. Further sightings occurred on September 7, 2016, near Dibuny, west of Saint Petersburg, and again on September 12, 2016, near Lisiy Nos. The fungus appears to thrive in the region, with multiple observations recorded within a short period. The locations suggest that Tricholoma sulphureum can be found in wooded areas and possibly other habitats in the Leningrad Oblast and north-western Russia. The consistent sightings in September indicate that this may be a peak time for the fungus's growth in the region.

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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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