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Fungi: Basidiomycota: Agaricomycetes: Russulales: Russulaceae: Russula decolorans (Fr.) Fr., 1838

Russula decolorans – Copper brittlegill

Synonyms: Agaricus decolorans, Myxacium decolorans, Russula constans, Russula rubriceps.

Common name: copper brittlegill.

Russian names: Syroezhka sereiushchaya, Syroezhka vytsvetaiushchaya.

Extract from Wikipedia article: Russula decolorans is an edible Russula mushroom, found in groups in coniferous forests.

AI-generated description

Russula decolorans is a species of mushroom that grows in association with trees, particularly conifers. In St. Petersburg and Leningrad Oblast, it has been found in pine and spruce forests, typically fruiting from July to September. The fungus has a wide distribution in north-western Russia, where it can be found in similar habitats, including mossy pine forests and sphagnum bogs. Its cap is 4-8 cm in diameter, yellowish-brown to reddish-brown with greenish or bluish tints, and its stem is white to cream-colored. The flesh is white and has a mild taste.

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

Greying brittlegill mushroom (<B>Russula decolorans</B>) between Orekhovo and Lembolovo, 30 miles north from Saint Petersburg. Russia, <A HREF="../date-en/2004-08-19.htm">August 19, 2004</A>
LinkGreying brittlegill mushroom (Russula decolorans) between Orekhovo and Lembolovo, 30 miles north from Saint Petersburg. Russia, August 19, 2004
Greying brittlegill mushroom (<B>Russula decolorans</B>) together with Russula covered by fungus Hypomyces viridis in Dibuny, north-west from Saint Petersburg, Russia, <A HREF="../date-en/2016-08-09.htm">August 9, 2016</A>
LinkGreying brittlegill mushroom (Russula decolorans) together with Russula covered by fungus Hypomyces viridis in Dibuny, north-west from Saint Petersburg, Russia, August 9, 2016
Location on mapsUnnamed Road, g. Sankt-Peterburg, Russia, 197758
Greying brittlegill mushroom (<B>Russula decolorans</B>) near Orekhovo, north from Saint Petersburg. Russia, <A HREF="../date-en/2016-08-13.htm">August 13, 2016</A>
LinkGreying brittlegill mushroom (Russula decolorans) near Orekhovo, north from Saint Petersburg. Russia, August 13, 2016
Location on mapsUnnamed Road, Leningradskaya oblast', Russia
Copper brittlegill mushrooms (<B>Russula decolorans</B>(?)) in Gardens of Polytechnic Institute. Saint Petersburg, Russia, <A HREF="../date-en/2017-07-29.htm">July 29, 2017</A>
LinkCopper brittlegill mushrooms (Russula decolorans(?)) in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 29, 2017
Location on mapsPolitekhnicheskaya ul., 29к12, Sankt-Peterburg, Russia, 195251
Greying brittlegill mushrooms (<B>Russula decolorans</B>) in a spruce forest near Lembolovo, 40 miles north from Saint Petersburg. Russia, <A HREF="../date-en/2017-09-09.htm">September 9, 2017</A>
LinkGreying brittlegill mushrooms (Russula decolorans) in a spruce forest near Lembolovo, 40 miles north from Saint Petersburg. Russia, September 9, 2017
Location on mapsUnnamed Road, Leningradskaya oblast', Russia, 188695

AI-generated summary of observations

Observations of Russula decolorans were made in various locations in Leningrad Oblast and north-western Russia. The fungus was found between Orekhovo and Lembolovo, approximately 30 miles north of Saint Petersburg, on August 19, 2004. Similar sightings were recorded in Dibuny, near Orekhovo, and in a spruce forest near Lembolovo, with some specimens exhibiting infection by the fungus Hypomyces viridis. Additional observations were made in Gardens of Polytechnic Institute in Saint Petersburg, although the identification of these specimens as R. decolorans is uncertain. The sightings span multiple years, including 2004, 2016, and 2017, and occurred during the summer and early fall months. The fungus appears to be relatively common in the region, with multiple observations recorded in different locations over time. Habitats included forests and urban areas, such as gardens.

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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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