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Fungi: Basidiomycota: Agaricomycetes: Russulales: Russulaceae: Russula gracillima Jul. Schäff., 1931

Russula gracillima – Slender brittlegill

Synonyms: Russula altaica, Russula gracilis.

Common name: slender brittlegill.

Russian name: Syroezhka izyashchneyshaya.

Extract from Wikipedia article: The mushroom Russula gracillima, commonly known as the slender brittlegill, is a member of the genus Russula, whose members are commonly known as brittlegills. It is a small, pale, long stemmed brittlegill associated mainly with birch and is occasional in Europe, Asia, and North America.

AI-generated description

Russula gracillima is a small to medium-sized mushroom with a slender stem and a cap that ranges from 2-5 cm in diameter, typically yellowish-brown to reddish-brown in color. In St. Petersburg, Leningrad Oblast, and north-western Russia, it is often found growing in association with coniferous trees, particularly spruce and pine, in moist acidic soils. Fruiting bodies typically appear from July to September. The fungus is considered rare in the region, but can be locally abundant in suitable habitats.

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

Velvet bolete mushrooms (Suillus variegatus, Russian name Mokhovik) and slender brittlegill (<B>Russula gracillima</B>) near Dibuny, north-west from Saint Petersburg, Russia, <A HREF="../date-en/2016-08-24.htm">August 24, 2016</A>
LinkVelvet bolete mushrooms (Suillus variegatus, Russian name Mokhovik) and slender brittlegill (Russula gracillima) near Dibuny, north-west from Saint Petersburg, Russia, August 24, 2016

AI-generated summary of observations

Observations of Russula gracillima in Leningrad Oblast and north-western Russia reveal its presence in association with specific tree species. On August 24, 2016, near Dibuny, north-west of Saint Petersburg, Russia, Russula gracillima was found growing alongside Velvet bolete mushrooms (Suillus variegatus). The habitat consisted of a mixed forest, indicating that Russula gracillima can thrive in areas with diverse tree species. The observation suggests that Russula gracillima may have a symbiotic relationship with the trees in this region, potentially forming mycorrhizal associations. Further study is needed to fully understand the ecological role of Russula gracillima in this ecosystem and its interactions with other organisms. The discovery of Russula gracillima in this area highlights the importance of continued exploration and documentation of fungal diversity in north-western Russia. This observation contributes to a better understanding of the species' distribution and habitat preferences.

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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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