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Fungi: Basidiomycota: Agaricomycetes: Russulales: Russulaceae: Russula claroflava Grove, 1888

Russula claroflava – Yellow russula

Synonyms: Russula constans, Russula decolorans, Russula flava, Russula ochroleuca.

Common names: yellow russula, yellow swamp brittlegill.

Russian names: Syroezhka zhioltaya, Syroezhka svetlo-zhioltaya.

Extract from Wikipedia article: Russula claroflava, commonly known as the yellow russula, yellow swamp russula or yellow swamp brittlegill, is a basidiomycete mushroom of the genus Russula. It is found in wet places under birch and aspen woodlands across Europe and North America. It has a yellow cap, white gills and stipe and bruises grey. It is mild-tasting and regarded as good to eat.

AI-generated description

Russula claroflava is a species of mushroom characterized by its bright yellow to orange-yellow cap, 3-7 cm in diameter, with a slightly wrinkled surface. The stem is white or pale yellow, 3-6 cm long and 0.8-1.5 cm wide. It has a mild taste and a pleasant odor. In St. Petersburg, Leningrad Oblast, and north-western Russia, Russula claroflava typically grows in coniferous forests, especially with spruce and pine, from July to September. The fungus is considered edible and can be found in various habitats, including mossy areas and near tree roots.

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

Yellow brittlegill mushrooms (<B>Russula claroflava</B>(?)) in Sosnovka Park. Saint Petersburg, Russia, <A HREF="../date-en/2024-07-30.htm">July 30, 2024</A>
LinkYellow brittlegill mushrooms (Russula claroflava(?)) in Sosnovka Park. Saint Petersburg, Russia, July 30, 2024
Location on mapsКруговая аллея, округ Сосновское, Санкт-Петербург, Северо-Западный федеральный округ, 194064, Россия
Yellow brittlegill mushrooms (<B>Russula claroflava</B>(?)) partially lit by ultraviolet light in Sosnovka Park. Saint Petersburg, Russia, <A HREF="../date-en/2024-07-30.htm">July 30, 2024</A>
LinkYellow brittlegill mushrooms (Russula claroflava(?)) partially lit by ultraviolet light in Sosnovka Park. Saint Petersburg, Russia, July 30, 2024
Location on mapsКруговая аллея, округ Сосновское, Санкт-Петербург, Северо-Западный федеральный округ, 194064, Россия

AI-generated summary of observations

Observations of Russula claroflava in Leningrad Oblast and north-western Russia reveal its presence in urban parks. In Sosnovka Park, Saint Petersburg, the fungus was found on July 30, 2024, with yellow brittlegill mushrooms identified as potential Russula claroflava. The mushrooms were observed in their natural state and also under ultraviolet light, which partially illuminated them. This suggests that the species may have fluorescent properties. The sightings in Sosnovka Park indicate that Russula claroflava can thrive in urban environments, possibly associating with tree species found in the park. Further study is needed to confirm the identity of the mushrooms and understand their ecological role in the region. The observations provide valuable insights into the distribution and characteristics of Russula claroflava 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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