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Fungi: Basidiomycota: Agaricomycetes: Boletales: Suillaceae: Suillus granulatus (L.) Roussel, 1796

Suillus granulatus – Weeping bolete

Synonyms: Agaricus granulatus, Boletus boudieri, Boletus campanulatus, Boletus circinans, Boletus flavorufus, Boletus granulatus, Boletus heterosporus, Boletus lactifluus, Boletus longisporus, Boletus meridionalis, Boletus pictilis, Boletus rufopunctatus, Boletus violaceopunctatus, Ixocomus granulatus, Ixocomus pictilis, Leccinum lactifluum, Rostkovites boudieri, Rostkovites granulatus, Suillus lactifluus, Suillus roseobasis, Viscipellis boudieri, Viscipellis granulata.

Common name: weeping bolete.

Russian names: Maslionok zernistyy, Maslionok letniy, Maslionok ranniy.

Extract from Wikipedia article: Suillus granulatus is a pored mushroom of the genus Suillus in the family Suillaceae. It is similar to the related S. luteus, but can be distinguished by its ringless stalk. Like S. luteus, it is an edible mushroom that often grows in a symbiosis (mycorrhiza) with pine. It has been commonly known as the weeping bolete, or the granulated bolete.

AI-generated description

Suillus granulatus is a species of fungus that belongs to the family Suillaceae. It is characterized by its medium to large size, with a cap diameter of 4-10 cm, and a stout stem. The cap is typically brown to yellow-brown, often with a sticky or slimy surface, and the pores are yellow to brownish-yellow. In St. Petersburg, Leningrad Oblast, and north-western Russia, Suillus granulatus is commonly found in coniferous forests, particularly under pine trees, from July to October. It forms mycorrhizal associations with pine roots and can be abundant in areas with acidic soils and high levels of rainfall. The fungus is edible and considered a good food source, but its distribution and abundance may vary depending on environmental conditions.

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

Weeping Bolete mushrooms (<B>Suillus granulatus</B>, Russian name Maslionok) in Toksovo, suburb of Saint Petersburg. Russia, <A HREF="../date-en/2016-07-19.htm">July 19, 2016</A>
LinkWeeping Bolete mushrooms (Suillus granulatus, Russian name Maslionok) in Toksovo, suburb of Saint Petersburg. Russia, July 19, 2016
Location on mapsGlavnaya, 107, Syargi, Leningradskaya oblast', Russia, 188664
Weeping Bolete mushrooms (<B>Suillus granulatus</B>) on roadside in Toksovo, suburb of Saint Petersburg. Russia, <A HREF="../date-en/2016-07-19.htm">July 19, 2016</A>
LinkWeeping Bolete mushrooms (Suillus granulatus) on roadside in Toksovo, suburb of Saint Petersburg. Russia, July 19, 2016
Location on mapsGlavnaya, 107, Syargi, Leningradskaya oblast', Russia, 188664
Weeping Bolete mushrooms (<B>Suillus granulatus</B>, Russian name Maslionok) in Tarkhovka near Sestroretsk. West from Saint Petersburg, Russia, <A HREF="../date-en/2018-08-18.htm">August 18, 2018</A>
LinkWeeping Bolete mushrooms (Suillus granulatus, Russian name Maslionok) in Tarkhovka near Sestroretsk. West from Saint Petersburg, Russia, August 18, 2018
Location on mapsFedotovskaya Dorozhka, 29, Tarkhovka, Sankt-Peterburg, Russia, 197701
Weeping bolete mushrooms (<B>Suillus granulatus</B>) between Oselki and Toksovo, north from Saint Petersburg. Russia, <A HREF="../date-en/2024-08-13.htm">August 13, 2024</A>
LinkWeeping bolete mushrooms (Suillus granulatus) between Oselki and Toksovo, north from Saint Petersburg. Russia, August 13, 2024
Location on mapsТоксовское городское поселение, Всеволожский район, Ленинградская область, Северо-Западный федеральный округ, Россия

AI-generated summary of observations

Observations of Suillus granulatus in Leningrad Oblast and north-western Russia show that the fungus grows in various locations, including suburbs of Saint Petersburg such as Toksovo and areas near Sestroretsk like Tarkhovka. The mushrooms have been spotted on roadsides and in natural environments between Oselki and Toksovo. The sightings occurred during summer months, specifically July and August, across different years: 2016, 2018, and 2024. The fungus appears to thrive in these regions, with multiple observations of Weeping Bolete mushrooms in the same general area over time, indicating a possible consistent habitat for Suillus granulatus in north-western Russia. The Russian name for the species, Maslionok, is also commonly used to refer to the fungus in these observations.

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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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