Saffron webcap mushrooms (Cortinarius croceus) near Orekhovo, 40 miles north from Saint Petersburg. Russia, September 9, 2016Synonyms: Agaricus cinnamomeus, Agaricus croceus, Agaricus subcorneus, Cortinarius cinnamomeobadius, Cortinarius cinnamomeolutescens, Cortinarius cinnamomeus, Cortinarius croceifolius, Dermocybe cinnamomeobadia, Dermocybe crocea, Flammula cinnamomea.
Common name: saffron webcap.
Russian names: Pautinnik shafranovyy, Pautinnik kashtanovo-korichnevyy.
Cortinarius croceus is a species of fungus that belongs to the family Cortinariaceae. It has a bright yellow to golden-yellow cap, 2-5 cm in diameter, and a stout stem. In St. Petersburg, Leningrad Oblast, and north-western Russia, Cortinarius croceus typically grows in coniferous and mixed forests, often associated with spruce and pine trees. It fruits from late summer to early autumn, forming mycorrhizal relationships with tree roots. The species is considered rare in the region, but can be found in undisturbed forests with rich soil and moderate humidity.
Saffron webcap mushrooms (Cortinarius croceus) near Orekhovo, 40 miles north from Saint Petersburg. Russia, September 9, 2016
Webcap mushrooms Cortinarius croceus(?) north from Lembolovo, 40 miles north from Saint Petersburg. Russia, September 9, 2017
Unnamed Road, Leningradskaya oblast', Russia, 188695
Webcap mushrooms Cortinarius croceus(?) in a sandy ditch north from Lembolovo, 40 miles north from Saint Petersburg. Russia, September 9, 2017Unnamed Road, Leningradskaya oblast', Russia, 188695
Saffron webcap mushrooms (Cortinarius croceus) in a sphagnum swamp near a lake in Petiayarvi, north from Saint Petersburg. Russia, August 3, 2024Экомаршрут "Гряда Вярямянселькя", Петровское сельское поселение, Приозерский район, Ленинградская область, Северо-Западный федеральный округ, 188732, Россия
Spores (in KOH) of saffron webcap mushrooms (Cortinarius croceus) (spore print rusty brown, turns black in KOH) in sphagnum collected earlier 8/3/2024 in Petiayarvi, north from Saint Petersburg, Russia, August 23, 2024Observations of Cortinarius croceus in Leningrad Oblast and north-western Russia reveal its presence in various habitats. The fungus was found near Orekhovo, 40 miles north of Saint Petersburg, on September 9, 2016. Similar sightings were recorded north of Lembolovo, also 40 miles north of Saint Petersburg, on September 9, 2017, including in a sandy ditch. Additionally, the species was spotted in a sphagnum swamp near a lake in Petiayarvi, north of Saint Petersburg, on August 3, 2024. Spore analysis from the latter location showed rusty brown spores that turned black in KOH, confirming the identity of Cortinarius croceus. These observations suggest that the species can thrive in diverse environments, including sandy and sphagnum-rich areas, in the region. The consistent presence of Cortinarius croceus in these areas over several years indicates its established presence in Leningrad Oblast and north-western Russia.
Russian web-forums Planeta Gribov, V Kontakte, and Griby Sredney Polosy for learning names of local mushrooms.
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