Synonyms: Helotium umbilicatum, Hymenoscyphus umbilicatus, Pachydisca umbilicata.
Russian name: Faekhelotium sherokhovatenkiy.
Phaeohelotium umbilicatum is a species of fungus in the family Helotiaceae. It is characterized by small to medium-sized apothecia with umbilicate to cup-shaped fruiting bodies, typically 0.5-2 cm in diameter, and white to cream-colored exterior with a smooth to wrinkled surface. In St. Petersburg, Leningrad Oblast, and north-western Russia, Phaeohelotium umbilicatum has been found growing on mosses, lichens, and decaying plant material in coniferous and mixed forests, often associated with spruce, fir, and birch trees. The fungus typically fruits from July to October, with peak abundance in August and September.
Observations of Phaeohelotium umbilicatum in Leningrad Oblast and north-western Russia reveal the fungus grows on stumps, specifically on bark. On August 23, 2017, small mushrooms were found on a stump near Lisiy Nos, west of Saint Petersburg. The fungi were observed growing on the bark of the stump, with multiple small mushrooms present. A close-up examination showed the detailed characteristics of the mushrooms, confirming their identification as Phaeohelotium umbilicatum. The habitat and growth pattern suggest the fungus thrives in this region, potentially decomposing organic matter on tree stumps. Further observations may reveal more about its distribution and ecological role in north-western Russia. The species appears to be adapted to this environment, with the stump providing a suitable substrate for growth.
Russian web-forums Planeta Gribov, V Kontakte, and Griby Sredney Polosy for learning names of local mushrooms.
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