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Fungi: Basidiomycota: Agaricomycetes: Agaricales: Mycenaceae: Xeromphalina kauffmanii A. H. Sm., 1953

Xeromphalina kauffmanii

Russian name: Kseromfalina Kaufmana.

Extract from Wikipedia article: Xeromphalina kauffmanii is a species of agaric fungus in the family Mycenaceae. Found in North America, Costa Rica, and Japan, it was described as new to science in 1953. The type collection was made in Chelsea, Michigan, in June 1940. The specific epithet kauffmanii honors American mycologist Calvin Henry Kauffman.

AI-generated description

Xeromphalina kauffmanii is a small, orange-brown to reddish-brown fungus that grows in clusters on coniferous logs and stumps. In St. Petersburg, Leningrad Oblast, and north-western Russia, it typically fruits from July to October, preferring moist, shaded areas with abundant woody debris. The cap is 5-15 mm in diameter, convex to flat, and often wrinkled or veined. The stem is slender, 1-3 cm long, and the same color as the cap. It is a relatively rare species in the region, but can be found in coniferous forests, particularly those dominated by spruce and fir.

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

Cross-veined troop mushrooms <B>Xeromphalina kauffmanii</B> in moss on an old rotted stump of a large tree on a slope without forest on Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, <A HREF="../date-en/2021-05-09.htm">May 9, 2021</A>
LinkCross-veined troop mushrooms Xeromphalina kauffmanii in moss on an old rotted stump of a large tree on a slope without forest on Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
Location on mapsUlitsa Orekhovaya, 13, Кавелахта, Ленинградская, Russia, 198325
Cross-veined troop mushrooms <B>Xeromphalina kauffmanii</B> on an old mossy stump of a large tree on a slope without forest on Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, <A HREF="../date-en/2021-05-09.htm">May 9, 2021</A>
LinkCross-veined troop mushrooms Xeromphalina kauffmanii on an old mossy stump of a large tree on a slope without forest on Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
Location on mapsUlitsa Orekhovaya, 13, Кавелахта, Ленинградская, Russia, 198325
Small troop mushrooms <B>Xeromphalina kauffmanii</B> on an old mossy stump of a large tree on a slope without forest on Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, <A HREF="../date-en/2021-05-09.htm">May 9, 2021</A>
LinkSmall troop mushrooms Xeromphalina kauffmanii on an old mossy stump of a large tree on a slope without forest on Orekhovaya Gora Hill in Duderhof Heights, south from Saint Petersburg. Russia, May 9, 2021
Location on mapsUlitsa Orekhovaya, 13, Кавелахта, Ленинградская, Russia, 198325

AI-generated summary of observations

Observations of Xeromphalina kauffmanii in Leningrad Oblast and north-western Russia reveal that the fungus grows in specific environments. On Orekhovaya Gora Hill in Duderhof Heights, south of Saint Petersburg, it was found on old, rotted stumps of large trees covered in moss. The fungus formed small to medium-sized troops on these stumps, which were located on slopes without forest cover. The observations were made on May 9, 2021, and suggest that Xeromphalina kauffmanii thrives in areas with minimal tree cover and abundant moss growth. The fungus appears to prefer decaying wood as a substrate, and the presence of moss may indicate a preference for humid environments. These findings provide insight into the habitat preferences of Xeromphalina kauffmanii in north-western Russia. The species seems to be well-adapted to growing on decaying wood in open areas with moss cover.

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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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