Synonyms: Agaricus grossulus, Agaricus umbellifer, Camarophyllus grossulus, Cuphophyllus grossulus, Gerronema grossulum, Hygrocybe grossula, Hygrophorus wynneae, Omphalia abiegna, Omphalia bibula, Omphalia umbellifera, Omphalia wynneae, Omphalina abiegna, Omphalina bibula, Omphalina grossula, Omphalina umbellifera, Omphalina wynneae.
Common name: green navel.
Chrysomphalina grossula is a species of fungus that grows on mosses and other non-vascular plants. In St. Petersburg and Leningrad Oblast, it has been found in coniferous forests, particularly on Sphagnum mosses. In north-western Russia, it is typically encountered in humid, acidic environments with abundant moss cover, often fruiting from late summer to early autumn. The fungus produces small, orange-yellow cups with a hairy exterior and smooth interior, containing yellowish spores. It is considered a rare species in the region, but can be locally common in suitable habitats.
Observations of the fungus Chrysomphalina grossula were made in a spruce forest in Tarkhovka Park near Sestroretsk, west of Saint Petersburg, Leningrad Oblast, on May 13, 2019. The mushrooms were found growing in the forest, with photographs taken to document their appearance. The underside of the mushrooms was also observed and photographed, showing their gills. A close-up view of the mushrooms revealed their detailed structure. These observations provide insight into the morphology and growth habits of Chrysomphalina grossula in north-western Russia. The presence of this fungus in the region suggests a suitable habitat for its growth, with the spruce forest providing the necessary conditions for its development. Further study could help to confirm the identification of the species and understand its ecological role in the area.
Russian web-forums Planeta Gribov, V Kontakte, and Griby Sredney Polosy for learning names of local mushrooms.
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