Synonyms: Aleuria omphalodes, Humaria omphalodes, Peziza confluens, Peziza omphalodes, Peziza rosella, Pyronema confluens, Tapesia omphalodes.
Russian name: Pironema pupkovidnaya.
Pyronema omphalodes is a species of fungus that belongs to the family Pyronemataceae. It is a small, disc-shaped ascocarp with a yellowish to reddish-brown color, typically 0.5-2 mm in diameter. In St. Petersburg and Leningrad Oblast, Pyronema omphalodes has been found growing on burnt soil, ash, and charcoal, often in areas with rich nutrient deposits. In north-western Russia, it is commonly associated with fire-disturbed habitats, including forest fires and anthropogenic burns. The fungus fruits in spring and summer, typically from May to July, and can be abundant in certain areas, particularly those with high levels of soil disturbance.
Orange Ascomycete mushrooms Pyronema omphalodes on charcoal of a bonfire site in Zakhodskoe, 50 miles north from Saint Petersburg. Russia, July 22, 2024
Старый погреб, проспект графа Толстого, Полянское сельское поселение, Выборгский район, Ленинградская область, Северо-Западный федеральный округ, Россия
Close-up of orange Ascomycete mushrooms Pyronema omphalodes on a bonfire site in Zakhodskoe, 50 miles north from Saint Petersburg. Russia, July 22, 2024Старый погреб, проспект графа Толстого, Полянское сельское поселение, Выборгский район, Ленинградская область, Северо-Западный федеральный округ, Россия
Tiny Ascomycete mushrooms Pyronema omphalodes on charred wood on a bonfire site in Zakhodskoe, 50 miles north from Saint Petersburg. Russia, July 22, 2024Старый погреб, проспект графа Толстого, Полянское сельское поселение, Выборгский район, Ленинградская область, Северо-Западный федеральный округ, РоссияObservations of Pyronema omphalodes in Leningrad Oblast and north-western Russia revealed the fungus growing on charcoal and charred wood at a bonfire site in Zakhodskoe, approximately 50 miles north of Saint Petersburg. The orange Ascomycete mushrooms were found in various forms, including large clusters and tiny individual growths. Close-up observations showed the distinctive orange coloration of the mushrooms, while wider views revealed their prevalence on the charred remains of the bonfire. The fungus was spotted on July 22, 2024, indicating a potential summer or warm-weather growth pattern in the region. Overall, Pyronema omphalodes appears to thrive in areas with burned wood and charcoal, suggesting a preference for disturbed or fire-affected environments.
Russian web-forums Planeta Gribov, V Kontakte, and Griby Sredney Polosy for learning names of local mushrooms.
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