Tiny ceramic parchment fungus (Xylobolus frustulatus mushrooms) on a log of an oak tree near Lisiy Nos, west from Saint Petersburg. Russia, February 18, 2017
Polyanskaya dor., g. Sankt-Peterburg, Russia, 197755Synonyms: Auricularia frustulata, Stereum frustulatum, Thelephora frustulata, Thelephora sinuans, Xerocarpus frustulatus.
Common name: ceramic parchment.
Russian names: Ksilobolus pantsirnyy, Ksilobolius pantsirnyy.
Extract from Wikipedia article: Xylobolus frustulatus, commonly known as the ceramic fungus or ceramic parchment, is an inedible species of crust fungus in the Stereaceae family. The fruit body forms small, hard, flat crust-like aggregations that resemble broken pieces of ceramic tile. These pieces are initially whitish before turning yellow-brown to gray-brown in age. The spore-bearing cells cover the upper surfaces of the fruit body. A saprobic species, it grows on well-decayed oak wood in Asia, northern Europe, and North America.
Xylobolus frustulatus is a species of fungus that belongs to the family Stereaceae. It is a wood-inhabiting fungus that grows on decaying logs and stumps, particularly on coniferous trees. In St. Petersburg, Leningrad Oblast, and north-western Russia, Xylobolus frustulatus has been found in various forests, including spruce and pine forests, where it plays a role in decomposing organic matter. The fungus produces resupinate to effused-reflexed fruiting bodies with a smooth to wrinkled hymenium and ellipsoid to cylindrical spores. It is considered a rare species in the region, but its distribution is likely underestimated due to limited sampling efforts.
Tiny ceramic parchment fungus (Xylobolus frustulatus mushrooms) on a log of an oak tree near Lisiy Nos, west from Saint Petersburg. Russia, February 18, 2017Polyanskaya dor., g. Sankt-Peterburg, Russia, 197755
Ceramic parchment mushrooms (Xylobolus frustulatus) on a rotten oak near Lisiy Nos, west from Saint Petersburg. Russia, February 18, 201732, Экотропа "У Лукоморья", Лисий Нос, Санкт-Петербург, Северо-Западный федеральный округ, 189645, Россия
Ceramic parchment fungus (Xylobolus frustulatus mushrooms) on a branch of a rotten oak near Lisiy Nos, south from Saint Petersburg. Russia, February 18, 2017Primorskoye sh., g. Sankt-Peterburg, Russia, 197755
Ceramic parchment fungus (Xylobolus frustulatus) on a rotten oak near Lisiy Nos, south from Saint Petersburg. Russia, February 18, 2017Primorskoye sh., g. Sankt-Peterburg, Russia, 197755
Texture of ceramic parchment mushrooms (Xylobolus frustulatus) on a rotten oak near Lisiy Nos, south from Saint Petersburg. Russia, February 18, 2017Primorskoye sh., g. Sankt-Peterburg, Russia, 197755
Ceramic parchment mushrooms (Xylobolus frustulatus) on a rotten oak in area of Blizhnie Dubki near Lisiy Nos, west from Saint Petersburg. Russia, April 7, 201732, Экотропа "У Лукоморья", Лисий Нос, Санкт-Петербург, Северо-Западный федеральный округ, 189645, Россия
Texture of ceramic parchment mushrooms (Xylobolus frustulatus) on a rotten oak in area of Blizhnie Dubki near Lisiy Nos, west from Saint Petersburg. Russia, April 7, 201732, Экотропа "У Лукоморья", Лисий Нос, Санкт-Петербург, Северо-Западный федеральный округ, 189645, Россия
Ceramic parchment mushrooms (Xylobolus frustulatus) on a rotten oak log in area of Blizhnie Dubki near Lisiy Nos, west from Saint Petersburg. Russia, April 7, 201732, Экотропа "У Лукоморья", Лисий Нос, Санкт-Петербург, Северо-Западный федеральный округ, 189645, Россия
Ceramic parchment mushrooms (Xylobolus frustulatus) on a rotten fallen oak in area of Blizhnie Dubki near Lisiy Nos, west from Saint Petersburg. Russia, April 7, 2017Экотропа "У Лукоморья", Лисий Нос, Санкт-Петербург, Северо-Западный федеральный округ, 189645, Россия
Ceramic parchment fungus (Xylobolus frustulatus) on a fallen oak near Lisiy Nos. West from Saint Petersburg, Russia, August 23, 2017Polyanskaya Doroga, Sankt-Peterburg, Russia, 197755
A fallen oak with ceramic parchment fungus (Xylobolus frustulatus) near Lisiy Nos. West from Saint Petersburg, Russia, August 23, 2017Polyanskaya Doroga, Sankt-Peterburg, Russia, 197755
Ceramic parchment fungus (Xylobolus frustulatus) on a fallen oak in Blizhniye Dubki Park in Lisiy Nos, west from Saint Petersburg. Russia, May 3, 2021St Petersburg, Russia, 197755
Ceramic parchment fungus (Xylobolus frustulatus) on a fallen oak in Tarkhovka Park, west from Saint Petersburg. Russia, August 2, 2024улица Инструментальщиков, Разлив, Сестрорецк, Санкт-Петербург, Северо-Западный федеральный округ, 197706, Россия
Close-up of ceramic parchment fungus (Xylobolus frustulatus) on a fallen oak in Tarkhovka Park, west from Saint Petersburg. Russia, August 2, 2024улица Инструментальщиков, Разлив, Сестрорецк, Санкт-Петербург, Северо-Западный федеральный округ, 197706, РоссияObservations of Xylobolus frustulatus in Leningrad Oblast and north-western Russia show that the fungus grows on rotten oak trees and logs. Multiple sightings were recorded near Lisiy Nos, west of Saint Petersburg, between February 2017 and May 2021. The fungus was found on branches, trunks, and fallen oaks, often in areas such as Blizhnie Dubki and Tarkhovka Park. Observations were made during different times of the year, including winter (February), spring (April and May), summer (August), indicating that the fungus is present throughout the year. The texture of the fungus was also documented, showing its characteristic ceramic-like appearance. Overall, Xylobolus frustulatus appears to be a common species in the region, thriving on decaying oak wood.
Russian web-forums Planeta Gribov, V Kontakte, and Griby Sredney Polosy for learning names of local mushrooms.
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