Bolete mushrooms Hortiboletus bubalinus with yellow angular pores on a beach in West Kotlin Nature Reserve in Kronstadt. Saint Petersburg, Russia, September 8, 2017
Kronshtadtskoye Shosse, 47, Kronshtadt, Sankt-Peterburg, Russia, 197761Synonyms: Boletus bubalinus, Xerocomellus bubalinus, Xerocomus bubalinus.
Russian name: Mokhovik buyvolinyy.
Extract from Wikipedia article: Hortiboletus bubalinus is a species of bolete fungus in the Boletaceae family. Originally described in 1991 as a species of Boletus, the fungus was transferred to Xerocomus in 1993. It was transferred to Hortiboletus by Bálint Dima in 2015.
Hortiboletus bubalinus is a species of bolete fungus that grows in association with deciduous trees, particularly oak and beech. In St. Petersburg, Leningrad Oblast, and north-western Russia, it typically fruits from July to September in rich soils, often in woodland edges, parks, and gardens. The cap is 4-8 cm in diameter, reddish-brown to brown, and sometimes wrinkled or pitted, while the pores are yellow, becoming greenish-yellow with age. The stalk is similar in color to the cap, often with a reddish or pinkish tint at the base. It is considered a rare species in the region, but can be locally common in suitable habitats.
Bolete mushrooms Hortiboletus bubalinus with yellow angular pores on a beach in West Kotlin Nature Reserve in Kronstadt. Saint Petersburg, Russia, September 8, 2017Kronshtadtskoye Shosse, 47, Kronshtadt, Sankt-Peterburg, Russia, 197761
Bolete mushrooms Hortiboletus bubalinus staining pink and blue in cross section on a beach in West Kotlin Nature Reserve in Kronstadt. Saint Petersburg, Russia, September 8, 2017Kronshtadtskoye Shosse, 47, Kronshtadt, Sankt-Peterburg, Russia, 197761
Uneven brown and lighter towards the edge caps of bolete mushrooms Hortiboletus bubalinus on a beach in West Kotlin Nature Reserve in Kronstadt. Saint Petersburg, Russia, September 8, 2017Kronshtadtskoye Shosse, 47, Kronshtadt, Sankt-Peterburg, Russia, 197761
Dissected bolete mushroom Hortiboletus bubalinus staining pink and blue near a beach together with bonnet (Mycena) mushrooms taken from a mossy tree in West Kotlin Nature Reserve in Kronstadt. Saint Petersburg, Russia, September 2, 2018
Bolete mushrooms Hortiboletus bubalinus on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 23, 2024Кафедра Теплотехники, Политехническая 29 Корпус -, Saint Petersburg, 194064, Russia
Side view of bolete mushrooms Hortiboletus bubalinus on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 23, 2024Russia, Saint Petersburg, Академическое, 194064, Политехническая Улица 29о
Bolete mushroom Hortiboletus bubalinus with a parasitic fungus Hypomyces chrysospermus on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 23, 2024
Cross section of a bolete mushroom Hortiboletus bubalinus with a parasitic fungus Hypomyces chrysospermus on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 23, 2024
Bolete mushrooms Hortiboletus bubalinus suffered from a parasitic fungus Hypomyces chrysospermus on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 23, 2024
Cross section of bolete mushrooms Hortiboletus bubalinus on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 23, 2024
Bolete mushrooms Hortiboletus bubalinus covered by mold-like parasitic fungus Hypomyces chrysospermus on a lawn in Gardens of Polytechnic Institute. Saint Petersburg, Russia, July 23, 2024Hortiboletus bubalinus was observed in Leningrad Oblast and north-western Russia, specifically in the West Kotlin Nature Reserve and Gardens of Polytechnic Institute. The fungus was found to have yellow angular pores and uneven brown caps that are lighter towards the edge. When cut, the mushroom stained pink and blue. It was also observed growing on beaches and lawns, often in association with other mushrooms like Mycena. In some cases, the fungus was infected by a parasitic fungus, Hypomyces chrysospermus, which caused mold-like growth and discoloration. The infected mushrooms were found to be covered in a white or yellowish mold, and their cross-sections showed significant damage from the parasite. Observations were made on multiple dates between 2017 and 2024, providing insight into the fungus's habits and interactions with its environment.
Russian web-forums Planeta Gribov, V Kontakte, and Griby Sredney Polosy for learning names of local mushrooms.
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