Crust mushroom Xylodon raduloides (Hyphodontia radula)(?) near Dibuny, north-west from Saint Petersburg. Russia, April 18, 2017Synonyms: Boletus radula, Chaetoporus radula, Hyphodontia radula, Kneiffiella radula, Physisporus radula, Polyporus radula, Poria radula, Schizopora radula.
Russian name: Skhizopora skrebkovidnaya.
Xylodon raduloides is a species of tooth fungus that grows on dead wood, characterized by its effused-reflexed to pileate basidiocarps with a raduloid (rasp-like) hymenial surface. In St. Petersburg and Leningrad Oblast, it has been found on various substrates including coniferous and deciduous trees, particularly on birch and aspen. In north-western Russia, the fungus is widely distributed in temperate forests, often occurring on fallen logs, stumps, and dead branches, typically fruiting from summer to autumn.
Crust mushroom Xylodon raduloides (Hyphodontia radula)(?) near Dibuny, north-west from Saint Petersburg. Russia, April 18, 2017
Close up of crust mushroom Xylodon raduloides (Hyphodontia radula)(?) near Dibuny, north-west from Saint Petersburg. Russia, April 18, 2017
Crust mushroom Xylodon raduloides (Hyphodontia radula)(?) on a dry branch near Dibuny, north-west from Saint Petersburg. Russia, April 18, 2017
Prostrate crust-like fungus Xylodon raduloides (Hyphodontia radula)(?) near Dibuny, north-west from Saint Petersburg. Russia, April 18, 2017
Reticulating pattern of resupinate polypore fungus Xylodon raduloides (Hyphodontia radula) on a log on an old railroad path near Kuzmolovo, north from Saint Petersburg. Russia, August 10, 2017
Resupinate polypore fungus Xylodon raduloides (Hyphodontia radula) on a log on an old railroad path near Kuzmolovo, north from Saint Petersburg. Russia, August 10, 2017
Resupinate polypore fungus Xylodon raduloides (Hyphodontia radula) with spiny and warty pores on a log on an old railroad path near Kuzmolovo, north from Saint Petersburg. Russia, August 10, 2017In Leningrad Oblast and north-western Russia, observations of Xylodon raduloides were made in various locations. The fungus was found growing on a dry branch near Dibuny, northwest of Saint Petersburg, on April 18, 2017. It displayed a crust-like appearance with a reticulating pattern. Later, on August 10, 2017, it was observed on logs along an old railroad path near Kuzmolovo, north of Saint Petersburg. The fungus showed a resupinate polypore morphology with spiny and warty pores. In both locations, the fungus grew in a prostrate manner, forming a crust-like layer on its substrate. The observations suggest that Xylodon raduloides can thrive in various environments, including dry branches and logs, in the region. Its growth pattern and morphology were consistent across different observation points.
Russian web-forums Planeta Gribov, V Kontakte, and Griby Sredney Polosy for learning names of local mushrooms.
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