Corticioid mushrooms Physisporinus vitreus covering a stump near Lisiy Nos. West from Saint Petersburg, Russia, August 26, 2018
Saint Petersburg, Russia, 197755Synonyms: Boletus vitreus, Leptoporus undatus, Physisporus vitreus, Podoporia vitrea, Polyporus adiposus, Polyporus vitreus, Poria adiposa, Poria vitrea, Rigidoporus vitreus, Skeletocutis amorpha.
Russian name: Fizisporinus prosvechivaiushchiy.
Extract from Wikipedia article: Physisporinus vitreus is a species of crust fungus in the family Meripilaceae, and the type species of the genus Physisporinus. It was originally described by Christian Hendrik Persoon by 1796. Petter Adolf Karsten transferred it to the genus Physisporinus in 1889.
Physisporinus vitreus is a crust fungus that grows on dead wood, characterized by its glassy, translucent to straw-colored fruiting body. In St. Petersburg and Leningrad Oblast, it has been found on various substrates, including birch, alder, and willow. In north-western Russia, it is considered a relatively rare species, typically occurring in old-growth forests and woodland areas with abundant deciduous trees. The fungus is often associated with moist, shaded environments and can be found throughout the growing season, from spring to autumn.
Corticioid mushrooms Physisporinus vitreus covering a stump near Lisiy Nos. West from Saint Petersburg, Russia, August 26, 2018Saint Petersburg, Russia, 197755
Porous corticioid mushroom Physisporinus vitreus on a rotting stump near Lisiy Nos. West from Saint Petersburg, Russia, August 26, 2018Saint Petersburg, Russia, 197755
Porous crust fungus Physisporinus vitreus covering spruce(?) stump near Lisiy Nos, west from Saint Petersburg. Russia, September 1, 2018Saint Petersburg, Russia, 197755
Porous corticioid mushroom Physisporinus vitreus on a stump in Sosnovka Park. Saint Petersburg, Russia, September 4, 2018Unnamed Road, Sankt-Peterburg, Russia, 194064
Close up of porous corticioid mushroom Physisporinus vitreus in Sosnovka Park. Saint Petersburg, Russia, September 4, 2018Unnamed Road, Sankt-Peterburg, Russia, 194064Observations of Physisporinus vitreus in Leningrad Oblast and north-western Russia reveal the fungus grows on rotting stumps, covering them with a porous crust. On August 26, 2018, it was found on a stump near Lisiy Nos, west of Saint Petersburg, and again on September 1, 2018, on a spruce stump in the same area. The fungus was also observed in Sosnovka Park, Saint Petersburg, on September 4, 2018, where it covered a stump with its characteristic porous corticioid structure. A close-up of the fungus in Sosnovka Park showed its detailed texture. These sightings indicate that Physisporinus vitreus is present in the region, thriving on decaying wood in various locations near Saint Petersburg. The observations highlight the fungus's ability to colonize and decompose rotting stumps in different environments.
Russian web-forums Planeta Gribov, V Kontakte, and Griby Sredney Polosy for learning names of local mushrooms.
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