Poroid fungus (mushroom) Trichaptum fuscoviolaceum in Sosnovka Park. Saint Petersburg, Russia, September 6, 2016
Unnamed Road, Sankt-Peterburg, RussiaSynonyms: Acia hollii, Agaricus decipiens, Boletus decipiens, Hirschioporus fuscoviolaceus, Hydnum candidum, Hydnum decipiens, Hydnum fuscoviolaceum, Hydnum hollii, Irpex candidus, Irpex fuscoviolaceus, Irpex violaceus, Merulius violaceus, Odontia hollii, Polyporus abietinus, Sistotrema candidum, Sistotrema carneum, Sistotrema fuscoviolaceum, Sistotrema hollii, Sistotrema violaceum, Trametes abietina, Trichaptum hollii, Xylodon candidus, Xylodon fuscoviolaceus.
Common name: violet-toothed polypore.
Russian name: Trikhaptum buro-fioletovyy.
Trichaptum fuscoviolaceum is a species of fungus that belongs to the family Polyporaceae. It is a bracket fungus with semicircular to fan-shaped caps, typically 2-8 cm in diameter, and has a violet-brown to dark brown upper surface. The pores are small and angular, with 3-5 pores per mm. In St. Petersburg, Leningrad Oblast, and north-western Russia, Trichaptum fuscoviolaceum is commonly found on deciduous trees, particularly on dead or dying trunks and branches of birch, aspen, and alder. It grows solitary or in small groups, typically from June to October. The fungus is relatively rare in the region, but can be locally abundant in areas with suitable substrates.
Poroid fungus (mushroom) Trichaptum fuscoviolaceum in Sosnovka Park. Saint Petersburg, Russia, September 6, 2016Unnamed Road, Sankt-Peterburg, Russia
Poroid fungus (mushroom) Trichaptum fuscoviolaceum on a small dry pine in Sosnovka Park. Saint Petersburg, Russia, April 4, 2017Unnamed Road, Sankt-Peterburg, Russia
Corticioid form of mushroom Trichaptum fuscoviolaceum growing on bark of pine in Sosnovka Park. Saint Petersburg, Russia, April 4, 2017Unnamed Road, Sankt-Peterburg, Russia
Mushroom Trichaptum fuscoviolaceum with algae on a fallen pine tree in Sosnovka Park. Saint Petersburg, Russia, April 4, 2017Unnamed Road, Sankt-Peterburg, Russia
Corticioid form of mushroom Trichaptum fuscoviolaceum on a fallen pine in Sosnovka Park. Saint Petersburg, Russia, April 4, 2017Unnamed Road, Sankt-Peterburg, Russia
Crust of corticioid form of mushroom Trichaptum fuscoviolaceum on a fallen pine in Sosnovka Park. Saint Petersburg, Russia, April 4, 2017Unnamed Road, Sankt-Peterburg, Russia
Pattern of corticioid form of mushroom Trichaptum fuscoviolaceum on a fallen pine in Sosnovka Park. Saint Petersburg, Russia, April 4, 2017Unnamed Road, Sankt-Peterburg, Russia
Texture of corticioid form of mushroom Trichaptum fuscoviolaceum on a fallen pine in Sosnovka Park. Saint Petersburg, Russia, April 4, 2017Unnamed Road, Sankt-Peterburg, Russia
Crust of fungus Trichaptum fuscoviolaceum on a fallen pine in Sosnovka Park. Saint Petersburg, Russia, April 4, 2017Unnamed Road, Sankt-Peterburg, Russia
Polypore mushrooms Trichaptum fuscoviolaceum on a fallen pine branch in Sosnovka Park. Saint Petersburg, Russia, May 27, 2019Unnamed Road, Sankt-Peterburg, RussiaIn Leningrad Oblast and north-western Russia, observations of Trichaptum fuscoviolaceum reveal its presence on various substrates. The fungus was found growing on a small dry pine in Sosnovka Park, Saint Petersburg, as well as on fallen pine trees and branches. Both poroid and corticioid forms of the mushroom were observed, with the latter forming crusts on bark and wood. The corticioid form exhibited distinct patterns and textures on the substrate. Additionally, algae were found growing on some specimens of Trichaptum fuscoviolaceum, suggesting a possible symbiotic relationship. The fungus was observed in different seasons, including September 2016 and April and May 2017 and 2019, indicating its persistence in the region. Overall, these observations highlight the adaptability and varied growth forms of Trichaptum fuscoviolaceum in north-western Russia.
Russian web-forums Planeta Gribov, V Kontakte, and Griby Sredney Polosy for learning names of local mushrooms.
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