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Fungi: Basidiomycota: Agaricomycetes: Polyporales: Fomitopsidaceae: Pycnoporellus fulgens (Fr.) Donk, 1971

Pycnoporellus fulgens

Synonyms: Creolophus fulgens, Dryodon fulgens, Hapalopilus fibrillosus, Hydnum fulgens, Inoderma fibrillosum, Inonotus fibrillosus, Microporus aurantiacus, Microporus lithuanicus, Phaeolus aurantiacus, Phaeolus fibrillosus, Polyporus aurantiacus, Polyporus fibrillosus, Polyporus lithuanicus, Polystictus aurantiacus, Polystictus lithuanicus, Pycnoporellus fibrillosus.

Russian name: Piknoporellus blestyashchiy.

AI-generated description

Pycnoporellus fulgens is a rare, brightly colored fungus found in northern regions. In St. Petersburg, Leningrad Oblast, and north-western Russia, it typically grows on coniferous trees, particularly spruce and fir, from July to October. The fungus has a bright orange to yellow-orange cap, 2-6 cm in diameter, with a velvety to woolly surface and white to yellow pores underneath. It is considered a vulnerable species due to habitat loss and limited distribution. Records of Pycnoporellus fulgens in the region are sparse, but it has been spotted in forests and parks around St. Petersburg, including the Karelian Isthmus and the Valdai Hills.

Photos of this mushroom from the area of St. Petersburg, Russia

Orange polypore mushroom <B>Pycnoporellus fulgens</B> on a rotten log in Lisiy Nos, 5 miles west from Saint Petersburg. Russia, <A HREF="../date-en/2016-08-05.htm">August 5, 2016</A>
LinkOrange polypore mushroom Pycnoporellus fulgens on a rotten log in Lisiy Nos, 5 miles west from Saint Petersburg. Russia, August 5, 2016
Location on mapsPrimorskoye sh., g. Sankt-Peterburg, Russia, 197755
Tinder bracket mushrooms <B>Pycnoporellus fulgens</B> on birch logs in Sosnovka Park. Saint Petersburg, Russia, <A HREF="../date-en/2017-07-06.htm">July 6, 2017</A>
LinkTinder bracket mushrooms Pycnoporellus fulgens on birch logs in Sosnovka Park. Saint Petersburg, Russia, July 6, 2017
Location on mapsUnnamed Road, Sankt-Peterburg, Russia
Timber mushrooms <B>Pycnoporellus fulgens</B> on a birch log in Sosnovka Park. Saint Petersburg, Russia, <A HREF="../date-en/2017-07-19.htm">July 19, 2017</A>
LinkTimber mushrooms Pycnoporellus fulgens on a birch log in Sosnovka Park. Saint Petersburg, Russia, July 19, 2017
Location on mapsUnnamed Road, Sankt-Peterburg, Russia
Timber mushrooms <B>Pycnoporellus fulgens</B>(?) in Sosnovka Park. Saint Petersburg, Russia, <A HREF="../date-en/2017-07-20.htm">July 20, 2017</A>
LinkTimber mushrooms Pycnoporellus fulgens(?) in Sosnovka Park. Saint Petersburg, Russia, July 20, 2017
Location on mapsUnnamed Road, Sankt-Peterburg, Russia, 194064
Bracket mushrooms <B>Pycnoporellus fulgens</B> near Lembolovo, 40 miles north from Saint Petersburg. Russia, <A HREF="../date-en/2017-08-27.htm">August 27, 2017</A>
LinkBracket mushrooms Pycnoporellus fulgens near Lembolovo, 40 miles north from Saint Petersburg. Russia, August 27, 2017
Location on mapsUnnamed Road, Leningradskaya oblast', Russia, 188695
Orange polypore mushroom <B>Pycnoporellus fulgens</B> on a falen spruce tree in Tarkhovka near Sestroretsk. West from Saint Petersburg, Russia, <A HREF="../date-en/2018-08-18.htm">August 18, 2018</A>
LinkOrange polypore mushroom Pycnoporellus fulgens on a falen spruce tree in Tarkhovka near Sestroretsk. West from Saint Petersburg, Russia, August 18, 2018
Location on mapsPeschanaya Ulitsa, 3, Tarkhovka, Sankt-Peterburg, Russia, 197701
Top view of polypore mushrooms <B>Pycnoporellus fulgens</B> on a spruce log in a forest east from a train stop Platform 46 km near Semrino, south from Saint Petersburg. Russia, <A HREF="../date-en/2024-08-10.htm">August 10, 2024</A>
LinkTop view of polypore mushrooms Pycnoporellus fulgens on a spruce log in a forest east from a train stop Platform 46 km near Semrino, south from Saint Petersburg. Russia, August 10, 2024
Location on mapsГатчинский муниципальный округ, Ленинградская область, Северо-Западный федеральный округ, 188345, Россия
Caps of polypore mushrooms <B>Pycnoporellus fulgens</B> on a spruce log in a forest east from a train stop Platform 46 km near Semrino, south from Saint Petersburg. Russia, <A HREF="../date-en/2024-08-10.htm">August 10, 2024</A>
LinkCaps of polypore mushrooms Pycnoporellus fulgens on a spruce log in a forest east from a train stop Platform 46 km near Semrino, south from Saint Petersburg. Russia, August 10, 2024
Location on mapsГатчинский муниципальный округ, Ленинградская область, Северо-Западный федеральный округ, 188345, Россия
Underside of polypore mushrooms <B>Pycnoporellus fulgens</B> on a spruce log in a forest east from a train stop Platform 46 km near Semrino, south from Saint Petersburg. Russia, <A HREF="../date-en/2024-08-10.htm">August 10, 2024</A>
LinkUnderside of polypore mushrooms Pycnoporellus fulgens on a spruce log in a forest east from a train stop Platform 46 km near Semrino, south from Saint Petersburg. Russia, August 10, 2024
Location on mapsГатчинский муниципальный округ, Ленинградская область, Северо-Западный федеральный округ, 188345, Россия

AI-generated summary of observations

Pycnoporellus fulgens was observed growing on various substrates in Leningrad Oblast and north-western Russia. The fungus was found on rotten logs in Lisiy Nos, birch logs in Sosnovka Park, and a fallen spruce tree in Tarkhovka. It also grew on spruce logs in forests near Semrino and Lembolovo. Observations were made at different times of the year, including July, August, and possibly other months. The fungus was identified by its characteristic orange color and polypore morphology, with some observations noting the underside and caps of the mushrooms. The species appears to be widespread in the region, colonizing various types of decaying wood. Multiple sightings were recorded in Sosnovka Park and near Saint Petersburg, suggesting a relatively common occurrence in these areas.

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Links

Acknowledgements

Russian web-forums Planeta Gribov, V Kontakte, and Griby Sredney Polosy for learning names of local mushrooms.

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