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Fungi: Basidiomycota: Agaricomycetes: Polyporales: Phanerochaetaceae: Climacodon septentrionalis (Fr.) P. Karst., 1881

Climacodon septentrionalis – Northern tooth

Synonyms: Creolophus septentrionalis, Hydnum septentrionale, Steccherinum septentrionale.

Common name: northern tooth.

Russian names: Klimakodon severnyy, Ezhovik severnyy.

Extract from Wikipedia article: Climacodon septentrionalis is a species of polypore fungus in the family Meruliaceae. It is a plant pathogen. Originally named Hydnum septentrionale by Elias Magnus Fries in 1821, it was transferred to the genus Climacodon by Petter Karsten in 1881.

AI-generated description

Climacodon septentrionalis is a species of tooth fungus that grows on deciduous trees, particularly birch and alder. In St. Petersburg and Leningrad Oblast, it has been found in urban parks and forests, often on fallen logs or stumps. In north-western Russia, it is widely distributed in coniferous and mixed forests, typically fruiting from July to October. The fungus produces white to cream-colored teeth and a fan-shaped to semicircular cap, reaching 10-20 cm in diameter. It is considered a rare species in the region, but its occurrence has been regularly reported in mycological surveys of the area.

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

Polypore mushroom <B>Climacodon septentrionalis</B> (northern tooth fungus) on a linden(?) tree on Pesochnaya Embankment. Saint Petersburg, Russia, <A HREF="../date-en/2016-08-04.htm">August 4, 2016</A>
LinkPolypore mushroom Climacodon septentrionalis (northern tooth fungus) on a linden(?) tree on Pesochnaya Embankment. Saint Petersburg, Russia, August 4, 2016
Location on mapsPesochnaya nab., 4, Sankt-Peterburg, Russia, 197376
Massive cluster of a polypore mushroom <B>Climacodon septentrionalis</B> (northern tooth fungus) on a linden(?) tree on Pesochnaya Embankment. Saint Petersburg, Russia, <A HREF="../date-en/2016-08-04.htm">August 4, 2016</A>
LinkMassive cluster of a polypore mushroom Climacodon septentrionalis (northern tooth fungus) on a linden(?) tree on Pesochnaya Embankment. Saint Petersburg, Russia, August 4, 2016
Location on mapsPesochnaya nab., 4, Sankt-Peterburg, Russia, 197376
Old polypore mushroom <B>Climacodon septentrionalis</B> (northern tooth fungus) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, <A HREF="../date-en/2016-10-26.htm">October 26, 2016</A>
LinkOld polypore mushroom Climacodon septentrionalis (northern tooth fungus) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, October 26, 2016
Location on mapsAptekarskaya nab., 6, Sankt-Peterburg, Russia, 197022
Young northern tooth mushrooms (<B>Climacodon septentrionalis</B>) on a maple tree in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, <A HREF="../date-en/2017-07-04.htm">July 4, 2017</A>
LinkYoung northern tooth mushrooms (Climacodon septentrionalis) on a maple tree in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 4, 2017
Location on mapsnab. Peki Karpovki, Sankt-Peterburg, Russia, 197022
Young northern tooth fungus (<B>Climacodon septentrionalis</B>) on a maple tree in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, <A HREF="../date-en/2017-07-28.htm">July 28, 2017</A>
LinkYoung northern tooth fungus (Climacodon septentrionalis) on a maple tree in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 28, 2017
Location on mapsnab. Peki Karpovki, Sankt-Peterburg, Russia, 197022
Northern tooth mushroom (<B>Climacodon septentrionalis</B>) in Lesnoy Park. Saint Petersburg, Russia, <A HREF="../date-en/2017-08-22.htm">August 22, 2017</A>
LinkNorthern tooth mushroom (Climacodon septentrionalis) in Lesnoy Park. Saint Petersburg, Russia, August 22, 2017
Location on mapsBolshoy Sampsoniyevskiy prospekt, 99, St Petersburg, Russia, 194156
Northern tooth mushroom (<B>Climacodon septentrionalis</B>) on a tree near Serdobolsky Pond in Lesnoy Park. Saint Petersburg, Russia, <A HREF="../date-en/2017-08-22.htm">August 22, 2017</A>
LinkNorthern tooth mushroom (Climacodon septentrionalis) on a tree near Serdobolsky Pond in Lesnoy Park. Saint Petersburg, Russia, August 22, 2017
Location on mapsBolshoy Sampsoniyevskiy prospekt, 99, St Petersburg, Russia, 194156

AI-generated summary of observations

Observations of Climacodon septentrionalis in Leningrad Oblast and north-western Russia reveal its presence on various tree species, including linden and maple. The fungus was found growing in clusters on trees along Pesochnaya Embankment in Saint Petersburg, with massive growths observed on August 4, 2016. In the Botanic Gardens of Komarov Botanical Institute, young northern tooth mushrooms were spotted on maple trees in July 2017, while older specimens were seen in October 2016. The fungus was also found in Lesnoy Park, growing on trees near Serdobolsky Pond and elsewhere, with sightings recorded in August 2017. These observations suggest that Climacodon septentrionalis is widespread in the region, colonizing different tree species and environments. The fungus appears to thrive in urban parks and gardens, as well as along waterways, indicating a level of adaptability and tolerance to various conditions.

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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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