Orange spine mushrooms (Hydnellum aurantiacum) west from Kannelyarvi, 40 miles north from Saint Petersburg. Russia, August 7, 2012Synonyms: Calodon aurantiacus, Hydnellum complectipes, Hydnum aurantiacum, Hydnum stohlii, Hydnum suberosum, Phaeodon aurantiacus.
Common name: orange tooth.
Russian name: Gidnellum oranzhevyy.
Extract from Wikipedia article: Hydnellum aurantiacum is an inedible fungus, commonly known as the orange spine or orange Hydnellum for its reddish orange or rusty red colored fruit bodies. Like other tooth fungi, it bears a layer of spines rather than gills on the underside of the cap. Due to substantial declines in sightings, this species is listed as critically endangered in the United Kingdom.
Hydnellum aurantiacum is a rare, orange to reddish-brown tooth fungus that grows on the ground in coniferous forests. In St. Petersburg and Leningrad Oblast, it has been found in pine and spruce forests, typically in association with mosses and lichens. In north-western Russia, it is considered a endangered species due to habitat destruction and fragmentation. Fruit bodies are typically small, 2-6 cm in diameter, with spines 2-5 mm long, and appear in late summer to early fall.
Orange spine mushrooms (Hydnellum aurantiacum) west from Kannelyarvi, 40 miles north from Saint Petersburg. Russia, August 7, 2012
Orange spine mushrooms (Hydnellum aurantiacum) near Orekhovo, north from Saint Petersburg. Russia, July 27, 2016
Orange spine mushrooms (Hydnellum aurantiacum)(?) between Orekhovo and Lembolovo, north from Saint Petersburg. Russia, July 27, 2016
Orange spine mushroom (Hydnellum aurantiacum) between Orekhovo and Lembolovo, north from Saint Petersburg. Russia, July 27, 2016
Orange tooth mushrooms (Hydnellum aurantiacum) in Lindulovskaya Larch Grove, near Roshchino, 30 miles north-west from Saint Petersburg. Russia, August 29, 2017
Orange tooth mushrooms (Hydnellum aurantiacum) in cross section in Lindulovskaya Larch Grove, near Roshchino, 30 miles north-west from Saint Petersburg. Russia, August 29, 2017
Orange spine mushroom (Hydnellum aurantiacum) near Orekhovo, north from Saint Petersburg. Russia, August 24, 2018
Side view of prange spine mushroom (Hydnellum aurantiacum) near Orekhovo, north from Saint Petersburg. Russia, August 24, 2018
Orange tooth mushrooms (Hydnellum aurantiacum) in a ditch on Lenin Trail near Dibuny, north-west from Saint Petersburg. Russia, July 29, 2024
Cap texture of orange tooth mushroom (Hydnellum aurantiacum) on Lenin Trail near Dibuny, north-west from Saint Petersburg. Russia, July 29, 2024
Bumpy cap of orange tooth mushroom (Hydnellum aurantiacum) on Lenin Trail near Dibuny, north-west from Saint Petersburg. Russia, July 29, 2024
Top view of orange tooth mushroom (Hydnellum aurantiacum) on Lenin Trail near Dibuny, north-west from Saint Petersburg. Russia, July 29, 2024Observations of Hydnellum aurantiacum in Leningrad Oblast and north-western Russia reveal that the fungus is commonly found in the region. It has been spotted in various locations, including near Kannelyarvi, Orekhovo, Lembolovo, Roshchino, and Dibuny, all within 30-40 miles of Saint Petersburg. The fungus typically grows in summer and early fall, with sightings recorded in July, August, and late summer. The mushrooms often appear in damp areas, such as ditches and groves, and exhibit distinctive orange-colored spines or teeth. Photographs show the varying shapes and textures of the caps, including bumpy and smooth surfaces. Overall, Hydnellum aurantiacum appears to be a relatively common species in the region, with frequent sightings over several years. The observations provide valuable insights into the habitat and growth patterns of this fungus.
Russian web-forums Planeta Gribov, V Kontakte, and Griby Sredney Polosy for learning names of local mushrooms.
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