Extract from Wikipedia article: Hydnellum concrescens is an inedible fungus, commonly known as the zoned hydnellum or zoned tooth fungus. As with other tooth fungi, the spores are produced on spines on the underside of the cap, rather than gills. It has a funnel-shaped cap, typically between 2 and 7 cm (0.8–2.8 in) in diameter, which has characteristic concentric zones of color. The cap may also have radial ridges extending from the center to the margins. The spines are pink in young specimens, but turn brown with age.
AI-generated description
Hydnellum concrescens is a rare, pinkish-brown to reddish-brown tooth fungus that grows in association with coniferous trees. In St. Petersburg and Leningrad Oblast, it has been found in spruce and pine forests, typically on acidic soils. In north-western Russia, the species is considered endangered due to habitat loss and degradation. Fruitbodies are usually small, 2-5 cm in diameter, with a wavy or lobed cap and crowded, brittle spines. The fungus has been recorded in several nature reserves and protected areas in the region, including the Karelian Isthmus and the Valdai Hills.
Zoned hydnellum mushrooms (zoned tooth fungus, Hydnellum concrescens) near Kavgolovskoe Lake in Toksovo, north from Saint Petersburg. Russia, August 2, 2016 Dachnaya ul., Leningradskaya oblast', Russia, 188664
Zoned hydnellum mushrooms (zoned tooth fungus, Hydnellum concrescens)(?) in Zakhodskoe, 50 miles north from Saint Petersburg. Leningrad Region, Russia, August 7, 2016 Unnamed Road, Leningradskaya oblast', Russia, 188861
Zoned tooth mushrooms (Hydnellum concrescens)(?) in area of Lembolovo - Orekhovo, 35 miles north from Saint Petersburg. Russia, August 8, 2017 Unnamed Road, Leningradskaya oblast', Russia
Black tooth mushrooms (Phellodon niger) together with Zoned tooth (Hydnellum concrescens) on roadside on west side of Kavgolovskoe Lake near Toksovo, north from Saint Petersburg. Russia, August 25, 2017 Dachnaya Ulitsa, Leningradskaya oblast', Russia, 188664
Zoned tooth mushrooms (Hydnellum concrescens) in Petiayarvi, north from Saint Petersburg. Russia, September 17, 2017 Unnamed Road, Leningradskaya oblast', Russia, 188732
Zoned tooth mushrooms (Hydnellum concrescens)(?) in area of Lisiy Nos - Olgino west from Saint Petersburg. Russia, September 21, 2017 Primorskoye Shosse, Sankt-Peterburg, Russia, 197755
Zoned tooth mushrooms (Hydnellum concrescens) in Kuzmolovo, north from Saint Petersburg. Russia, August 23, 2018 Unnamed Road, Leningradskaya oblast', Russia
Zoned tooth fungus (Hydnellum concrescens) near Kavgolovskoe Lake in Toksovo, north from Saint Petersburg. Russia, September 5, 2018 Leningrad Oblast, Russia, 188667
Zoned tooth mushrooms (Hydnellum concrescens) near Lisiy Nos, west from Saint Petersburg. Russia, July 19, 2024 Приморское шоссе, Раздельная, Лисий Нос, Санкт-Петербург, Северо-Западный федеральный округ, 189645, Россия
Zoned tooth mushrooms (Hydnellum concrescens) near a road west from Kavgolovskoe Lake (Syariunlakhti), near Toksovo. North from Saint Petersburg, Russia, July 26, 2024 Токсовское городское поселение, Всеволожский район, Ленинградская область, Северо-Западный федеральный округ, Россия
Zoned tooth (Hydnellum concrescens) on an old railroad grade in Kuzmolovo, north from Saint Petersburg. Russia, August 9, 2024 Бывшая узкоколейка, Город Всеволожск, Всеволожский район, Ленинградская область, Северо-Западный федеральный округ, 188663, Россия
Zoned tooth mushrooms (Hydnellum concrescens) between Oselki and Toksovo, north from Saint Petersburg. Russia, August 13, 2024 Токсовское городское поселение, Всеволожский район, Ленинградская область, Северо-Западный федеральный округ, Россия
AI-generated summary of observations
Observations of Hydnellum concrescens in Leningrad Oblast and north-western Russia reveal its presence in various locations near Saint Petersburg. The fungus was found near Kavgolovskoe Lake in Toksovo, Zakhodskoe, Lembolovo, Petiayarvi, Lisiy Nos, Olgino, Kuzmolovo, and between Oselki and Toksovo. It was observed growing alone and with other species, such as Phellodon niger. The sightings occurred over several years, from 2016 to 2024, during the months of July, August, and September. The fungus was found in different habitats, including roadside areas, old railroad grades, and near lakes. The consistent presence of Hydnellum concrescens in these locations suggests that it is a common species in the region. Repeat sightings in the same areas, such as near Kavgolovskoe Lake, indicate that the fungus may be perennial or regularly fruiting in these locations.
Comments
Search of mushroom species for given keywords "Hydnellum concrescens" was done through
catalogueoflife.org.