Young mealy tooth mushrooms (Hydnellum ferrugineum) with red liquid between Orekhovo and Lembolovo, north from Saint Petersburg. Russia, July 27, 2016Synonyms: Calodon ferrugineus, Calodon hybridus, Hydnellum hybridum, Hydnellum pineticola, Hydnum ferrugineum, Hydnum hybridum, Phaeodon ferrugineus.
Common name: mealy tooth.
Russian names: Gidnellum rzhavchinnyy, Gidnellum tiomno-korichnevyy.
Extract from Wikipedia article: Hydnellum ferrugineum, commonly known as the mealy tooth or the reddish-brown corky spine fungus, is a species of tooth fungus in the family Bankeraceae. A widely distributed species, it is found in north Africa, Asia, Europe, and North America. The fungus fruits on the ground singly or in clusters in conifer forest, usually in poor (low nutrient) or sandy soil. Fruit bodies are somewhat top-shaped, measuring 3–10 cm (1–4 in) in diameter. Their velvety surfaces, initially white to pink, sometimes exude drops of red liquid. The lower surface of the fruit body features white to reddish-brown spines up to 6 mm long. Mature fruit bodies become dark reddish brown in color, and are then difficult to distinguish from other similar Hydnellum species. H. ferrugineum forms a mat of mycelia in the humus and upper soil where it grows. The presence of the fungus changes the characteristics of the soil, making it more podzolized.
Hydnellum ferrugineum is a rare, mycorrhizal fungus found in coniferous forests. In St. Petersburg and Leningrad Oblast, it typically grows under pine trees, especially in sandy soils with low humidity. In north-western Russia, it has been recorded in the Murmansk Oblast, Republic of Karelia, and Arkhangelsk Oblast, often associated with Scots pine and Norway spruce. Fruitbodies are small to medium-sized, 2-6 cm wide, with a ferrugineous to dark brown cap and white to pale yellowish spines.
Young mealy tooth mushrooms (Hydnellum ferrugineum) with red liquid between Orekhovo and Lembolovo, north from Saint Petersburg. Russia, July 27, 2016
Mealy tooth mushroom (Hydnellum ferrugineum, Bankeraceae) near Orekhovo, north from Saint Petersburg. Russia, August 13, 2016
Young mealy tooth mushroom (Hydnellum ferrugineum, Bankeraceae) near Orekhovo, north from Saint Petersburg. Russia, August 13, 2016
Mealy tooth mushroom (Hydnellum ferrugineum)(?) in Orekhovo, north from Saint Petersburg. Russia, August 17, 2016
Dissected mealy tooth mushroom (Hydnellum ferrugineum)(?) near Vyritsa, 50 miles south from Saint Petersburg. Russia, August 22, 2018
Mealy tooth mushrooms (Hydnellum ferrugineum, Bankeraceae) near Orekhovo, north from Saint Petersburg. Russia, August 24, 2018
Mealy tooth mushroom (Hydnellum ferrugineum) near Dibuny, north-west from Saint Petersburg. Russia, August 25, 2018
Small mealy tooth mushroom (Hydnellum ferrugineum) near Orekhovo, north from Saint Petersburg. Russia, August 1, 2024
Mealy tooth mushroom (Hydnellum ferrugineum) in Petiayarvi, north from Saint Petersburg. Russia, August 3, 2024
Mealy tooth mushroom (Hydnellum ferrugineum) with a side view in Petiayarvi, north from Saint Petersburg. Russia, August 3, 2024
Mealy tooth mushroom (Hydnellum ferrugineum) on an old sand dune overgrown by pine forest in Sestroretskoye Swamp near Saint Petersburg. Russia, August 11, 2024
Guttation of a mealy tooth mushroom (Hydnellum ferrugineum) on an old sand dune overgrown by pine forest in Sestroretskoye Swamp near Saint Petersburg. Russia, August 11, 2024
Underside of a mealy tooth mushroom (Hydnellum ferrugineum) on an old sand dune overgrown by pine forest in Sestroretskoye Swamp near Saint Petersburg. Russia, August 11, 2024
Close-up of a mealy tooth mushroom (Hydnellum ferrugineum) at Eco Trail Sestroretskoye Swamp near Saint Petersburg. Russia, August 11, 2024Observations of Hydnellum ferrugineum in Leningrad Oblast and north-western Russia show the fungus growing in various locations, including near Orekhovo, Lembolovo, Vyritsa, Dibuny, Petiayarvi, and Sestroretskoye Swamp. The mushrooms were found on different dates between July 27, 2016, and August 11, 2024. Young specimens with red liquid were observed in July 2016, while older specimens were found in August of various years. The fungus was seen growing on old sand dunes overgrown by pine forest, and its underside and guttation were also observed. Multiple sightings were recorded near Orekhovo and Saint Petersburg, indicating a possible abundance of the species in these areas. The observations provide insights into the growth habits and distribution of Hydnellum ferrugineum 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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