Hydnellum peckii is a fungus in the genus Hydnellum of the family Bankeraceae. It is a hydnoid species, producing spores on the surface of vertical spines or tooth-like projections that hang from the undersurface of the fruit bodies. It is found in North America, Europe, and was recently discovered in Iran (2008) and Korea (2010). Hydnellum peckii is a mycorrhizal species, and forms mutually beneficial relationships with a variety of coniferous trees, growing on the ground singly, scattered, or in fused masses.
Hydnellum is a genus of tooth fungi in the family Bankeraceae. Widely distributed in the Northern Hemisphere, the genus contains around 40 species. The fruitbodies of its members grow by slowly enveloping nearby bits of grass and vegetation. There is great variability in the form of Hydnellum fruitbodies, which are greatly influenced by environmental conditions such as rainfall and humidity, drying winds, and temperature. They are too tough and woody to eat comfortably. Several species have become the focus of increasing conservation concern following widespread declines in abundance.
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.
The hydnoid fungi are a group of fungi in the Basidiomycota with basidiocarps producing spores on pendant, tooth-like or spine-like projections. They are colloquially called tooth fungi. Originally such fungi were referred to the genus Hydnum, but it is now known that not all hydnoid species are closely related.
Howard James Banker was an American mycologist. He received his PhD from Columbia University in 1908. Banker was an associate editor of the journal Mycologia starting from its establishment in 1909, until it became the official publication of the Mycological Society of America in 1933. He published several papers in the journal, including a revision of the North American Hydnaceae, which discussed 62 species in 10 genera. Banker died at his home in Huntington, New York, in 1940. The genus Bankera is named after him.
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 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 geogenium is a species of tooth fungus in the family Bankeraceae. It was described as new to science in 1852 by Elias Magnus Fries. Howard James Banker transferred it to the genus Hydnellum in 1913. The fungus is found in Europe and North America, where it grows in coniferous woods. It is inedible. H. geogenium is considered endangered in Switzerland. Fruitbodies of the fungus contain a yellow pigment compound called geogenin.
Hydnellum auratile is a tooth fungus in the family Bankeraceae. Fruit bodies of the fungus consist of closely grouped, funnel-shaped caps up to 5 cm (2.0 in) in diameter. The caps are initially bright orange with a white rim, and have a felt-like surface. On the cap underside, the hymenium has hanging orange spines with whitish tips. These spines extend a ways down the length of the short stipe. The flesh is orange in both the cap and stipe. In mass, the spores are brown. Microscopically, they measure 4–5 by 3.5–4.5 µm and have short, rounded tubercles on the surface. The widespread Hydnellum aurantiacum is a close lookalike, but can be distinguished by having a white to buff cap, dull orange to brown flesh, and white spines.
Hydnellum compactum is a tooth fungus in the family Bankeraceae. It is found in Europe, where it grows in deciduous forest, typically under beech. Fruit bodies of the fungus grow singly or in groups. They are top-shaped, with convex or flattened upper surfaces up to 10 cm (4 in) in diameter. The surface texture is initially felt-like before becoming pitted and rough in age. The stipe, roughly the same color as the cap, is solid and measures 2–4 cm (0.8–1.6 in) long by 1–3 cm (0.4–1.2 in) thick. On the fertile cap underside are white to purple-brown, curved spines up to 5 mm long. The color is whitish at first but gradually turns dark brown to blackish. Its spores measure 5.5–6 by 3.5–4.5 µm, and feature tubercles that sometimes have a sunken tip. It is considered endangered in Switzerland.
Hydnellum mirabile is an inedible species of tooth fungus in the family Bankeraceae. It is found in Europe and North America, where it grows on the ground in forested areas. Caps are brownish to dark brown with yellow edges, and have a hairy surface. On the cap underside hang brownish spines with paler tips. The spores are roughly spherical with tubercles on the surface, and measure 5–7 by 4.5–6 µm.
Hydnellum complicatum is a tooth fungus in the family Bankeraceae. Found in North America, it was described as new to science by mycologist Howard James Banker in 1906 from collections made in New York. Banker, who described the fruitbody as "irregular and complicated", considered it closely related to H. floriforme, differing in its reddish color and smaller spores.
Hydnellum earlianum, commonly known as Earl's hydnum, is a tooth fungus in the family Bankeraceae found in North America. It was described as new to science in 1906 by Howard James Banker from collections originally made in Georgia. The specific epithet honors mycologist Franklin Sumner Earle, "whose excellent field notes have frequently aided in the discrimination of species in this family".
Hydnellum spongiosipes, commonly known as the velvet tooth, is a tooth fungus in the family Bankeraceae. It is found in Europe and North America. In Switzerland, it is considered a vulnerable species.
Hydnellum cristatum is a tooth fungus in the family Bankeraceae found in Europe and North America. It was originally described as a species of Hydnum by Italian mycologist Giacomo Bresadola in 1902. Joost Stalpers transferred it to the genus Hydnellum in 1993.
Hydnellum scrobiculatum, commonly known as the ridged tooth, is a tooth fungus in the family Bankeraceae. Widely distributed in the Northern Hemisphere, it is found in Asia, Europe, and North America.
Hydnellum conigenum, commonly known as the funnel hydnum, is a species of tooth fungus in the family Bankeraceae found in North America. It was first described in 1903 by American mycologist Charles Horton Peck from collections made growing on fallen cones of ponderosa pine, near the base of the Moscow Mountains. Peck thought it was similar to H. aurantiacum, differing in its smaller size, more slender stipe, non-zoned flesh, more even cap, and somewhat unusual substrate. Howard James Banker transferred it to the genus Hydnellum in 1906. Its range extends from New Mexico to British Columbia and the Great Lakes region, where it grows in coniferous forests.
Hydnellum underwoodii is an inedible species of tooth fungus in the family Bankeraceae. Found in North America, it was described as new to science in 1906 by American mycologist Howard James Banker. Its reddish-brown, convex to flattened cap measures 5–14 cm (2.0–5.5 in) in diameter. Reddish-brown, partially erect scales adorn the cap surface. Spines on the cap underside are 1–3 mm long; they are initially white, becoming brown with grayish tips in age. The oval to spherical spores are 6–7.5 by 5.5–6.5 µm. The fungus fruits singly or scattered, on the ground in coniferous forests.
Sarcodon roseolus is a species of tooth fungus in the family Bankeraceae. Found in North America, it was described as new to science in 1913 by mycologist Howard James Banker, who collected the type specimens in North Carolina.
Hydnellum gracilipes is a species of tooth fungus in the family Bankeraceae. It was first described scientifically in 1886 by Petter Karsten, who called it Hydnum gracilipes. He transferred it to the genus Hydnellum in 1879. Fruit bodies of the fungus have a pinkish to reddish-brown colour, a delicate texture described as "felty or papery", and flimsy stipes. Its spores are roughly spherical with a diameter of no more than 5 µm. H. gracilipes is found in northern Europe, where it is mycorrhizal with pine. Collections made in Scotland have been found by lifting the dense ground cover of common heather, which the fungus seems to use to as support to compensate for its flimsy stipe.
Hydnellum versipelle is a species of tooth fungus in the family Bankeraceae. It was originally described by Elias Fries in 1861 as Hydnum versipelle. Taisiya Lvovna Nikolayeva transferred it to the genus Sarcodon in 1961. Hydnum crassum, published by Kenneth A. Harrison in 1961, is a synonym. The species is found in Europe and North America.
