The Thelephorales are an order of fungi in the class Agaricomycetes. The order includes corticioid and hydnoid fungi, together with a few polypores and clavarioid species. Most fungi within the Thelephorales are ectomycorrhizal. None is of any great economic importance, though Sarcodon imbricatus is edible and commercially marketed, whilst several species have been used for craft dyeing.
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 caeruleum, commonly known as the blue-gray hydnellum, blue-green hydnellum, blue spine, blue tooth, or bluish tooth, is an inedible fungus found in North America, Europe, and temperate areas of Asia.
Phellodon is a genus of tooth fungi in the family Bankeraceae. Species have small- to medium-sized fruitbodies with white spines on the underside from which spores are released. All Phellodon have a short stalk or stipe, and so the genus falls into the group known as stipitate hydnoid fungi. The tough and leathery flesh usually has a pleasant, fragrant odor, and develops a cork-like texture when dry. Neighboring fruitbodies can fuse, sometimes producing large mats of joined caps. Phellodon species produce a white spore print, while the individual spores are roughly spherical to ellipsoid in shape, with spiny surfaces.
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.
Hydnellum fuscoindicum, commonly known as the violet hedgehog, is a species of tooth fungus in the genus Hydnellum. It is found in the Pacific Northwest in moss around western hemlocks. It produces fruit bodies with a violet-black cap, violet flesh, and violet spines on the cap underside. The odor and taste are very farinaceous. The fungus was first described by Kenneth A. Harrison in 1964 as a species of Hydnum, then transferred to Sarcodon in 1967 by Rudolph Arnold Maas Geesteranus. He placed this species in section Violacei of Sarcodon, along with H. fuligineoviolaceum and H. joeides.
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.
Hydnellum fuligineoviolaceum is a species of tooth fungus in the family Bankeraceae. It was originally described in 1874 by Hungarian mycologist Károly Kalchbrenner as Hydnum fuligineoviolaceum, in Elias Fries's work Hymenomycetes europaei. Narcisse Théophile Patouillard transferred it to the genus Sarcodon in 1900. Sarcodon talpa, published by Rudolph Arnold Maas Geesteranus in 1967, is a synonym.
Hydnellum martioflavum is a species of tooth fungus in the family Bankeraceae, found in Europe and North America.
Hydnellum joeides is a species of tooth fungus in the family Bankeraceae.
Hydnellum fennicum is a species of tooth fungus in the family Bankeraceae. It was originally described by Petter Karsten in 1882 as a variety of Sarcodon scabrosus. Karsten promoted it to a distinct species in 1887. It is considered critically endangered in Switzerland. It is inedible.
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.
Hydnellum scabrosum, also called bitter tooth or bitter hedgehog, is a species of tooth fungus in the family Bankeraceae.
Hydnellum gatesiae is a species of mushroom in the family Bankeraceae. It was described by James K. Douch, Luke J. Vaughan, and Tom W. May in 2024. The specific epithet refers to Genevieve M. Gates, who collected all specimens used in the species description. The type locality is Kermandie Falls, Australia.
Hydnellum nothofagacearum is a species of mushroom in the family Bankeraceae. It was described by James K. Douch and Jerry A. Cooper in 2024. The specific epithet refers to Nothofagaceae, with which these fungi are associated. The type locality is in Nelson Lakes National Park, New Zealand.
Hydnellum pseudoioeides is a species of mushroom in the family Bankeraceae. It was described by James K. Douch and Jerry A. Cooper in 2024. The specific epithet refers to this species' misidentification as H. ioeides. The type locality is Otago Lakes, New Zealand.
Hydnellum variisporum is a species of mushroom in the family Bankeraceae. It was described by James K. Douch, Richard Robinson, and Luke J. Vaughan in 2024. The specific epithet refers to variability observed in the spores. The type locality is Denmark, Western Australia.
Sarcodon austrofibulatus is a species of mushroom in the family Bankeraceae. It was described by James K. Douch, Luke J. Vaughan, and Tom W. May in 2024. The specific epithet refers to presence of clamp connections. The type locality is Wombat State Forest, Australia.
Neosarcodon carbonarius is a species of mushroom in the family Bankeraceae. It was originally described by Rudolf Arnold Maas Geesteranus, as Sarcodon carbonarius, but transferred to the genus Neosarcodon by Jerry A. Cooper and Tom W. May in 2024. It occurs in New Zealand.
