Synonyms: Hydnum murrillii, Hydnum radicatum, Hydnum underwoodii, Sarcodon fuligineoviolaceus, Sarcodon ionides, Sarcodon murrillii, Sarcodon radicatus.
Common name: eastern scaly-cap sarcodon.
Extract from Wikipedia article: 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 underwoodii is a species of tooth fungus that grows on the ground in association with trees, particularly oak and pine. In East and Central Texas, it typically fruits from May to October, producing brown to dark brown caps with grayish-brown to blackish-brown undersides bearing crowded, coarse spines. The flesh is white to pale brown and has a mild to slightly bitter taste. It can be found in woodland areas, often in sandy or acidic soils, and is considered edible but not highly prized due to its variable flavor and texture.
Observations of the fungus Sarcodon underwoodii in East and Central Texas reveal that it grows under longleaf pines. On November 10, 2018, toothed mushrooms were collected during a mushroom walk at Watson Rare Native Plant Preserve in Warren, Texas, with notable observations of their underside. Two years later, on November 14, 2020, similar collections were made under longleaf pines at the same preserve, highlighting the velvety caps of the tooth mushrooms. The species appears to thrive in this specific habitat, with repeated sightings in the same area over time. The consistent association with longleaf pines suggests a potential symbiotic relationship between the fungus and the tree species. Further observations may reveal more about the ecological role of Sarcodon underwoodii in these ecosystems. The fungus's unique characteristics, such as its toothed underside, were consistently observed.
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