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.
Zoned tooth fungus Hydnellum concrescens collected by people at mushroom walk of Gulf States Mycological Society. Little Thicket Nature Sanctuary, Cleveland, Texas, November 3, 2018 Sam Houston National Forest, 394 FM 1375, New Waverly, TX 77358, USA
Zoned tooth fungus Hydnellum concrescens under oaks in Little Thicket Nature Sanctuary. Cleveland, Texas, November 3, 2018 Sam Houston National Forest, 394 FM 1375, New Waverly, TX 77358, USA
Zoned tooth fungus Hydnellum concrescens among dry oak leaves in Little Thicket Nature Sanctuary. Cleveland, Texas, November 3, 2018 Sam Houston National Forest, 394 FM 1375, New Waverly, TX 77358, USA
Zoned tooth fungus (Hydnellum concrescens) near mossy wood on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, November 20, 2021 Lone Star Hiking Trail, Montgomery County, Texas, United States
Zoned tooth fungus (Hydnellum concrescens) with oak leaves and pine needles on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, November 20, 2021 Lone Star Hiking Trail, Montgomery County, Texas, United States
Irregularly shaped zoned tooth fungus (Hydnellum concrescens) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, November 20, 2021 Lone Star Hiking Trail, Montgomery County, Texas, United States
Underside of zoned tooth fungus (Hydnellum concrescens) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, November 20, 2021 Lone Star Hiking Trail, Montgomery County, Texas, United States
Close-up of zoned tooth fungus (Hydnellum concrescens) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, November 20, 2021 Lone Star Hiking Trail, Montgomery County, Texas, United States
Zoned tooth fungus (Hydnellum concrescens) and its underside view on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, November 20, 2021 Lone Star Hiking Trail, Montgomery County, Texas, United States
Zoned tooth fungus (Hydnellum concrescens) with a cross section on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, November 20, 2021 Lone Star Hiking Trail, Montgomery County, Texas, United States
Cross section of zoned tooth fungus (Hydnellum concrescens) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, November 20, 2021 Lone Star Hiking Trail, Montgomery County, Texas, United States
Cap texture of zoned tooth fungus (Hydnellum concrescens) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, November 20, 2021 Lone Star Hiking Trail, Montgomery County, Texas, United States
Dissected zoned tooth fungus (Hydnellum concrescens) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, November 20, 2021 Lone Star Hiking Trail, Montgomery County, Texas, United States
Teeth arrangement of zoned tooth fungus (Hydnellum concrescens) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, November 20, 2021 Lone Star Hiking Trail, Montgomery County, Texas, United States