Common names: unicorn pinkgill, Yellow Unicorn Entoloma.
Extract from Wikipedia article: Entoloma murrayi, commonly known as the yellow unicorn Entoloma or the unicorn pinkgill, is a species of fungus in the Entolomataceae family. First described from New England (USA) in 1859, the species is found in eastern North America, Central and South America, and southeast Asia, where it grows on the ground in wet coniferous and deciduous forests. The fungus produces yellow mushrooms that have a characteristic sharp umbo on the top of a conical cap. The mushroom is inedible and may be poisonous. Other similar species can be distinguished from E. murrayi by differences in color, morphology, or microscopic characteristics.
Yellow unicorn pinkgill mushrooms (Entoloma murrayi) in Little Thicket Nature Sanctuary. Found at mushroom walk of GSMS. Cleveland, Texas, November 3, 2018 Sam Houston National Forest, 394 FM 1375, New Waverly, TX 77358, USA
Caps of unicorn pinkgill mushrooms (Entoloma murrayi) on Kirby Trail in Big Thicket National Preserve. Warren, Texas, October 17, 2020 Kirby Nature Trail, Kountze, TX 77625, USA
Side view of unicorn pinkgill mushrooms (Entoloma murrayi) on Kirby Trail in Big Thicket National Preserve. Warren, Texas, October 17, 2020 Kirby Nature Trail, Kountze, TX 77625, USA
Gills of unicorn pinkgill mushrooms (Entoloma murrayi) on Kirby Trail in Big Thicket National Preserve. Warren, Texas, October 17, 2020 Kirby Nature Trail, Kountze, TX 77625, USA
Cross section of unicorn pinkgill mushrooms (Entoloma murrayi) on Kirby Trail in Big Thicket National Preserve. Warren, Texas, October 17, 2020 Kirby Nature Trail, Kountze, TX 77625, USA
Unicorn pinkgill mushrooms (Entoloma murrayi) at mushroom walk of Gulf States Mycological Society. Little Thicket Nature Sanctuary, Cleveland, Texas, November 13, 2021 San Jacinto County, Texas, United States