Extract from Wikipedia article: Tylopilus rubrobrunneus, commonly known as the reddish brown bitter bolete, is a bolete fungus in the family Boletaceae. It was first described scientifically in 1967 by Samuel J. Mazzer and Alexander H. Smith from collections made in Michigan. It is found in the United States; the bolete was reported from a Mexican beech (Fagus mexicana) forest in Hidalgo, Mexico in 2010.
Bitter bolete mushrooms (Tylopilus rubrobrunneus) and Golden Threads Lepidella (Amanita canescens) in Lick Creek Park. College Station, Texas, July 2, 2018 Yaupon Loop, College Station, TX 77845, USA
Underside of bitter bolete mushrooms (Tylopilus rubrobrunneus) in Lick Creek Park. College Station, Texas, July 2, 2018 Yaupon Loop, College Station, TX 77845, USA
Pair of bitter bolete mushrooms (Tylopilus rubrobrunneus) in Lick Creek Park. College Station, Texas, July 2, 2018 Yaupon Loop, College Station, TX 77845, USA
Bitter bolete mushroom Tylopilus rubrobrunneus on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 13, 2018 Lone Star Hiking Trail, Montgomery, TX 77356, USA
Side view of a bitter bolete mushroom Tylopilus rubrobrunneus on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 13, 2018 Lone Star Hiking Trail, Montgomery, TX 77356, USA
Cross section of a bitter bolete mushroom Tylopilus rubrobrunneus on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 13, 2018 Lone Star Hiking Trail, Montgomery, TX 77356, USA
Cap of bitter bolete mushroom Tylopilus rubrobrunneus on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 15, 2018 Lone Star Hiking Trail, Montgomery, TX 77356, USA
Underside of bitter bolete mushroom Tylopilus rubrobrunneus on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 15, 2018 Lone Star Hiking Trail, Montgomery, TX 77356, USA
Dissected bitter bolete mushroom Tylopilus rubrobrunneus on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 15, 2018 Lone Star Hiking Trail, Montgomery, TX 77356, USA
Amanita sect. Validae, Boletus pallidus, and Tylopilus rubrobrunneus mushrooms in Lick Creek Park. College Station, Texas, July 19, 2018 Yaupon Loop, College Station, TX 77845, USA
Bitter bolete mushrooms (Tylopilus rubrobrunneus) in Lick Creek Park. College Station, Texas, July 23, 2018 Yaupon Loop, College Station, TX 77845, USA
Dissected bitter bolete mushrooms (Tylopilus rubrobrunneus) in Lick Creek Park. College Station, Texas, July 23, 2018 Yaupon Loop, College Station, TX 77845, USA
Reddish-brown bitter bolete mushrooms (Tylopilus rubrobrunneus) in Lick Creek Park. College Station, Texas, June 2, 2020 Iron Bridge Trail, College Station, TX 77845, USA
Caps of bitter bolete mushrooms Tylopilus rubrobrunneus on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, July 31, 2020 Lone Star Hiking Trail, Montgomery, TX 77356, USA
Bitter bolete mushrooms Tylopilus rubrobrunneus under pines on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, July 31, 2020 Lone Star Hiking Trail, Montgomery, TX 77356, USA
Dissected bitter bolete mushrooms Tylopilus rubrobrunneus on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, July 31, 2020 Lone Star Hiking Trail, Montgomery, TX 77356, USA
Reddish-brown bitter bolete mushroom (Tylopilus rubrobrunneus) in Lick Creek Park. College Station, Texas, July 5, 2021
Underside of reddish-brown bitter bolete mushroom (Tylopilus rubrobrunneus) in Lick Creek Park. College Station, Texas, July 5, 2021
Cross section of reddish-brown bitter bolete mushroom (Tylopilus rubrobrunneus) in Lick Creek Park. College Station, Texas, July 5, 2021
Reddish-brown bitter bolete mushroom (Tylopilus rubrobrunneus(?)) in Lick Creek Park. College Station, Texas, July 13, 2021 14802 Rock Prairie Rd, College Station, TX 77845, USA
Cross section of young reddish-brown bitter bolete mushroom (Tylopilus rubrobrunneus(?)) in Lick Creek Park. College Station, Texas, July 13, 2021 14802 Rock Prairie Rd, College Station, TX 77845, USA
Reddish-brown bitter bolete mushroom (Tylopilus rubrobrunneus) together with brown fibrecap (Inocybe) in Lick Creek Park. College Station, Texas, May 4, 2024 Yaupon Loop Trail, College Station, Brazos County, Texas, United States
Section of reddish-brown bitter bolete mushroom (Tylopilus rubrobrunneus) in Lick Creek Park. College Station, Texas, May 4, 2024 Yaupon Loop Trail, College Station, Brazos County, Texas, United States
Spores of reddish-brown bitter bolete mushroom (Tylopilus rubrobrunneus) collected in Lick Creek Park. College Station, Texas, May 4, 2024
Bitter bolete mushrooms Tylopilus rubrobrunneus on Road FS 231 near Pole Creek of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, September 26, 2024 Forest Service Rd 231, Montgomery County, Texas, United States
Section of bitter bolete mushrooms Tylopilus rubrobrunneus on Road FS 231 near Pole Creek of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, September 26, 2024 Forest Service Rd 231, Montgomery County, Texas, United States
Spores (in KOH) of bitter bolete mushrooms Tylopilus rubrobrunneus collected from Sam Houston National Forest north from Montgomery. Texas, September 26, 2024