 Underside of a bitter bolete mushroom Tylopilus williamsii on Richards Loop Trail in Sam Houston National Forest. Texas, October 13, 2021
 Cross section of a bitter bolete mushroom Tylopilus williamsii on Richards Loop Trail in Sam Houston National Forest. Texas, October 13, 2021
 Bitter bolete mushroom (Tylopilus) on Forest Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, August 28, 2021
 Underside of bitter bolete mushroom (Tylopilus) on Forest Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, August 28, 2021
 Texture of pores of bitter bolete mushroom (Tylopilus) on Forest Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, August 28, 2021
 Cross section of bitter bolete mushroom (Tylopilus) on Forest Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, August 28, 2021
 Pore surface of bitter bolete mushroom (Tylopilus) on Forest Road 203 on Richards Loop Trail in Sam Houston National Forest. Texas, August 28, 2021
 Bitter bolete mushrooms Tylopilus williamsii in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, July 14, 2018
 Brown bolete mushroom Tylopilus (taste not bitter, may be sweet) on Richards Loop Trail in Sam Houston National Forest. Texas, September 21, 2022
 Bitter bolete (Tylopilus) mushrooms on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, September 23, 2018
 Bitter bolete mushroom Tylopilus williamsii(?) together with burnt orange bolete (Gyroporus ballouii) and golden-pored boletes (Aureoboletus auriporus) in Lick Creek Park. College Station, Texas, August 8, 2020
 Bitter bolete mushroom Tylopilus plumbeoviolaceus on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, October 12, 2019
 Bitter bolete mushrooms Tylopilus williamsii in Lake Bryan Park. Bryan, Texas, October 10, 2018
 Pores of a brown, not bitter Tylopilus mushroom on Richards Loop Trail in Sam Houston National Forest. Texas, September 7, 2022
 Underside of a brown, not bitter Tylopilus mushroom on Richards Loop Trail in Sam Houston National Forest. Texas, September 7, 2022
 Large pores of a brown, not bitter Tylopilus mushroom on Richards Loop Trail in Sam Houston National Forest. Texas, September 7, 2022
 Cross section of a brown, not bitter Tylopilus mushroom on Richards Loop Trail in Sam Houston National Forest. Texas, September 7, 2022
 Underside of a bitter bolete mushroom (Tylopilus) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, July 10, 2021
 Bitter bolete mushroom Tylopilus plumbeoviolaceus on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest, near Huntsville. Texas, July 13, 2018
 Cross section of a bitter bolete mushroom (Tylopilus) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, July 10, 2021
 Bolete mushrooms Tylopilus williamsii on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, September 15, 2018
 Spores of a brown, not bitter Tylopilus mushroom (spore print light brown-violet) collected on Richards Loop Trail in Sam Houston National Forest. Texas, September 7, 2022
 Dissected bolete mushrooms Tylopilus williamsii on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, June 30, 2018
 Pair of bolete mushrooms Tylopilus williamsii on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, June 30, 2018
 Caps of bolete mushrooms Tylopilus on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, October 3, 2020
 Underside of bolete mushrooms Tylopilus on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, October 3, 2020
 Cap of a brown bolete mushroom Tylopilus appalachiensis(?) on Road FS 203 near Richards Loop Trail in Sam Houston National Forest. Texas, May 1, 2024
 Cross section of bolete mushrooms Tylopilus on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, October 3, 2020
 Pores of a brown bolete mushroom Tylopilus appalachiensis(?) on Road FS 203 near Richards Loop Trail in Sam Houston National Forest. Texas, May 1, 2024
 Cap of tobacco stain bolete mushroom (Tylopilus atronicotianus(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, September 25, 2020
 Brown, not bitter Tylopilus mushrooms with large pores on Richards Loop Trail in Sam Houston National Forest. Texas, September 7, 2022
 Bolete mushrooms Tylopilus williamsii at the base of a pine tree on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, June 30, 2018
 Underside of tobacco stain bolete mushroom (Tylopilus atronicotianus(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, September 25, 2020
 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
 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
 Cap of a bolete mushroom Retiboletus griseus on Richards Loop Trail in Sam Houston National Forest. Texas, October 13, 2021
 Bolete mushroom Pulveroboletus curtisii on Richards Loop Trail in Sam Houston National Forest. Texas, October 13, 2021
 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
 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
 Cross section of tobacco stain bolete mushroom (Tylopilus atronicotianus(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, September 25, 2020
 Spores of brown bolete mushroom Tylopilus (taste not bitter), collected in Sam Houston National Forest. Texas, September 21, 2022
 Underside of bolete mushroom Leccinellum griseum(?) on Richards Loop Trail in Sam Houston National Forest. Texas, October 13, 2021
 Pores of bolete mushroom Pulveroboletus curtisii on Richards Loop Trail in Sam Houston National Forest. Texas, October 13, 2021
 Underside of a bolete mushroom Retiboletus griseus on Richards Loop Trail in Sam Houston National Forest. Texas, October 13, 2021
 Dissected cap of bolete mushroom Pulveroboletus curtisii on Richards Loop Trail in Sam Houston National Forest. Texas, October 13, 2021
 Some brown bitter bolete (Tylopilus) mushrooms on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest, near Huntsville. Texas, July 15, 2018
 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
 Large angular pores of tobacco stain bolete mushroom (Tylopilus atronicotianus(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, September 25, 2020
 Some brown bitter bolete mushrooms (Tylopilus) on floodplain on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest, near Huntsville. Texas, July 15, 2018
 Cross section of a bolete mushroom Retiboletus griseus on Richards Loop Trail in Sam Houston National Forest. Texas, October 13, 2021
 Pale violet bitter bolete mushrooms (Tylopilus) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, July 10, 2021
 Bitter bolete mushroom Porphyrellus sordidus (Tylopilus sordidus) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, September 22, 2018
 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
 Bolete mushroom Tylopilus rhodoconius on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, November 7, 2021
 Cap of a dark grey bolete mushroom Tylopilus griseocarneus on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, July 25, 2021
 Underside of a dark bolete mushroom Tylopilus griseocarneus on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, July 25, 2021
 Cross section of a bolete mushroom Tylopilus griseocarneus on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, July 25, 2021
 Bitter bolete mushroom (Tylopilus) in Hensel Park. College Station, Texas, October 19, 2018
 Violet-gray bolete mushrooms Tylopilus plumbeoviolaceus on Richards Loop Trail in Sam Houston National Forest. Texas, September 7, 2022
 Spores of brown bolete mushrooms Tylopilus appalachiensis(?) collected on Richards Loop Trail in Sam Houston National Forest. Texas, May 1, 2024
 Underside of brown bolete mushrooms Tylopilus appalachiensis(?) on Road FS 203 near Richards Loop Trail in Sam Houston National Forest. Texas, May 1, 2024
 Bitter bolete mushrooms Tylopilus plumbeoviolaceus in a pine forest on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, June 30, 2018
 Dissected bitter bolete mushroom (Tylopilus) in Hensel Park. College Station, Texas, October 19, 2018
 Underside of bitter bolete mushroom (Tylopilus) in Hensel Park. College Station, Texas, October 19, 2018
 Cross section of a bolete mushroom turning blue on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, October 23, 2021
 Cap of bolete mushroom with yellow pores and blue tinting on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, October 23, 2021
 Cap of golden-pored bolete mushroom (Aureoboletus auriporus) on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, October 23, 2021
 Some bitter bolete mushroom (Tylopilus) in Lick Creek Park. College Station, Texas, July 5, 2021
 Underside of violet-gray bolete mushrooms Tylopilus plumbeoviolaceus on Richards Loop Trail in Sam Houston National Forest. Texas, September 7, 2022
 Cross section of brown bolete mushrooms Tylopilus appalachiensis(?) on Road FS 203 near Richards Loop Trail in Sam Houston National Forest. Texas, May 1, 2024
 Underside of golden-pored bolete mushroom (Aureoboletus auriporus) on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, October 23, 2021
 Underside of a bolete mushroom with yellow pores turning blue on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, October 23, 2021
 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
 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
 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
 Underside of some bitter bolete mushroom (Tylopilus) in Lick Creek Park. College Station, Texas, July 5, 2021
 Dissected bitter bolete mushroom (Tylopilus) in Lick Creek Park. College Station, Texas, July 5, 2021
 Bolete mushrooms Suillus cothurnatus on Richards Loop Trail in Sam Houston National Forest. Texas, October 13, 2021
 Bolete mushrooms Suillus decipiens on Richards Loop Trail in Sam Houston National Forest. Texas, October 13, 2021
 Side view of brown bolete mushrooms Tylopilus appalachiensis(?) in the middle of Road FS 203 near Richards Loop Trail in Sam Houston National Forest. Texas, May 1, 2024
 Side view of violet-gray bolete mushrooms Tylopilus plumbeoviolaceus on Richards Loop Trail in Sam Houston National Forest. Texas, September 7, 2022
 Cross section of golden-pored bolete mushroom (Aureoboletus auriporus) on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, October 23, 2021
 Pores of bolete mushroom Porphyrellus sordidus (Tylopilus sordidus) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, July 4, 2021
 Cross section of a bitter bolete mushroom (Tylopilus) in Lick Creek Park. College Station, Texas, July 5, 2021
 Pale violet bitter bolete mushroom (Tylopilus violatinctus) in Hensel Park. College Station, Texas, June 3, 2021
 Spores of bolete mushrooms Tylopilus plumbeoviolaceus (spore print violet) collected on Richards Loop Trail in Sam Houston National Forest. Texas, September 7, 2022
 Cross section of bolete mushroom Porphyrellus sordidus (Tylopilus sordidus) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, July 4, 2021
 Cracked cap of bolete mushroom Porphyrellus sordidus (Tylopilus sordidus) on floodplain on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, July 4, 2021
 Spores (in KOH) of bitter bolete mushrooms Tylopilus rubrobrunneus collected from Sam Houston National Forest north from Montgomery. Texas, September 26, 2024
 Reddish-brown bitter bolete mushroom (Tylopilus rubrobrunneus) in Lick Creek Park. College Station, Texas, July 5, 2021
 Pore surface of some brown bitter bolete mushroom (Tylopilus) 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
 Pale violet bitter bolete mushroom (Tylopilus violatinctus) in Lick Creek Park. College Station, Texas, July 15, 2021
 Destroying angel mushrooms (Amanita bisporigera) together with a bolete on Richards Loop Trail in Sam Houston National Forest. Texas, October 13, 2021
 Underside of wood bolete mushrooms (Buchwaldoboletus lignicola) on Richards Loop Trail in Sam Houston National Forest. Texas, October 13, 2021
 Underside of bolete mushroom Suillus cothurnatus on Richards Loop Trail in Sam Houston National Forest. Texas, December 9, 2021
 Cross section of pale violet bitter bolete mushroom (Tylopilus violatinctus) in Hensel Park. College Station, Texas, June 3, 2021
 Underside of reddish-brown bitter bolete mushroom (Tylopilus rubrobrunneus) in Lick Creek Park. College Station, Texas, July 5, 2021
 Wood bolete mushrooms (Buchwaldoboletus lignicola) near a burned pine on Richards Loop Trail in Sam Houston National Forest. Texas, October 13, 2021
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