 Cap of a bitter bolete mushroom Tylopilus williamsii on Richards Loop Trail in Sam Houston National Forest. Texas, October 13, 2021
 Underside of a bitter bolete mushroom Tylopilus williamsii on Richards Loop Trail in Sam Houston National Forest. Texas, October 13, 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
 Cross section of a brown, not bitter Tylopilus mushroom on Richards Loop Trail in Sam Houston National Forest. Texas, September 7, 2022
 Cross section 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) 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
 Pore surface 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 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
 Cross section of bolete mushrooms Tylopilus on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, October 3, 2020
 Cross section of tobacco stain bolete mushroom (Tylopilus atronicotianus(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, September 25, 2020
 Cross section of a bolete mushroom Retiboletus griseus on Richards Loop Trail in Sam Houston National Forest. Texas, October 13, 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
 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
 Cross section of a bitter bolete mushroom (Tylopilus) in Lick Creek Park. College Station, Texas, July 5, 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
 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
 Cross section of pale violet bitter bolete mushroom (Tylopilus violatinctus) in Hensel Park. College Station, Texas, June 3, 2021
 Cross section of wood bolete mushrooms (Buchwaldoboletus lignicola) on Richards Loop Trail in Sam Houston National Forest. Texas, October 13, 2021
 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
 Cross section of reddish-brown bitter bolete mushroom (Tylopilus rubrobrunneus) in Lick Creek Park. College Station, Texas, July 5, 2021
 Bitter bolete (Tylopilus) mushrooms on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, September 23, 2018
 Underside and cross section of Tylopilus mushrooms on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, October 3, 2020
 Cross section of young reddish-brown bitter bolete mushroom (Tylopilus rubrobrunneus(?)) in Lick Creek Park. College Station, Texas, July 13, 2021
 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
 Bolete mushrooms Tylopilus williamsii on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, September 15, 2018
 Cross section of bitter violet-grey bolete mushrooms Tylopilus plumbeoviolaceus in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, September 12, 2020
 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
 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
 Bitter bolete mushroom Tylopilus plumbeoviolaceus on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, October 12, 2019
 Cross section of a golden-pored bolete mushroom (Aureoboletus auriporus) on North Wilderness Loop Trail in Sam Houston National Forest near Richards. Texas, October 8, 2020
 Bitter bolete mushrooms Tylopilus williamsii in Lake Bryan Park. Bryan, Texas, October 10, 2018
 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
 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 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 white Amanita sect. Lepidella mushroom on Richards Loop Trail in Sam Houston National Forest. Texas, October 13, 2021
 Cross section of a large mature brown bolete mushroom Boletus oliveisporus(?) on Four Notch Loop Trail of Sam Houston National Forest near Huntsville. Texas, October 24, 2021
 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
 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
 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
 Blackening 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, August 1, 2020
 Large pores of a brown, not bitter Tylopilus mushroom on Richards Loop Trail in Sam Houston National Forest. Texas, September 7, 2022
 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
 Cross section of a young bolete mushroom Tylopilus griseocarneus with Hypomyces on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, September 14, 2022
 Close-up of blackening 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, August 1, 2020
 Cross section of bolete mushroom Buchwaldoboletus hemichrysus on Richards Loop Trail in Sam Houston National Forest. Texas, May 20, 2020
 Cross section of bolete mushrooms Boletus patrioticus(?) on Richards Loop Trail in Sam Houston National Forest. Texas, August 28, 2021
 Cross section of bolete mushrooms Suillus cothurnatus on Richards Loop Trail in Sam Houston National Forest. Texas, December 9, 2021
 Cross section of bolete mushroom Boletus patrioticus on Richards Loop Trail in Sam Houston National Forest. Texas, July 28, 2020
 Cross section of a bolete mushroom Buchwaldoboletus hemichrysus 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
 Pores and cross section of bolete mushrooms Boletus patrioticus(?) on Richards Loop Trail in Sam Houston National Forest. Texas, August 28, 2021
 Close-up of cross section of bolete mushrooms Boletus patrioticus(?) on Richards Loop Trail in Sam Houston National Forest. Texas, August 28, 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
 Ash tree bolete mushroom (Boletinellus merulioides) with cross section on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, October 9, 2021
 Cross section of bolete mushrooms Buchwaldoboletus hemichrysus on North Wilderness Loop Trail in Sam Houston National Forest near Richards. Texas, October 8, 2020
 Bolete mushrooms Pulveroboletus curtisii with cross section on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, October 3, 2020
 Cross section of pineapple bolete mushroom (Boletellus ananas) on Richards Loop Trail in Sam Houston National Forest. Texas, September 25, 2020
 Cross section of chestnut bolete mushroom (Gyroporus smithii) on Road FS 203 near Richards Loop Trail in Sam Houston National Forest. Texas, May 1, 2024
 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 and pink cap of pineapple bolete mushroom (Boletellus ananas) on Richards Loop Trail in Sam Houston National Forest. Texas, September 25, 2020
 Cross section of some olive brown bolete mushroom on Service Road FS 203 on Richards Loop Trail in Sam Houston National Forest. Texas, November 5, 2023
 Cross section of some yellow Amanita mushroom on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, October 23, 2021
 Cross section and yellow pores of pineapple bolete mushroom (Boletellus ananas) on Richards Loop Trail in Sam Houston National Forest. Texas, September 25, 2020
 Cross section of a large bolete mushroom with yellow pores and pink stem on Richards Loop Trail in Sam Houston National Forest. Texas, September 7, 2022
 Cross section of a bolete mushroom both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Richards Loop Trail in Sam Houston National Forest near Montgomery. Texas, September 6, 2024
 Cross section brittlegill mushroom Russula flavida on an old forest road on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, October 23, 2021
 Cross section of blushing rosette mushroom (Abortiporus biennis) on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, October 23, 2021
 Patriotic bolete mushrooms (Boletus patrioticus) or may be Pulchroboletus sclerotiorum with a cross section on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, October 3, 2020
 Blue cross section of a bolete mushroom Suillellus subluridus or may be Neoboletus on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, November 3, 2019
 Cross section of bolete mushroom Buchwaldoboletus hemichrysus on Sand Branch Loop Trail in Sam Houston National Forest near Montgomery. Texas, October 29, 2023
 Underside and cross section of patriotic bolete mushrooms (Boletus patrioticus) or may be Pulchroboletus sclerotiorum on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, October 3, 2020
 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
 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
 Cross section of bolete mushrooms Leccinum rubropunctum with dark caps near the trailhead on Four Notch Loop Trail of Sam Houston National Forest near Huntsville. Texas, October 24, 2021
 Cross section of destroying angel mushrooms (Amanita bisporigera) on Richards Loop Trail in Sam Houston National Forest. Texas, October 13, 2021
 Cross section turning blue of patriotic bolete mushrooms (Boletus patrioticus) or may be Pulchroboletus sclerotiorum on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, October 3, 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
 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
 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
 Cross section of dark grey bolete mushrooms Tylopilus griseocarneus on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest, near Huntsville. Texas, July 21, 2018
 Underside of bolete mushrooms Tylopilus on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, October 3, 2020
 Caps 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
 Side view with a cross section of bolete mushrooms Leccinum rubropunctum with dark caps on Four Notch Loop Trail of Sam Houston National Forest near Huntsville. Texas, October 24, 2021
 Cross section of white Amanita mushroom at Forest Service Road 203 near Richards Loop Trail in Sam Houston National Forest. Texas, December 9, 2021
 Cross section of puffball mushrooms Lycoperdon radicatum (Bovistella radicata) on Richards Loop Trail in Sam Houston National Forest. Texas, October 13, 2021
 Cap of tobacco stain bolete mushroom (Tylopilus atronicotianus(?)) on Richards Loop Trail in Sam Houston National Forest. Texas, September 25, 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
 Brown, not bitter Tylopilus mushrooms with large pores on Richards Loop Trail in Sam Houston National Forest. Texas, September 7, 2022
 Cross section of some young Amanita mushroom with a brown cap on Sand Branch Loop Trail in Sam Houston National Forest near Richards. Texas, October 3, 2020
 Blackening cross section (after two minutes) of dark grey bolete mushrooms Tylopilus griseocarneus on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest, near Huntsville. Texas, July 21, 2018
 Cross section of milky false truffle mushroom Zelleromyces cinnabarinus on Richards Loop Trail in Sam Houston National Forest. Texas, December 28, 2021
 Cross section of silver-blue milkcap mushroom (Lactarius paradoxus) on Richards Loop Trail in Sam Houston National Forest. Texas, November 17, 2021
 Cross section of brown webcap (Cortinarius) mushroom on pine needles on Richards Loop Trail in Sam Houston National Forest. Texas, January 9, 2021
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