Synonyms: Boletus fasciatus, Elfvingia fasciata, Elfvingiella fasciata, Elfvingiella marmorata, Fomes marmoratus, Fomes sclerodermeus, Fomes subfomentarius, Myriadoporus dussii, Polyporus fasciatus, Polyporus marmoratus, Polyporus sclerodermeus, Scindalma fasciatum, Scindalma marmoratum, Scindalma sclerodermeum, Ungulina sclerodermea.
Common name: Southern Clam Shell.
Extract from Wikipedia article: Fomes fasciatus is species of fungus in the family Polyporaceae. It a plant pathogen that causes white rot of heartwood of hardwoods. Originally described in 1788 by Swedish botanist Olof Swartz from specimens collected in Jamaica, it is also found in North America.
Fomes fasciatus is a perennial, bracket-like fungus that grows on dead or living trees, typically oak and elm. In East and Central Texas, it is commonly found on cedar elms, American elms, and live oaks. The fungus produces semicircular to fan-shaped caps, 2-10 cm wide, with a grayish-brown to dark brown upper surface and a light brown to tan lower surface. The pores are small and angular, and the spores are white to light yellow. Fomes fasciatus is a decay fungus that causes heart rot in trees, and its presence can indicate significant structural weakness. It fruits year-round, but is most common from spring to fall.
Bracket mushrooms Fomes fasciatus on a tree in Wolf Pen Creek Park. College Station, Texas, February 18, 2018
Wolf Pen Creek Trail, College Station, TX 77840, USA
Fomes fasciatus mushrooms in Wolf Pen Creek Park. College Station, Texas, February 18, 2018Wolf Pen Creek Trail, College Station, TX 77840, USA
Hoof mushrooms Fomes fasciatus on a fallen tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, April 28, 2018Lone Star Hiking Trail, Coldspring, TX 77331, USA
Hoof polypore mushrooms Fomes fasciatus on a fallen oak in Lick Creek Park. College Station, Texas, June 4, 2018Raccoon Run, College Station, TX 77845, USA
Bracket polypore mushrooms Fomes fasciatus on a fallen oak in Lick Creek Park. College Station, Texas, June 4, 2018Raccoon Run, College Station, TX 77845, USA
Underside of a polypore mushroom Fomes fasciatus on a fallen oak in Lick Creek Park. College Station, Texas, June 4, 2018Raccoon Run, College Station, TX 77845, USA
Pores of a bracket mushroom Fomes fasciatus in Lick Creek Park. College Station, Texas, June 4, 2018Raccoon Run, College Station, TX 77845, USA
Bracket polypore mushrooms Fomes fasciatus in Lick Creek Park. College Station, Texas, June 6, 2019Raccoon Run, College Station, TX 77845, USA
Pore surface of a bracket polypore mushroom Fomes fasciatus in Lick Creek Park. College Station, Texas, June 6, 2019Raccoon Run, College Station, TX 77845, USA
Brown cap of a bracket polypore mushroom Fomes fasciatus in Lick Creek Park. College Station, Texas, June 6, 2019Raccoon Run, College Station, TX 77845, USA
Hoof polypore mushrooms Fomes fasciatus in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, June 26, 2019Lone Star Hiking Trail, Coldspring, TX 77331, USA
Hoof polypore mushrooms Fomes fasciatus on a small oak(?) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, June 26, 2019Lone Star Hiking Trail, Coldspring, TX 77331, USA
Hoof polypore mushrooms Fomes fasciatus in area of floodplain in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, June 26, 2019Lone Star Hiking Trail, Coldspring, TX 77331, USA
Hoof mushrooms Fomes fasciatus on a tree near the creek in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, October 20, 2019Lone Star Hiking Trail, Coldspring, TX 77331, USA
Bracket mushrooms Fomes fasciatus on a fallen live oak on Hoots Hollow Trail in Brazos Bend State Park. Needville, Texas, February 15, 2020Hoot's Hollow Trail, Fort Bend County, Texas, United States
Pore surface of a bracket mushroom Fomes fasciatus on a fallen live oak on Hoots Hollow Trail in Brazos Bend State Park. Needville, Texas, February 15, 2020Hoot's Hollow Trail, Fort Bend County, Texas, United States
Detached bracket mushrooms Fomes fasciatus on Hoots Hollow Trail in Brazos Bend State Park. Needville, Texas, February 15, 2020Hoot's Hollow Trail, Fort Bend County, Texas, United States
Mature southern clam shell mushrooms (Fomes fasciatus) on a dry tree in Wolf Pen Creek Park. College Station, Texas, June 24, 20202301 Eastmark Dr, College Station, TX 77840, USA
Southern Clam Shell polypore mushroom Fomes fasciatus on a log on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, August 22, 2020Lone Star Hiking Trail, Cleveland, TX 77328, USA
Pore surface of Southern Clam Shell mushroom Fomes fasciatus on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, August 22, 2020Lone Star Hiking Trail, Cleveland, TX 77328, USA
Cross section of Southern Clam Shell polypore mushroom Fomes fasciatus on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, August 22, 2020Lone Star Hiking Trail, Cleveland, TX 77328, USA
Southern clam shell polypore mushroom (Fomes fasciatus) changing direction of growth on a fallen tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, September 12, 2020Lone Star Hiking Trail, Coldspring, TX 77331, USA
Caps of southern clam shell polypore mushroom (Fomes fasciatus) on a fallen tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, September 12, 2020Lone Star Hiking Trail, Coldspring, TX 77331, USA
Fresh caps of southern clam shell polypore mushroom (Fomes fasciatus) on a fallen tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, September 12, 2020Lone Star Hiking Trail, Coldspring, TX 77331, USA
Southern clam shell mushrooms (Fomes fasciatus) in Lick Creek Park. College Station, Texas, September 20, 2020Raccoon Run, College Station, TX 77845, USA
Caps of southern clam shell mushrooms (Fomes fasciatus) in Lick Creek Park. College Station, Texas, September 20, 2020Raccoon Run, College Station, TX 77845, USA
Southern clam shell polypore mushroom (Fomes fasciatus) on a fallen tree in Lick Creek Park. College Station, Texas, October 27, 2020Raccoon Run, College Station, TX 77845, USA
Southern clam shell polypore mushrooms (Fomes fasciatus) on a log in Lick Creek Park. College Station, Texas, October 27, 2020Raccoon Run, College Station, TX 77845, USA
Caps of southern clam shell polypore mushrooms (Fomes fasciatus) on a log in Lick Creek Park. College Station, Texas, October 27, 2020Raccoon Run, College Station, TX 77845, USA
Southern Clam Shell mushrooms (Fomes fasciatus) on a dry oak in Lick Creek Park. College Station, Texas, November 4, 2020Raccoon Run, College Station, TX 77845, USA
Underside of Southern Clam Shell mushrooms (Fomes fasciatus) in Lick Creek Park. College Station, Texas, November 4, 2020Raccoon Run, College Station, TX 77845, USA
Southern clam shell mushroom (Fomes fasciatus) on a dry oak tree in Huntsville State Park. Texas, December 18, 2020State Park Rd 40, New Waverly, TX 77358, USA
Southern Clam Shell mushrooms (Fomes fasciatus) on a mossy fallen oak on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, August 20, 2021Lone Star Hiking Trail, Montgomery, TX 77356, USA
Southern clam shell mushrooms (Fomes fasciatus) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, September 11, 2021Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Zoned cap of southern clam shell mushroom (Fomes fasciatus) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, September 11, 2021Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Underside of southern clam shell mushroom (Fomes fasciatus) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, September 11, 2021Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Caps of southern clam shell mushroom (Fomes fasciatus) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, September 11, 2021Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Cross section of southern clam shell mushroom (Fomes fasciatus) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, September 11, 2021Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Southern clam shell mushroom (Fomes fasciatus) on a dry oak tree in Lick Creek Park. College Station, Texas, October 18, 2021Racoon Run Trail, College Station, Brazos County, Texas, United States
Close-up of southern clam shell mushroom (Fomes fasciatus) in Lick Creek Park. College Station, Texas, June 3, 2022Racoon Run Trail, College Station, Brazos County, Texas, United States
Pore surface of southern clam shell mushroom (Fomes fasciatus) in Lick Creek Park. College Station, Texas, June 3, 2022Racoon Run Trail, College Station, Brazos County, Texas, United States
Underside of southern clam shell mushroom (Fomes fasciatus) in Lick Creek Park. College Station, Texas, June 3, 2022Racoon Run Trail, College Station, Brazos County, Texas, United States
Southern clam shell mushroom (Fomes fasciatus) in Lick Creek Park. College Station, Texas, June 3, 2022Racoon Run Trail, College Station, Brazos County, Texas, United States
Spores (1 spore) of southern clam shell mushroom (Fomes fasciatus) collected in Lick Creek Park. College Station, Texas, June 3, 2022
Spores of bracket mushroom Fomes fasciatus collected two days before in Lick Creek Park. College Station, Texas, June 5, 2022
Southern clam shell polypore mushrooms (Fomes fasciatus) on a fallen tree in wet area on Kirby Nature Trail in Big Thicket National Preserve. Warren, Texas, June 12, 2022Kirby Nature Trail, Hardin County, Texas, United States
Caps of southern clam shell polypore mushrooms (Fomes fasciatus) on a fallen tree in wet area on Kirby Nature Trail in Big Thicket National Preserve. Warren, Texas, June 12, 2022Kirby Nature Trail, Hardin County, Texas, United States
Cross section and pore surface of southern clam shell polypore mushrooms (Fomes fasciatus) on a fallen tree in wet area on Kirby Nature Trail in Big Thicket National Preserve. Warren, Texas, June 12, 2022Kirby Nature Trail, Hardin County, Texas, United States
Southern clam shell mushrooms (Fomes fasciatus) in Lick Creek Park. College Station, Texas, October 3, 2022Racoon Run Trail, College Station, Brazos County, Texas, United States
Pore surface of a bracket polypore mushroom Fomes fasciatus in Lick Creek Park. College Station, Texas, October 3, 2022Racoon Run Trail, College Station, Brazos County, Texas, United States
Reddish toad on a cap of polypore mushroom Fomes fasciatus on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, February 23, 2023Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Reddish toad with southern clam shell mushroom (Fomes fasciatus) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, February 23, 2023Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United StatesThe observations document the presence of Southern Clam Shell mushrooms (Fomes fasciatus) in various locations across Texas, primarily in national forests and parks. The mushroom was found growing on dry oak trees, fallen logs, and other woody substrates. Observations were made over several years, from 2020 to 2023, with frequent sightings in Lick Creek Park and Sam Houston National Forest. The mushrooms were noted to have zoned caps, white pores, and a distinctive shape. Some observations included close-ups of the mushroom's pore surface, cross-sections, and spores. Additionally, an encounter with a reddish toad on a cap of the mushroom was recorded. Overall, the observations suggest that Fomes fasciatus is a common species in Texas, particularly in wooded areas with oak trees.
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