Synonyms: Antrodia setulosa, Dichomitus setulosus, Elmerina setulosa, Grammothele setulosa, Poria setulosa, Poria subserpens, Trametes subserpens, Tyromyces subserpens.
Megasporoporia setulosa is a crust-like fungus that grows on dead wood, characterized by its effused-reflexed to pileate basidiocarps, with a smooth to tuberculate pore surface and 4-6 spores per pore. In East and Central Texas, it has been found on various hardwood substrates, including oak and elm, typically in shaded, humid environments. The fungus is relatively small, ranging from 2-10 cm in diameter, with a cream to buff-colored pore surface and white to pale grayish-brown upper surface.
Texture of a resupinate polypore mushroom Megasporoporia setulosa (Dichomitus setulosus) or may be Datronia mollis on a fallen branch on Lone Star Hiking Trail in Sam Houston National Forest, near Huntsville. Texas, March 10, 2018
Porous mushroom Megasporoporia setulosa (Dichomitus setulosus) or may be Datronia mollis on a fallen branch on Lone Star Hiking Trail in Sam Houston National Forest, near Huntsville. Texas, March 10, 2018
Large pores of a tinder mushroom Megasporoporia setulosa (Dichomitus setulosus) or may be Datronia mollis on a fallen branch on Lone Star Hiking Trail in Sam Houston National Forest, near Huntsville. Texas, March 10, 2018
Texture of a porous mushroom Megasporoporia setulosa (Dichomitus setulosus) or may be Datronia mollis on a fallen branch on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, January 25, 2020
Resupinate polypore mushroom Megasporoporia setulosa (Dichomitus setulosus) or may be Datronia mollis on a fallen branch on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, January 25, 2020
Close-up of crust mushroom Megasporoporia setulosa (Dichomitus setulosus) or may be Datronia mollis on Hoots Hollow Trail in Brazos Bend State Park. Needville, Texas, February 15, 2020
Crust mushroom Megasporoporia setulosa (Dichomitus setulosus) or may be Datronia mollis on a fallen limb on Hoots Hollow Trail in Brazos Bend State Park. Needville, Texas, February 15, 2020
Crust mushroom Megasporoporia setulosa (Dichomitus setulosus) or may be Datronia mollis on a fallen twig on Kiwanis Nature Trail. College Station, Texas, March 25, 2020
Resupinate polypore mushroom Megasporoporia setulosa (Dichomitus setulosus) or may be Datronia mollis on Kiwanis Nature Trail. College Station, Texas, March 25, 2020
Resupinate polypore mushroom Megasporoporia setulosa on a fallen light-weight elm branch on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, January 31, 2021
Texture of resupinate polypore mushroom Megasporoporia setulosa on a fallen light-weight elm branch on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, January 31, 2021
Thin layer of resupinate polypore mushroom Megasporoporia setulosa on a fallen light-weight elm branch on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, January 31, 2021
Fresh resupinate polypore mushroom Megasporoporia setulosa (Dichomitus setulosus) on a fallen elm branch on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, January 31, 2021
Margin of resupinate polypore mushroom Megasporoporia setulosa (Dichomitus setulosus) on a fallen elm branch on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, January 31, 2021
Resupinate polypore mushroom Megasporoporia setulosa on a fallen hardwood branch on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, October 30, 2021
Patches of resupinate polypore mushroom Megasporoporia setulosa on a fallen hardwood branch on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, October 30, 2021
Close-up of resupinate polypore mushroom Megasporoporia setulosa on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, October 30, 2021
Texture of resupinate polypore mushroom Megasporoporia setulosa on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, October 30, 2021
Pattern of resupinate polypore mushroom Megasporoporia setulosa on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, October 30, 2021
Old and new growth of resupinate polypore mushroom Megasporoporia setulosa on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, October 30, 2021
Margin of resupinate polypore mushroom Megasporoporia setulosa on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, October 30, 2021
Texture of pores of resupinate polypore mushroom Megasporoporia setulosa(?) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, October 30, 2021
Resupinate polypore mushroom Megasporoporia setulosa on a fallen tree branch in area of Winters Bayou in Sam Houston National Forest east from Waverly. Texas, May 28, 2022
Close-up of resupinate polypore mushroom Megasporoporia setulosa on a fallen tree branch in area of Winters Bayou in Sam Houston National Forest east from Waverly. Texas, May 28, 2022
Details of resupinate polypore mushroom Megasporoporia setulosa on a fallen tree branch in area of Winters Bayou in Sam Houston National Forest east from Waverly. Texas, May 28, 2022
Texture of resupinate polypore mushroom Megasporoporia setulosa on a fallen tree branch in area of Winters Bayou in Sam Houston National Forest east from Waverly. Texas, May 28, 2022
Resupinate polypore mushroom Megasporoporia setulosa on fallen tree branches on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, May 29, 2022
Resupinate polypore mushroom Megasporoporia setulosa on fallen thin trees on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, May 29, 2022
Close-up of resupinate polypore mushroom Megasporoporia setulosa on a fallen tree branch on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, May 29, 2022
Spores of resupinate polypore mushroom Megasporoporia setulosa at low magnification collected in Sam Houston National Forest a day before. Texas, May 29, 2022
Spores of resupinate polypore mushroom Megasporoporia setulosa collected in Sam Houston National Forest a day before. Texas, May 29, 2022
Spores of resupinate polypore mushroom Megasporoporia setulosa under a microscope, collected in Sam Houston National Forest a day before. Texas, May 29, 2022
Spores (under pressure) of a polypore mushroom Megasporoporia setulosa collected a day before on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, May 30, 2022
Spores of a polypore mushroom Megasporoporia setulosa under a microscope, collected a day before on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, May 30, 2022
Resupinate polypore mushroom Megasporoporia setulosa on an oak twig on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, February 1, 2024
Resupinate polypore mushroom Megasporoporia setulosa with moss on an oak twig on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, February 1, 2024
Resupinate polypore mushroom Megasporoporia setulosa growing over moss on an oak twig on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, February 1, 2024
Texture of resupinate polypore mushroom Megasporoporia setulosa on an oak twig on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, February 1, 2024
Close-up of resupinate polypore mushroom Megasporoporia setulosa on an oak twig on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, February 1, 2024
Pore surface of resupinate polypore mushroom Megasporoporia setulosa on an oak twig on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, February 1, 2024
Spores of resupinate polypore mushroom Megasporoporia setulosa collected 2 days before on Caney Creek Trail in Sam Houston National Forest north from Montgomery. Texas, February 3, 2024The observations document the presence of the resupinate polypore mushroom Megasporoporia setulosa in Sam Houston National Forest, Texas, over several years (2022-2024). The fungus was found growing on various tree branches, including oak twigs, and often co-occurred with moss. Observations were made at different locations within the forest, including Caney Creek Trail and Winters Bayou. Close-up photographs and microscopic examinations of spores were taken to confirm identification. The observations highlight the persistence and widespread presence of Megasporoporia setulosa in the forest ecosystem. The data provides valuable information on the distribution, habitat, and morphology of this species, contributing to a better understanding of its ecology and role in the forest environment. Overall, the observations demonstrate the fungus's adaptability and ability to thrive in various environments within the forest.
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