Synonyms: Bjerkandera fragilis, Bjerkandera weinmannii, Daedalea sistotremoides, Daedalea weinmannii, Inodermus weinmannii, Leptoporus fragilis, Leptoporus trabeus, Oligoporus fragilis, Polyporus cavinae, Polyporus fragilis, Polyporus kavinae, Polyporus keithii, Polyporus orbicularis, Polyporus sensibilis, Polyporus vermiculus, Polyporus weinmannii, Polystictus fragilis, Postia fragilis, Postia weinmannii, Spongipellis fragilis, Spongipellis sensibilis, Spongipellis weinmannii, Spongiporus fragilis, Tyromyces fragilis.
Common name: brown-staining cheese polypore.
Fuscopostia fragilis is a species of fungus that belongs to the family Fomitopsidaceae. It is a bracket fungus that grows on deciduous trees, particularly oak and elm. In East and Central Texas, Fuscopostia fragilis has been found growing on living and dead trees, often in shaded areas with rich soil. The fungus produces annual brackets that are 2-6 cm wide, with a fragile and crumbly texture, and a brown to grayish-brown cap. Its pore surface is white to light yellow, and the spores are white, cylindrical, and 4-5 micrometers long.
Brown-staining cheese polypore mushrooms (Postia fragilis, Oligoporus fragilis, Fuscopostia fragilis) on a pine log on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, September 29, 2018
Lone Star Hiking Trail, Montgomery County, Texas, United States
Underside of brown-staining cheese polypore mushrooms (Postia fragilis, Oligoporus fragilis, Fuscopostia fragilis) on a pine log on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, September 29, 2018Lone Star Hiking Trail, Montgomery County, Texas, United States
Brown-staining cheese polypore mushrooms (Postia fragilis, Oligoporus fragilis, Fuscopostia fragilis) taken from a rotten pine on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, September 30, 2018Lone Star Hiking Trail, Montgomery, TX 77356, USA
Underside of brown-staining cheese polypore mushroom (Postia fragilis, Oligoporus fragilis, Fuscopostia fragilis) on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, September 30, 2018Lone Star Hiking Trail, Montgomery, TX 77356, USA
Prostrate form of brown-staining cheese polypore mushrooms (Postia fragilis, Oligoporus fragilis, Fuscopostia fragilis) in Huntsville State Park. Texas, October 27, 2018Huntsville State Park, 565 Park Road 40 west, Huntsville, TX 77340, USA
Brown-staining cheese polypore mushrooms (Postia fragilis, Oligoporus fragilis, Fuscopostia fragilis) on a fallen pine in Huntsville State Park. Texas, October 27, 2018Huntsville State Park, 565 Park Road 40 west, Huntsville, TX 77340, USA
Close up of brown-staining cheese polypore mushroom (Postia fragilis, Oligoporus fragilis, Fuscopostia fragilis) on Chinquapin Trail in Huntsville State Park. Texas, December 15, 2018Unnamed Road, New Waverly, TX 77358, USA
Brown-staining cheese polypore mushroom (Postia fragilis, Oligoporus fragilis, Fuscopostia fragilis) on a cut surface of a pine on Chinquapin Trail in Huntsville State Park. Texas, December 15, 2018Unnamed Road, New Waverly, TX 77358, USA
Slug eating brown-staining cheese polypore mushroom (Postia fragilis, Oligoporus fragilis, Fuscopostia fragilis) on Chinquapin Trail in Huntsville State Park. Texas, December 15, 2018Unnamed Road, New Waverly, TX 77358, USA
Brown-staining cheese polypore mushrooms (Postia fragilis, Oligoporus fragilis, Fuscopostia fragilis) on a fallen pine on Lone Star Hiking Trail south from Stubblefield Campground in Sam Houston National Forest. Montgomery, Texas, September 13, 2020Lone Star Hiking Trail, Montgomery, TX 77356, USA
Caps of brown-staining cheese polypore mushrooms (Postia fragilis, Oligoporus fragilis, Fuscopostia fragilis) on a fallen pine on Lone Star Hiking Trail south from Stubblefield Campground in Sam Houston National Forest. Montgomery, Texas, September 13, 2020Lone Star Hiking Trail, Montgomery, TX 77356, USA
Underside of brown-staining cheese polypore mushrooms (Postia fragilis, Oligoporus fragilis, Fuscopostia fragilis) on a fallen pine on Lone Star Hiking Trail south from Stubblefield Campground in Sam Houston National Forest. Montgomery, Texas, September 13, 2020Lone Star Hiking Trail, Montgomery, TX 77356, USA
Cap surface of brown-staining cheese polypore mushrooms (Postia fragilis, Oligoporus fragilis, Fuscopostia fragilis) on a fallen pine on Lone Star Hiking Trail south from Stubblefield Campground in Sam Houston National Forest. Montgomery, Texas, September 13, 2020Lone Star Hiking Trail, Montgomery, TX 77356, USA
Brown-staining cheese polypore mushrooms (Postia fragilis, Fuscopostia fragilis) on a barkless pine log on Little Lake Loop Trail in Sam Houston National Forest east from Trail Head No. 4, near Montgomery. Texas, November 29, 2020Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Brown-staining cheese polypore mushrooms (Postia fragilis, Oligoporus fragilis, Fuscopostia fragilis) on a fallen pine on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, June 11, 2021Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Brown-staining cheese polypore mushrooms (Postia fragilis, Oligoporus fragilis, Fuscopostia fragilis) on a pine log on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, June 11, 2021Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Brown-staining cheese polypore mushrooms (Postia fragilis, Oligoporus fragilis, Fuscopostia fragilis) on cut surface of a pine log on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, June 11, 2021Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Caps of brown-staining cheese polypore mushrooms (Postia fragilis, Oligoporus fragilis, Fuscopostia fragilis) on cut surface of a pine log on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, June 11, 2021Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Resupinate form of brown-staining cheese polypore mushroom (Fuscopostia fragilis) on a pine log with water drops on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, July 16, 2021Lone Star Hiking Trail, Montgomery, TX 77356, USA
Texture of resupinate form of brown-staining cheese polypore mushroom (Fuscopostia fragilis) on a pine log on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, July 16, 2021Lone Star Hiking Trail, Montgomery, TX 77356, USA
Close-up of guttation (water droplets) of resupinate form of brown-staining cheese polypore mushroom (Fuscopostia fragilis) on a pine log on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, July 16, 2021Lone Star Hiking Trail, Montgomery, TX 77356, USA
Guttation (exudation of water droplets) of resupinate form of brown-staining cheese polypore mushroom (Fuscopostia fragilis) on a pine log on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, July 16, 2021Lone Star Hiking Trail, Montgomery, TX 77356, USA
Brown-staining cheese polypore mushrooms (Fuscopostia fragilis) on a pine log on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, July 16, 2021Lone Star Hiking Trail, Montgomery, TX 77356, USA
Brown-staining cheese polypore mushrooms (Fuscopostia fragilis) on a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, December 28, 2021FS 203, Montgomery County, Texas, 77873, United States
Underside of brown-staining cheese polypore mushrooms (Fuscopostia fragilis) on a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, December 28, 2021FS 203, Montgomery County, Texas, 77873, United States
Pores of brown-staining cheese polypore mushrooms (Fuscopostia fragilis) on Richards Loop Trail in Sam Houston National Forest. Texas, December 28, 2021FS 203, Montgomery County, Texas, 77873, United States
Brown-staining cheese polypore mushroom (Fuscopostia fragilis) on underside of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, February 27, 2022Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Resupinate form of brown-staining cheese polypore mushroom (Fuscopostia fragilis) on underside of a pine log on Richards Loop Trail in Sam Houston National Forest. Texas, February 27, 2022Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Guttation (water droplets) on a resupinate form of brown-staining cheese polypore mushroom (Fuscopostia fragilis) on a pine log in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, April 30, 2023Lone Star Hiking Trail, San Jacinto County, Texas, United States
Testure of guttation (water droplets) on a resupinate form of brown-staining cheese polypore mushroom (Fuscopostia fragilis) on a pine log in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, April 30, 2023Lone Star Hiking Trail, San Jacinto County, Texas, United States
Close-up of guttation (water droplets) on a resupinate form of brown-staining cheese polypore mushroom (Fuscopostia fragilis) on a pine log in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, April 30, 2023Lone Star Hiking Trail, San Jacinto County, Texas, United States
Resupinate form of brown-staining cheese polypore mushroom (Fuscopostia fragilis) on a vertically cut surface of a pine log in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, April 30, 2023Lone Star Hiking Trail, San Jacinto County, Texas, United States
Pattern of resupinate form of brown-staining cheese polypore mushroom (Fuscopostia fragilis) on a vertically cut surface of a pine log in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, April 30, 2023Lone Star Hiking Trail, San Jacinto County, Texas, United States
Cap of a brown-staining cheese polypore mushroom (Fuscopostia fragilis) on a thick pine log on Caney Creek Trail (Little Lake Creek Loop Trail) east from Trailhead No. 4 in Sam Houston National Forest north from Montgomery. Texas, November 25, 2023Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Brown-staining cheese polypore mushrooms (Fuscopostia fragilis) on a thick pine log on Caney Creek Trail (Little Lake Creek Loop Trail) east from Trailhead No. 4 in Sam Houston National Forest north from Montgomery. Texas, November 25, 2023Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Spores of brown-staining cheese polypore mushrooms (Fuscopostia fragilis) collected a day before in Sam Houston National Forest north from Montgomery. Texas, November 26, 2023The observations document the presence of brown-staining cheese polypore mushrooms (Fuscopostia fragilis) in Sam Houston National Forest, Texas, over several years (2018-2023). The mushrooms were found growing on pine logs, with various forms observed, including resupinate and cap-like structures. Notable features included guttation (water droplets) on the resupinate form and distinct pore patterns. The observations were made in different areas of the forest, including Caney Creek, Richards Loop, and Big Creek Scenic Area. Spores were also collected for further study. Overall, the observations provide a detailed record of the mushroom's appearance, habitat, and behavior over time, contributing to our understanding of this species' biology and ecology. The consistent presence of Fuscopostia fragilis in the forest suggests it is a common and potentially ecologically important species in this ecosystem.
Mushroom Observer and Facebook for learning names of local mushrooms.
This web page was generated by a special script.