Extract from Wikipedia article: Callistosporium luteo-olivaceum is a species of agaric fungus in the family Tricholomataceae. It was originally described in 1859 as Agaricus luteo-olivaceus by Miles Joseph Berkeley and Moses Ashley Curtis in 1859. Rolf Singer transferred it to Callistosporium in 1946. The fungus has an extensive synonymy. Although rare, C. luteo-olivaceum is widely distributed in temperate and tropical areas of Europe and North America. In 2014, it was reported growing in pine forests in Western Himalaya, Pakistan.
Callistosporium luteo-olivaceum mushrooms in a hollow part of a big rotting pine stump on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest, near Huntsville. Texas, April 22, 2018 LSHT Little Lake Creek Loop, Montgomery, TX 77356, USA
Callistosporium luteo-olivaceum mushrooms on a decomposed pine stump on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest, near Huntsville. Texas, May 5, 2018
Mushrooms Callistosporium luteo-olivaceum on a complitely rotten pine stump on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest, near Huntsville. Texas, May 26, 2018 Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Group of Callistosporium luteo-olivaceum mushrooms on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest, near Huntsville. Texas, May 26, 2018 Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Cluster of Callistosporium luteo-olivaceum mushrooms on a rotten pine stump on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest, near Huntsville. Texas, May 26, 2018 Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Callistosporium luteo-olivaceum mushrooms on a big rotting pine log on floodplain on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest, near Huntsville. Texas, June 30, 2018 LSHT Little Lake Creek Loop, Montgomery, TX 77356, USA
Group of Callistosporium luteo-olivaceum mushrooms on a big rotting pine log on floodplain on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest, near Huntsville. Texas, June 30, 2018 LSHT Little Lake Creek Loop, Montgomery, TX 77356, USA
Callistosporium luteo-olivaceum mushrooms growing on a broken and rotting pine at one meter height (larger group at 3 meter height) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest, near Huntsville. Texas, June 30, 2018 LSHT Little Lake Creek Loop, Montgomery, TX 77356, USA
Close up of Callistosporium luteo-olivaceum mushrooms growing on a broken and rotting pine tree on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest, near Huntsville. Texas, June 30, 2018 LSHT Little Lake Creek Loop, Montgomery, TX 77356, USA
Mushrooms Callistosporium luteo-olivaceum on a rotten pine log on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 13, 2018 Lone Star Hiking Trail, Montgomery, TX 77356, USA
Callistosporium luteo-olivaceum mushrooms on a pine log on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, September 23, 2018 Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Callistosporium luteo-olivaceum mushrooms on a decomposed pine stump on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest near Huntsville. Texas, October 6, 2018 Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Young Callistosporium luteo-olivaceum mushrooms on a decomposed pine stump on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest near Huntsville. Texas, October 6, 2018 Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Callistosporium luteo-olivaceum mushrooms on a rotten pine stump on Lone Star Hiking Trail south from Stubblefield Campground in Sam Houston National Forest. Huntsville, Texas, October 13, 2018 Lone Star Hiking Trail, Montgomery, TX 77356, USA
Callistosporium luteo-olivaceum mushrooms on rotten pine wood on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, June 29, 2019 19671 Forest Rd 219, Richards, TX 77873, USA
Callistosporium luteo-olivaceum mushrooms on a pine stump on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, July 4, 2019 Lone Star Hiking Trail, Montgomery, TX 77356, USA
Callistosporium luteo-olivaceum mushrooms on a rotting pine stump on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, July 4, 2019 LSHT Little Lake Creek Loop, Montgomery, TX 77356, USA
Mushrooms Callistosporium luteo-olivaceum(?) on a pine log on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, August 11, 2019 Lone Star Hiking Trail, Montgomery, TX 77356, USA
Gills of a mushroom Callistosporium luteo-olivaceum(?) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, August 11, 2019 Lone Star Hiking Trail, Montgomery, TX 77356, USA
Mushrooms Callistosporium luteo-olivaceum(?) on a rotting pine log on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, August 11, 2019 Lone Star Hiking Trail, Montgomery, TX 77356, USA
Mushrooms Callistosporium luteo-olivaceum(?) on a rotting pine log without bark on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, August 11, 2019 Lone Star Hiking Trail, Montgomery, TX 77356, USA
Mushrooms Callistosporium luteo-olivaceum on rotting pine wood on Little Lake Creek Loop Trail in Sam Houston National Forest. Richards, Texas, November 18, 2019 Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Mushrooms Callistosporium luteo-olivaceum on a fallen pine on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, May 23, 2020 Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Mushrooms Callistosporium luteo-olivaceum on a mossy pine log on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, May 23, 2020 Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Callistosporium luteo-olivaceum mushrooms on a fallen pine on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, May 31, 2020 Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Callistosporium luteo-olivaceum mushrooms on a pine log on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, May 31, 2020 Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Callistosporium luteo-olivaceum mushrooms on a rotting pine log on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, May 31, 2020 Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Mushrooms Callistosporium luteo-olivaceum on a pine log on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, June 2, 2022 Lone Star Hiking Trail, Montgomery County, Texas, United States
Mushrooms Callistosporium luteo-olivaceum on rotting pine wood on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, June 2, 2022 Lone Star Hiking Trail, Montgomery County, Texas, United States
Spores of mushrooms Callistosporium luteo-olivaceum collected in Sam Houston National Forest north from Montgomery. Texas, June 2, 2022
Mushrooms Callistosporium luteo-olivaceum on a mossy pine log on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, August 28, 2022 Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Spores of mushrooms Callistosporium luteo-olivaceum collected in Sam Houston National Forest near Montgomery. Texas, August 28, 2022
Mushrooms Callistosporium luteo-olivaceum on a rotting pine on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, September 11, 2022 Lone Star Hiking Trail, Walker County, Texas, United States
Mushrooms Callistosporium luteo-olivaceum on a pine on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, September 11, 2022 Lone Star Hiking Trail, Walker County, Texas, United States
Caps of mushrooms Callistosporium luteo-olivaceum on pine wood on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, September 11, 2022 Lone Star Hiking Trail, Walker County, Texas, United States
Mushrooms Callistosporium luteo-olivaceum on rotten pieces of pine in Little Thicket Nature Sanctuary. Cleveland, Texas, April 22, 2023 San Jacinto County, Texas, United States