Bark rash lichen (Pyrenula cruenta) on a tree near the creek in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019 Lone Star Hiking Trail, Coldspring, TX 77331, USA
Crimson warts of bark rash lichen (Pyrenula cruenta) on a tree near the creek in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019 Lone Star Hiking Trail, Coldspring, TX 77331, USA
Shade form of bark rash lichen (Pyrenula cruenta) on a tree near the creek in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019 Lone Star Hiking Trail, Coldspring, TX 77331, USA
Bark rash lichen (Pyrenula cruenta) on hackberry in Lick Creek Park. College Station, Texas, January 9, 2019 Iron Bridge Trail, College Station, TX 77845, USA
Crimson warts of bark rash lichen (Pyrenula cruenta) on hackberry in Lick Creek Park. College Station, Texas, January 9, 2019 14802 Rock Prairie Rd, College Station, TX 77845, USA
Bark rash lichen (Pyrenula cruenta) on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019 Lone Star Hiking Trail, Coldspring, TX 77331, USA
Bark rash lichen (Pyrenula cruenta) on tree bark in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019 Lone Star Hiking Trail, Coldspring, TX 77331, USA
Texture of bark rash lichen (Pyrenula cruenta) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019 Lone Star Hiking Trail, Coldspring, TX 77331, USA
Bark rash lichen (Pyrenula cruenta) in Lick Creek Park. College Station, Texas, February 20, 2019 14802 Rock Prairie Rd, College Station, TX 77845, USA
Bark rash lichen (Pyrenula cruenta) on a tree in area of Winters Bayou in Sam Houston National Forest, east from Waverly. Texas, February 23, 2019 15451 FM1725, Cleveland, TX 77328, USA
Bark rash lichen (Pyrenula cruenta) on a holly tree on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, February 29, 2020 Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Texture of bark rash lichen (Pyrenula cruenta) on a holly tree on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, February 29, 2020 Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Warts of bark rash lichen (Pyrenula cruenta) on a holly tree on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, February 29, 2020 Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Bark rash lichen (Pyrenula cruenta) on floodplain in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, March 7, 2020 Lone Star Hiking Trail, Coldspring, TX 77331, USA
Texture of bark rash lichen (Pyrenula cruenta) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, March 7, 2020 Lone Star Hiking Trail, Coldspring, TX 77331, USA
Bark rash lichen (Pyrenula cruenta) on a fallen oak on Chinquapin Trail in Huntsville State Park. Texas, October 30, 2020 State Park Rd 40, New Waverly, TX 77358, USA
Texture of bark rash lichen (Pyrenula cruenta) on a fallen oak on Chinquapin Trail in Huntsville State Park. Texas, October 30, 2020 State Park Rd 40, New Waverly, TX 77358, USA
Bark rash lichen (Pyrenula cruenta) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, November 26, 2020 Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Bark rash lichen (Pyrenula cruenta) in Huntsville State Park. Texas, December 18, 2020 State Park Rd 40, New Waverly, TX 77358, USA