 Pertusaria, Ochrolechia pallescens and Haematomma persoonii lichens on a branch of a small oak in Lick Creek Park. College Station, Texas, June 17, 2019
 Lecanora lichen together with Pertusaria and Haematomma persoonii in Lick Creek Park. College Station, Texas, June 17, 2019
 Sunken bloodspot lichen (Haematomma persoonii) in Lick Creek Park. College Station, Texas, June 17, 2019
 Saucer lichen Ochrolechia pallescens on a fallen oak twig in Lick Creek Park. College Station, Texas, June 18, 2019
 Pertusaria and sunken bloodspot (Haematomma persoonii) lichens on a dry oak in Lick Creek Park. College Station, Texas, January 23, 2020
 Saucer lichen Ochrolechia pallescens on oak in Lick Creek Park. College Station, Texas, January 18, 2019
 Saucer lichen Ochrolechia pallescens in Lick Creek Park. College Station, Texas, January 18, 2019
 Sunken bloodspot lichen (Haematomma persoonii) on an oak in Lick Creek Park. College Station, Texas, February 3, 2019
 Saucer lichen Ochrolechia pallescens on an oak twig in Lick Creek Park. College Station, Texas, March 11, 2019
 Saucer lichen Ochrolechia pallescens on an oak twig in Lick Creek Park. College Station, Texas, February 3, 2019
 Sunken bloodspot lichen (Haematomma persoonii) and Lecanora on oak in Lick Creek Park. College Station, Texas, January 18, 2019
 Sunken bloodspot lichen (Haematomma persoonii) on an oak branch in Lick Creek Park. College Station, Texas, February 3, 2019
 Red patch of sunken bloodspot lichen (Haematomma persoonii) on an oak in Lick Creek Park. College Station, Texas, February 3, 2019
 Sunken bloodspot lichen (Haematomma persoonii) on an oak twig in Lick Creek Park. College Station, Texas, February 3, 2019
 Saucer lichen Ochrolechia pallescens and Punctelia on oak bark in Lick Creek Park. College Station, Texas, January 18, 2019
 Warty lichen (Pertusaria) in Lick Creek Park. College Station, Texas, January 18, 2019
 Sunken bloodspot lichen (Haematomma persoonii) on river birch in Lick Creek Park. College Station, Texas, January 18, 2019
 Warty lichen (Pertusaria) on a tree in Lick Creek Park. College Station, Texas, February 3, 2019
 Saucer lichen Ochrolechia pallescens on yaupon(?) in Hensel Park. College Station, Texas, February 12, 2019
 Sunken bloodspot lichen (Haematomma persoonii) on bark of hackberry tree in Lemontree Park. College Station, Texas, January 2, 2019
 Warty lichen (Pertusaria) on a big fallen oak in Hensel Park. College Station, Texas, February 12, 2019
 Texture of sunken bloodspot lichen (Haematomma persoonii) on bark of hackberry tree in Lemontree Park. College Station, Texas, January 2, 2019
 Red apothecia of sunken bloodspot lichen (Haematomma persoonii) on bark of hackberry tree in Lemontree Park. College Station, Texas, January 2, 2019
 Saucer lichen Ochrolechia pallescens on bark of a small honey mesquite tree when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Lick Creek Park. College Station, Texas, October 25, 2024
 Saucer lichen Ochrolechia pallescens on a stem of yaupon holly in Hensel Park. College Station, Texas, December 30, 2018
 Saucer lichen Ochrolechia pallescens on bark of yaupon holly in Hensel Park. College Station, Texas, December 30, 2018
 Warty lichen (Pertusaria) on a stem of wax-leaf privet in Hensel Park. College Station, Texas, December 30, 2018
 Sunken bloodspot lichen (Haematomma persoonii) on a fallen oak twig in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Warty lichen (Pertusaria) on concrete remains near the columns in Old Bailor park. Independence, Texas, February 27, 2019
 Close up of warty lichen (Pertusaria) on concrete remains near the columns in Old Bailor park. Independence, Texas, February 27, 2019
 Warty lichen (Pertusaria) on magnolia bark in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
 Warty lichen (Pertusaria) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, January 26, 2019
 Sunken bloodspot lichen (Haematomma persoonii) on a deciduous tree in Old Independence Cemetery near Independence. Texas, February 10, 2019
 Warty lichen (Pertusaria) on oak bark on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, January 26, 2019
 Warty lichen (Pertusaria) on bark of Mexican buckeye in Antique Rose Emporium. Independence, Texas, August 10, 2019
 Sunken bloodspot lichen (Haematomma persoonii) on an oak in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 12, 2019
 Saucer lichen Ochrolechia pallescens on a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 27, 2019
 Saucer lichen Ochrolechia pallescens on hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Warty lichen (Pertusaria) on a fallen tree on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, January 26, 2019
 Sunken bloodspot lichen (Haematomma persoonii) on a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 27, 2019
 Saucer lichen Ochrolechia pallescens on a branch of "Liberty Oak" in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Saucer lichen Ochrolechia pallescens on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Sunken bloodspot lichen (Haematomma persoonii) on a fallen oak on Alligator Branch section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, February 17, 2019
 Apothecia of saucer lichen Ochrolechia pallescens on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Saucer lichen Ochrolechia pallescens with apothecia on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Warty lichen (Pertusaria)on a bark of a thin fallen tree on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, January 26, 2019
 Warty lichen (Pertusaria) on an oak in mixed pine and oak forest on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, January 26, 2019
 Warty lichen (Pertusaria) on a branch of "Liberty Oak" in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Sunken bloodspot lichen (Haematomma persoonii) on a petrified wood tomstone in Odd Fellow Cemetery. Anderson, Texas, December 31, 2018
 Warty lichen (Pertusaria) on a petrified wood tomstone in Odd Fellow Cemetery. Anderson, Texas, December 31, 2018
 Saucer lichen Ochrolechia pallescens on a fallen piece of tree bark on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, September 10, 2023
 Warty lichen (Pertusaria) on a tree on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, April 24, 2021
 Saucer lichen Ochrolechia pallescens on bark of a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
 Warty lichen (Pertusaria) on a fallen oak twig on Richards Loop Trail in Sam Houston National Forest. Texas, January 27, 2024
 Sunken bloodspot lichen (Haematomma persoonii) on bark of a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
 Warty lichen (Pertusaria) on bark of Mexican buckeye (Ungnadia speciosa) in Antique Rose Emporium. Independence, Texas, December 29, 2018
 Close-up of warty lichen (Pertusaria) on a fallen oak twig on Richards Loop Trail in Sam Houston National Forest. Texas, January 27, 2024
 Sunken bloodspot lichen (Haematomma persoonii) on a recently fallen oak on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, December 26, 2020
 Crustose lichen Pertusaria in ultraviolet light on a small mesquite tree on Post Oak Trail in Lick Creek Park. College Station, Texas, August 23, 2024
 Texture of sunken bloodspot lichen (Haematomma persoonii) on a recently fallen oak on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, December 26, 2020
 Close-up of sunken bloodspot lichen (Haematomma persoonii) on a recently fallen oak on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, December 26, 2020
 Pattern od sunken bloodspot lichen (Haematomma persoonii) on a recently fallen oak on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, December 26, 2020
 Sunken bloodspot lichen (Haematomma persoonii) with other crustose lichens on a recently fallen oak on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, December 26, 2020
 Punctelia, Pertusaria and Phaeographis lichens on tree bark in Lick Creek Park. College Station, Texas, February 20, 2019
 Sunken bloodspot lichen (Haematomma persoonii) with moss and other crustose lichens on a recently fallen oak on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, December 26, 2020
 Pertusaria and other crustose lichen on bark of a small honey mesquite tree when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Lick Creek Park. College Station, Texas, October 25, 2024
 Lecanora lichen in wet condition in Lick Creek Park. College Station, Texas, June 17, 2019
 Lecanora lichen on a small oak in Lick Creek Park. College Station, Texas, June 17, 2019
 Ramalina(?) lichen on a fallen twig of oak in Lick Creek Park. College Station, Texas, June 17, 2019
 Perforated ruffle lichen (Parmotrema perforatum) in Lick Creek Park. College Station, Texas, June 18, 2019
 Octopus-like palmetto lichen (Ramalina celastri) in Lick Creek Park. College Station, Texas, June 18, 2019
 Southern crimson dot lichen (Ramboldia russula) in Lick Creek Park. College Station, Texas, June 18, 2019
 Medallion lichen (Dirinaria confusa) on a fallen oak branch in Lick Creek Park. College Station, Texas, June 17, 2019
 Perforated ruffle lichen (Parmotrema perforatum) on a twig in Lick Creek Park. College Station, Texas, June 17, 2019
 Bushy beard lichen (Usnea strigosa) fallen from an oak in Lick Creek Park. College Station, Texas, June 18, 2019
 Southern crimson dot lichen (Ramboldia russula) on a fallen oak twig in Lick Creek Park. College Station, Texas, June 18, 2019
 Perforated ruffle lichen (Parmotrema perforatum) on a fallen oak twig in Lick Creek Park. College Station, Texas, June 18, 2019
 Slender orange bush lichen (Teloschistes exilis) on a fallen twig in Lick Creek Park. College Station, Texas, June 18, 2019
 Perforated ruffle lichen (Parmotrema perforatum) on a fallen oak branch after windy weather in Lick Creek Park. College Station, Texas, June 17, 2019
 Perforated ruffle lichen (Parmotrema perforatum) and other foliose lichens on a fallen oak twig in Lick Creek Park. College Station, Texas, June 18, 2019
 Pertusaria lichen on a twig at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, December 21, 2019
 Green crustose lichen Pertusaria on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, January 26, 2019
 Warty spurge (Euphorbia spathulata) in Lick Creek Park. College Station, Texas, March 7, 2023
 Ochrolechia(?) lichen on a fallen aspen tree near Kuzmolovo, north from Saint Petersburg. Russia, May 8, 2019
 Warty lichen Pyrenula on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Warty lichen Pyrenula on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Phaeographis lichen on an oak in Lick Creek Park. College Station, Texas, February 3, 2019
 Shoots of warty spurge (Euphorbia spathulata) in Lick Creek Park. College Station, Texas, March 2, 2023
 Pyxine lichen on a tree in Lick Creek Park. College Station, Texas, February 3, 2019
 Script lichen (Graphis) on an oak in Lick Creek Park. College Station, Texas, January 18, 2019
 Lecanora lichen on an oak twig in Lick Creek Park. College Station, Texas, February 3, 2019
 Button lichen (Buellia) in Lick Creek Park. College Station, Texas, January 18, 2019
 Ochrolechia(?) lichen with Xanthoria parietina on a fallen aspen tree near Kuzmolovo, north from Saint Petersburg. Russia, May 8, 2019
 Rosette lichen (Physcia) on a tree in Lick Creek Park. College Station, Texas, February 20, 2019
 Speckled shield lichen (Punctelia) in Lick Creek Park. College Station, Texas, January 18, 2019
 Frosted rim-lichen (Lecanora caesiorubella) on an oak in Lick Creek Park. College Station, Texas, January 18, 2019
 Turbin lichen (Cladonia peziziformis) in Lick Creek Park. College Station, Texas, April 5, 2019
 Pale brown Lecanora lichen on an oak in Lick Creek Park. College Station, Texas, January 18, 2019
 Pale brown Lecanora lichen on an oak in Lick Creek Park. College Station, Texas, February 20, 2019
|