 Speckled blister lichen Trypethelium tropicum (Nigrovothelium tropicum) with black perithecia on bark of hackberry tree in Lick Creek Park. College Station, Texas, January 1, 2019
 Speckled blister lichen Trypethelium tropicum (Nigrovothelium tropicum) on a tree in Lick Creek Park. College Station, Texas, February 20, 2019
 Speckled blister lichen Trypethelium virens (Viridothelium virens) on atree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Bark sulphur-firedot lichen (Gyalolechia flavorubescens, Caloplaca flavorubescens) on bark of hackberry tree in Lick Creek Park. College Station, Texas, January 1, 2019
 Pattern of bark sulphur-firedot lichen (Gyalolechia flavorubescens, Caloplaca flavorubescens) on bark of hackberry tree in Lick Creek Park. College Station, Texas, January 1, 2019
 Texture of bark sulphur-firedot lichen (Gyalolechia flavorubescens, Caloplaca flavorubescens) on bark of hackberry tree in Lick Creek Park. College Station, Texas, January 1, 2019
 Orange apothecia of bark sulphur-firedot lichen (Gyalolechia flavorubescens, Caloplaca flavorubescens) on bark of hackberry tree in Lick Creek Park. College Station, Texas, January 1, 2019
 Rough speckled shield lichen (Punctelia rudecta) on tree bark in Lick Creek Park. College Station, Texas, February 3, 2019
 Bark rash lichen (Pyrenula cruenta) on hackberry in Lick Creek Park. College Station, Texas, January 9, 2019
 Crimson warts of bark rash lichen (Pyrenula cruenta) on hackberry in Lick Creek Park. College Station, Texas, January 9, 2019
 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
 Texture of sunken bloodspot lichen (Haematomma persoonii) on bark of hackberry tree in Lemontree Park. College Station, Texas, January 2, 2019
 Cracked ruffle lichen (Parmotrema reticulatum, Rimelia reticulata) on bark of hackberry tree in Lemontree Park. College Station, Texas, January 2, 2019
 Bark sulphur-firedot lichen (Gyalolechia flavorubescens, Caloplaca flavorubescens) on a hackberry tree in Lick Creek Park. College Station, Texas, February 3, 2019
 Close up of bark sulphur-firedot lichen (Gyalolechia flavorubescens, Caloplaca flavorubescens) on a hackberry tree in Lick Creek Park. College Station, Texas, February 3, 2019
 Texture of bark sulphur-firedot lichen (Gyalolechia flavorubescens, Caloplaca flavorubescens) on a hackberry tree in Lick Creek Park. College Station, Texas, February 3, 2019
 Powdery medallion lichen (Dirinaria applanata) on a small hackberry tree in Lick Creek Park. College Station, Texas, January 9, 2019
 Speckled shield lichen (Punctelia) in Lick Creek Park. College Station, Texas, January 18, 2019
 Speckled shield lichen (Punctelia) in Lick Creek Park. College Station, Texas, January 18, 2019
 Rough speckled shield lichen (Punctelia rudecta) on a tree in Lick Creek Park. College Station, Texas, February 3, 2019
 Rough speckled shield lichen (Punctelia rudecta) on a tree in Lick Creek Park. College Station, Texas, February 20, 2019
 Rough speckled shield lichen (Punctelia rudecta) on a tree in Lick Creek Park. College Station, Texas, February 3, 2019
 Bark of hackberry tree near Racoon Run Trail in Lick Creek Park. College Station, Texas, January 4, 2011
 Corky bark of hackberry tree near Racoon Run Trail in Lick Creek Park. College Station, Texas, January 4, 2011
 Blister lichen Trypethelium carolinianum (Bathelium carolinianum) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Blister lichen Trypethelium carolinianum (Bathelium carolinianum) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 19, 2020
 Lichen Dirinaria applanata or may be Physcia on smooth bark of hackberry tree at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
 Rosette lichen Dirinaria applanata or may be Physcia on smooth bark of hackberry tree at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
 Dwarf rosette lichen Physcia neogaea or may be P. aipolia or P. pumilior on smooth bark of hackberry tree at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
 Spores shaped as viruses or blood clots of corticioid mushroom Dendrothele macrodens from bark of a recently fallen big hackberry tree, collected a day before in Lick Creek Park. College Station, Texas, January 10, 2023
 Mealy rim-lichen (Lecanora strobilina) on bark of oak in Lick Creek Park. College Station, Texas, January 18, 2019
 Lichen Cryptothecia striata on rough oak bark in Lick Creek Park. College Station, Texas, January 18, 2019
 Rough speckled shield lichen (Punctelia rudecta) on yaupon holly or may be on oak in Lick Creek Park. College Station, Texas, February 3, 2019
 Common button lichen (Buellia stillingiana) on oak bark in Lick Creek Park. College Station, Texas, January 18, 2019
 Saucer lichen Ochrolechia pallescens and Punctelia on oak bark in Lick Creek Park. College Station, Texas, January 18, 2019
 Sugarberry (hackberry, Celtis laevigata) tree bark on Racoon Run Trail in Lick Creek Park. College Station, Texas, July 17, 2013
 Ruffle lichen (Parmotrema) on a tree in Lick Creek Park. College Station, Texas, January 18, 2019
 Sapsucker holes in warty bark of hackberry near Racoon Run Trail in Lick Creek Park. College Station, Texas, January 14, 2011
 Gold dust lichen Chrysothrix xanthina and some green lichen on tree bark on Racoon Run Trail in Lick Creek Park. College Station, Texas, July 17, 2013
 Powdery medallion lichen (Dirinaria applanata) on a tree in Lick Creek Park. College Station, Texas, January 18, 2019
 Powdery medallion lichen (Dirinaria applanata)(?) on a tree in Lick Creek Park. College Station, Texas, January 18, 2019
 Corticioid mushroom Dendrothele macrodens on bark of a recently fallen big hackberry on a pipeline right of way in Lick Creek Park. College Station, Texas, January 9, 2023
 Close-up of corticioid mushroom Dendrothele macrodens on bark of a recently fallen large hackberry in Lick Creek Park. College Station, Texas, January 9, 2023
 Polygonal spores of corticioid mushroom Dendrothele macrodens from bark of a recently fallen big hackberry, collected a day before in Lick Creek Park. College Station, Texas, January 10, 2023
 Small ant on bark of a hackberry tree in Bee Creek Park. College Station, Texas, April 9, 2021
 Polygonal spores at low magnification of corticioid mushroom Dendrothele macrodens from bark of a recently fallen big hackberry, collected a day before in Lick Creek Park. College Station, Texas, January 10, 2023
 Script lichen (Graphis) on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Large spores of unusual shape of corticioid mushroom Dendrothele macrodens from bark of a recently fallen big hackberry, collected a day before in Lick Creek Park. College Station, Texas, January 10, 2023
 Bark rash lichen (Pyrenula cruenta) in Lick Creek Park. College Station, Texas, February 20, 2019
 Saucer lichen Ochrolechia pallescens on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Details of script lichen (Graphis) on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Medallion lichen (Dirinaria confusa) on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Texture of script lichen (Graphis) on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 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
 Apothecia of medallion lichen (Dirinaria confusa) 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
 Tiny green liverwort and Graphis lichen on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Medallion lichen (Dirinaria confusa) on bark of a Mexican plum tree in Lick Creek Park. College Station, Texas, March 24, 2021
 Texture of white fringe lichen (Heterodermia albicans) on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Hackberry(?) bark in Lick Creek Park. College Station, Texas, November 10, 2020
 Various lichens on oak bark in Lick Creek Park. College Station, Texas, January 18, 2019
 Texture of bark of hackberry on Racoon Run Trail in Lick Creek Park. College Station, Texas, December 21, 2010
 Punctelia, Pertusaria and Phaeographis lichens on tree bark in Lick Creek Park. College Station, Texas, February 20, 2019
 Gold dust lichen Chrysothrix xanthina on tree bark on Turkey Creek Trail. Bryan, Texas, January 29, 2019
 Peeling bark on a tree near Racoon Run Trail in Lick Creek Park. College Station, Texas, January 4, 2011
 Bark of dead tree near Racoon Run Trail in Lick Creek Park. College Station, Texas, January 4, 2011
 Rough tree bark near Racoon Run Trail in Lick Creek Park. College Station, Texas, January 14, 2011
 Tunnels of bark beetles on a dry standing tree in Lick Creek Park. College Station, Texas, January 25, 2023
 Tree lichen Trypethelium virens (Viridothelium virens) forming yellowish-brown and olive warts in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 19, 2020
 Pyxine lichen on a tree in Lick Creek Park. College Station, Texas, February 3, 2019
 Fissurina lichen on bark of a magnolia tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
 Lichen Trypethelium carolinianum (Bathelium carolinianum) on an oak on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, January 26, 2019
 Bark of dead sycamore tree near Racoon Run Trail in Lick Creek Park. College Station, Texas, January 4, 2011
 Maze of tunnels of bark beetles on a dry standing tree in Lick Creek Park. College Station, Texas, January 25, 2023
 Texture of tunnels of bark beetles on a dry standing tree in Lick Creek Park. College Station, Texas, January 25, 2023
 Speckled shield lichen (Punctelia) on a tree on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, February 9, 2019
 Dirinaria lichen on tree bark on Kiwanis Nature Trail, College Station, Texas, February 26, 2019
 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
 Warty lichen Trypethelium carolinianum (Bathelium carolinianum) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, January 26, 2019
 Warts of lichen Trypethelium carolinianum (Bathelium carolinianum) on an oak on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, January 26, 2019
 Warty lichen Trypethelium carolinianum (Bathelium carolinianum) 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 tree in Lick Creek Park. College Station, Texas, February 3, 2019
 Rosette lichen (Physcia) on a tree in Lick Creek Park. College Station, Texas, February 20, 2019
 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
 Dead tree bark in swampy area near Racoon Run Trail in Lick Creek Park. College Station, Texas, January 14, 2011
 Rosette lichen (Physcia) on tree bark on Kiwanis Nature Trail, College Station, Texas, February 26, 2019
 Some rosette lichen (Physcia) on tree bark on Kiwanis Nature Trail, College Station, Texas, February 26, 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
 Warty texture of bark of hackberry (Celtis laevigata) on Racoon Run Trail in Lick Creek Park. College Station, Texas, December 17, 2008
 Orange apothecia of bark sulphur-firedot lichen (Gyalolechia flavorubescens, Caloplaca flavorubescens) in Lick Creek Park. College Station, Texas, February 3, 2019
 Bark rash lichen (Pyrenula cruenta) on tree bark in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Mealy rim-lichen (Lecanora strobilina) on a tree in Lick Creek Park. College Station, Texas, February 3, 2019
 Physcia lichen with brown apothecia on a tree in Lick Creek Park. College Station, Texas, February 3, 2019
 Frosted rim-lichen (Lecanora caesiorubella) on a tree in Lick Creek Park. College Station, Texas, February 3, 2019
 Rough speckled shield lichen (Punctelia rudecta) on a tree on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, March 1, 2019
 Crust fungus Hymenochaete on bark of a fallen branch of a pecan tree in Lick Creek Park. College Station, Texas, January 2, 2023
 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
 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
|