 Rough speckled shield lichen (Punctelia rudecta) on tree bark in Lick Creek Park. College Station, Texas, February 3, 2019
 Warty lichen (Pertusaria) on a tree in Lick Creek Park. College Station, Texas, February 3, 2019
 Phaeographis lichen on an oak 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 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
 Pertusaria, Ochrolechia pallescens and Haematomma persoonii lichens on a branch of a small oak in Lick Creek Park. College Station, Texas, June 17, 2019
 Saucer lichen Ochrolechia pallescens and Punctelia on oak bark in Lick Creek Park. College Station, Texas, January 18, 2019
 Various lichens on oak bark in Lick Creek Park. College Station, Texas, January 18, 2019
 Various lichens on oak bark in Lick Creek Park. College Station, Texas, June 17, 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
 Tree bark with lichens on Racoon Run Trail in Lick Creek Park. College Station, Texas, July 17, 2013
 Lichens on tree bark on Raccoon Run Trail in Lick Creek Park. College Station, Texas, December 19, 2013
 Pertusaria and sunken bloodspot (Haematomma persoonii) lichens on a dry oak in Lick Creek Park. College Station, Texas, January 23, 2020
 Various lichens on bark of a fallen oak branch in Lick Creek Park. College Station, Texas, June 17, 2019
 Various lichens on acacia(?) tree bark in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, February 12, 2019
 Various bark dwelling lichens on a tree in abandoned TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, February 22, 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
 Crustose lichens 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
 Bark sulphur-firedot lichen (Gyalolechia flavorubescens, Caloplaca flavorubescens) on a hackberry tree in Lick Creek Park. College Station, Texas, February 3, 2019
 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
 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 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
 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
 Warty lichen (Pertusaria) in Lick Creek Park. College Station, Texas, January 18, 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
 Lecanora lichen together with Pertusaria and Haematomma persoonii in Lick Creek Park. College Station, Texas, June 17, 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) together with Ochrolechia pallescens and Haematomma persoonii in Lick Creek Park. College Station, Texas, June 17, 2019
 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
 Warty lichen (Pertusaria) on a big fallen oak in Hensel Park. College Station, Texas, February 12, 2019
 Bark rash lichen (Pyrenula cruenta) in Lick Creek Park. College Station, Texas, February 20, 2019
 Crustose lichens on bark of a fallen water oak in ultraviolet light on Racoon Run Trail in Lick Creek Park. College Station, Texas, November 15, 2024
 Black dots of Sordariomycetes fungi on bark of a fallen tree in wet area in Lick Creek Park. College Station, Texas, February 23, 2024
 Close-up of black dots of Sordariomycetes fungi on bark of a fallen tree in wet area in Lick Creek Park. College Station, Texas, February 23, 2024
 Pattern of black dots of Sordariomycetes fungi on bark of a fallen tree in wet area in Lick Creek Park. College Station, Texas, February 23, 2024
 Spores (in KOH) from black dots of Sordariomycetes fungi on bark of a fallen tree in wet area, collected a day before in Lick Creek Park. College Station, Texas, February 24, 2024
 Spores (in KOH, low magnification) from black dots of Sordariomycetes fungi on bark of a fallen tree in wet area, collected a day before in Lick Creek Park. College Station, Texas, February 24, 2024
 Speckled blister lichen Trypethelium tropicum (Nigrovothelium tropicum) on bark of hackberry tree in Lick Creek Park. College Station, Texas, January 1, 2019
 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
 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
 Foliose lichens on a fallen oak twig in Lick Creek Park. College Station, Texas, June 18, 2019
 Various foliose lichens on a fallen oak twig in Lick Creek Park. College Station, Texas, June 18, 2019
 Lecanora and Buellia lichens on a small oak in Lick Creek Park. College Station, Texas, June 17, 2019
 Various fruticose lichens on a fallen oak twig in Lick Creek Park. College Station, Texas, January 22, 2019
 Pyxine lichen on a tree in Lick Creek Park. College Station, Texas, February 3, 2019
 Dirinaria confusa together with other lichens on a fallen oak branch in Lick Creek Park. College Station, Texas, June 17, 2019
 Dirinaria lichen on tree bark on Kiwanis Nature Trail, College Station, Texas, February 26, 2019
 Warty lichen (Pertusaria) on magnolia bark in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
 Male cones on a red cedar 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
 Orange apothecia of bark sulphur-firedot lichen (Gyalolechia flavorubescens, Caloplaca flavorubescens) in Lick Creek Park. College Station, Texas, February 3, 2019
 Green and orange foliose lichens on a fallen oak twig in Lick Creek Park. College Station, Texas, June 18, 2019
 Bark rash lichen (Pyrenula cruenta) on tree bark in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Some rosette lichen (Physcia) on tree bark on Kiwanis Nature Trail, College Station, Texas, February 26, 2019
 Rosette lichen (Physcia) on tree bark on Kiwanis Nature Trail, College Station, Texas, February 26, 2019
 Foliose lichens on a fallen oak twig in Lick Creek Park. College Station, Texas, February 3, 2023
 Crustose lichens in ultraviolet light on a small mesquite tree on Post Oak Trail in Lick Creek Park. College Station, Texas, August 23, 2024
 Frosted rim-lichen (Lecanora caesiorubella) on a tree in Lick Creek Park. College Station, Texas, February 3, 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
 Golden eye lichen (Teloschistes chrysophthalmus) with other lichens on a branch of huisache(?) tree in abandoned TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, February 22, 2019
 Tree bark in Lick Creek Park. College Station, Texas, August 22, 2012
 Close-up of crustose lichens in ultraviolet light on a small mesquite tree on Post Oak Trail in Lick Creek Park. College Station, Texas, August 23, 2024
 White fringe lichen (Heterodermia albicans) on a tree in Lick Creek Park. College Station, Texas, February 20, 2019
 White fringe lichen (Heterodermia albicans) on a tree in Lick Creek Park. College Station, Texas, February 3, 2019
 Texture of tree bark in Lick Creek Park. College Station, Texas, December 14, 2012
 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
 Close-up of crustose lichens with apothecia in ultraviolet light on a small mesquite tree on Post Oak Trail in Lick Creek Park. College Station, Texas, August 23, 2024
 A tree limb with slender orange bush (Teloschistes exilis) and Ramalina lichens on Raccoon Run Trail in Lick Creek Park. College Station, Texas, December 26, 2013
 Perforated ruffle lichen (Parmotrema perforatum) and other foliose lichens on a fallen oak twig in Lick Creek Park. College Station, Texas, June 18, 2019
 Tree bark on Racoon Run Trail in Lick Creek Park. College Station, Texas, November 1, 2012
 Tree bark with sapsucker holes in Lick Creek Park. College Station, Texas, October 2, 2012
 Bark of a tree on Racoon Run Trail in Lick Creek Park. College Station, Texas, July 17, 2013
 Tree bark on Raccoon Run Trail in Lick Creek Park. College Station, Texas, December 19, 2013
 Bark of lacebark elm tree (Ulmus parvifolia) in Wolf Pen Creek Park. College Station, Texas, February 22, 2024
 Speckled shield lichen (Punctelia) on a tree on Alligator Branch section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, February 17, 2019
 Some green liverwort and lichens on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Bark on a fallen tree near Racoon Run Trail in Lick Creek Park. College Station, Texas, December 21, 2010
 Rough tree bark on Racoon Run Trail in Lick Creek Park. College Station, Texas, July 17, 2013
 Rotten tree bark on Racoon Run Trail in Lick Creek Park. College Station, Texas, July 17, 2013
 Bark of a dead tree on Racoon Run Trail in Lick Creek Park. College Station, Texas, July 17, 2013
 Texture of bark of dry oak tree on Racoon Run Trail in Lick Creek Park. College Station, Texas, July 17, 2013
 Chinaberry(?) tree bark on Racoon Run Trail in Lick Creek Park. College Station, Texas, July 17, 2013
 Rough tree bark near Racoon Run Trail in Lick Creek Park. College Station, Texas, January 14, 2011
 Bark of chinaberry tree on Racoon Run Trail in Lick Creek Park. College Station, Texas, July 28, 2013
 Tunnels of bark beetles on a dry standing tree in Lick Creek Park. College Station, Texas, January 25, 2023
 Bark of oak tree on Iron Bridge Trail in Lick Creek Park. College Station, Texas, July 17, 2013
 Bark of hackberry 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
 Brown tree bark on Racoon Run Trail in Lick Creek Park. College Station, Texas, July 28, 2013
 Peeling bark on a tree near Racoon Run Trail in Lick Creek Park. College Station, Texas, January 4, 2011
 Bark of oak tree on Iron Bridge Trail in Lick Creek Park. College Station, Texas, July 30, 2013
 Close-up of bark of lacebark elm tree (Ulmus parvifolia) in Wolf Pen Creek Park. College Station, Texas, February 22, 2024
 White fringe lichen (Heterodermia albicans) with brown apothecia on a yaupon(?) tree in Lick Creek Park. College Station, Texas, February 20, 2019
 Warty lichen (Pertusaria) on bark of Mexican buckeye in Antique Rose Emporium. Independence, Texas, August 10, 2019
|