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
Orange apothecia of bark sulphur-firedot lichen (Gyalolechia flavorubescens, Caloplaca flavorubescens) in Lick Creek Park. College Station, Texas, February 3, 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
Apothecia of bark sulphur-firedot lichen (Gyalolechia flavorubescens, Caloplaca flavorubescens) on a fallen oak near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, February 21, 2021
Bark sulphur-firedot lichen (Gyalolechia flavorubescens, Caloplaca flavorubescens) with green moss on bark of a fallen oak near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, February 21, 2021
Bark sulphur-firedot lichen (Gyalolechia flavorubescens, Caloplaca flavorubescens) on a fallen oak near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, February 21, 2021
Bark sulphur-firedot lichen (Gyalolechia flavorubescens, Caloplaca flavorubescens) among moss on a fallen oak near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, February 21, 2021
Texture of bark sulphur-firedot lichen (Gyalolechia flavorubescens, Caloplaca flavorubescens) on a fallen oak near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, February 21, 2021
Close-up of bark sulphur-firedot lichen (Gyalolechia flavorubescens, Caloplaca flavorubescens) on a fallen oak near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, February 21, 2021
Red apothecia of sunken bloodspot lichen (Haematomma persoonii) on bark of hackberry tree in Lemontree Park. College Station, Texas, January 2, 2019
Speckled blister lichen Trypethelium tropicum (Nigrovothelium tropicum) on bark of hackberry tree in Lick Creek Park. College Station, Texas, January 1, 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
Brick-spored firedot lichen Brigantiaea leucoxantha with apothecia on tree bark in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
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
Crimson warts of bark rash lichen (Pyrenula cruenta) on hackberry in Lick Creek Park. College Station, Texas, January 9, 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
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
Orange apothecia of brick-spored firedot lichen Brigantiaea leucoxantha on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 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
Brick-spored firedot lichen (Brigantiaea)(?) on bark of a deciduous tree near the creek in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
Firedot lichen Xanthocarpia crenulatella (Caloplaca crenulatella) (orange) and Acarospora (brown) on sandstone on a bridge in Wolf Pen Creek Park. College Station, Texas, January 13, 2018
Spotted rosette lichen Physcia pumilior with apothecia on a tree bark in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, February 12, 2019
Orange apothecia of firedot lichen Squamulea squamosa (Caloplaca squamosa) on a tomb in Independence Cemetery. Texas, March 26, 2024
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
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
Rough speckled shield lichen (Punctelia rudecta) on tree bark in Lick Creek Park. College Station, Texas, February 3, 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
Saucer lichen Ochrolechia pallescens and Punctelia on oak bark in Lick Creek Park. College Station, Texas, January 18, 2019
Common button lichen (Buellia stillingiana) on oak bark in Lick Creek Park. College Station, Texas, January 18, 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
Brick-spored firedot lichen Brigantiaea leucoxantha on tree bark in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 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
Close up of brick-spored firedot lichen Brigantiaea leucoxantha on tree bark in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
Brick-spored firedot lichen Brigantiaea leucoxantha on tree bark on floodplain in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
Firedot lichen Caloplaca subsoluta (Squamulea subsoluta, Caloplaca irrubescens) on limestone near the river in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
Powdery medallion lichen (Dirinaria applanata) on a small hackberry tree in Lick Creek Park. College Station, Texas, January 9, 2019
Sugarberry (hackberry, Celtis laevigata) tree bark on Racoon Run Trail in Lick Creek Park. College Station, Texas, July 17, 2013
Apothecia of firedot lichen Squamulea squamosa (Caloplaca squamosa) on sandstone of Lost Pines Overlook in Bastrop State Park. Bastrop, Texas, March 14, 2019
Firedot lichen Squamulea squamosa (Caloplaca squamosa) with apothecia on sandstone of Lost Pines Overlook in Bastrop State Park. Bastrop, Texas, March 14, 2019
Firedot lichen Xanthocarpia crenulatella (Caloplaca crenulatella) (orange), Acarospora (brown), Acarospora or Pleopsideum (yellow) and Lecidea(?)(black) lichens on sandstone rocks of a bridge in Wolf Pen Creek Park. College Station, Texas, January 13, 2018
Bark rash lichen (Pyrenula cruenta) on tree bark in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 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
Firedot lichen Caloplaca subsoluta (Squamulea subsoluta, Caloplaca irrubescens) on a granite tombstone in old Port Sullivan cemetery, west from Hearne. Texas, January 8, 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
Physcia lichen with brown apothecia on a tree in Lick Creek Park. College Station, Texas, February 3, 2019
Firedot lichen Caloplaca subsoluta (Squamulea subsoluta, Caloplaca irrubescens) with black prothallus on a granite tomb in old Port Sullivan cemetery, west from Hearne. Texas, January 8, 2019
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
Small ant on bark of a hackberry tree in Bee Creek Park. College Station, Texas, April 9, 2021
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
Peppered rock-shield lichen (Xanthoparmelia conspersa) and firedot lichen Caloplaca on a tomb in City Cemetery. Bryan, Texas, January 3, 2019
Bark rash lichen (Pyrenula cruenta) in Lick Creek Park. College Station, Texas, February 20, 2019
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
Hackberry(?) bark in Lick Creek Park. College Station, Texas, November 10, 2020
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
White fringe lichen (Heterodermia albicans) with brown apothecia on a yaupon(?) tree in Lick Creek Park. College Station, Texas, February 20, 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
Details of script lichen (Graphis) on bark of hackberry tree 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
Medallion lichen (Dirinaria confusa) on bark of a Mexican plum tree in Lick Creek Park. College Station, Texas, March 24, 2021
Tiny green liverwort and Graphis lichen on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
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
Various lichens on oak bark in Lick Creek Park. College Station, Texas, January 18, 2019
Blue and orange fluorescent lichens on bark of hackberry in ultraviolet light in Lemontree Park. College Station, Texas, November 5, 2024
Texture of bark of hackberry on Racoon Run Trail in Lick Creek Park. College Station, Texas, December 21, 2010
Close-up of blue and orange fluorescent lichens on bark of hackberry in ultraviolet light in Lemontree Park. College Station, Texas, November 5, 2024
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
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
Gold dust lichen Chrysothrix xanthina on tree bark on Turkey Creek Trail. Bryan, Texas, January 29, 2019
Punctelia, Pertusaria and Phaeographis lichens on tree bark in Lick Creek Park. College Station, Texas, February 20, 2019
Dirinaria lichen on tree bark on Kiwanis Nature Trail, College Station, Texas, February 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
Fissurina lichen on bark of a magnolia tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
Grey crustose lichen Aspicilia with orange firedot lichen Caloplaca on granite in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
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
Dead tree bark in swampy area near Racoon Run Trail in Lick Creek Park. College Station, Texas, January 14, 2011
Warty texture of bark of hackberry (Celtis laevigata) on Racoon Run Trail in Lick Creek Park. College Station, Texas, December 17, 2008
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
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
Crust fungus Hymenochaete on bark of a fallen branch of a pecan tree in Lick Creek Park. College Station, Texas, January 2, 2023
Rosette lichen (Physcia), possibly P. aipolia, P. pumilior, or P. neogaea, with apothecia near the base of a big tree, possibly hackberry, in Hensel Park. College Station, Texas, December 30, 2018
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
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