 Lichen Cryptothecia striata in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
 Lichen Cryptothecia striata on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
 Rough speckled shield lichen (Punctelia rudecta) on tree bark in Lick Creek Park. College Station, Texas, February 3, 2019
 Lichen Cryptothecia striata on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Lichen Cryptothecia striata on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 19, 2020
 Spreading lichen Cryptothecia striata on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Round patch of lichen Cryptothecia striata on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 19, 2020
 Thallus surface of a lichen Cryptothecia striata on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 19, 2020
 Lobed cotton lichen (Crocynia pyxinoides, Phyllopsora pyxinoides) and Cryptothecia striata 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
 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) on bark of hackberry tree in Lick Creek Park. College Station, Texas, January 1, 2019
 Mealy rim-lichen (Lecanora strobilina) on bark of oak in Lick Creek Park. College Station, Texas, January 18, 2019
 Lichen Cryptothecia striata on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, March 20, 2021
 Close-up of lichen Cryptothecia striata in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, March 20, 2021
 Rough tree bark near Racoon Run Trail in Lick Creek Park. College Station, Texas, January 14, 2011
 Common button lichen (Buellia stillingiana) on oak bark in Lick Creek Park. College Station, Texas, January 18, 2019
 Bark rash lichen (Pyrenula cruenta) on hackberry in Lick Creek Park. College Station, Texas, January 9, 2019
 Saucer lichen Ochrolechia pallescens and Punctelia on oak bark in Lick Creek Park. College Station, Texas, January 18, 2019
 Crimson warts of bark rash lichen (Pyrenula cruenta) on hackberry in Lick Creek Park. College Station, Texas, January 9, 2019
 Lichen Cryptothecia striata on a tree on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, March 22, 2020
 Cottony thallus surface of a lichen Cryptothecia striata on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, April 28, 2018
 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
 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 yaupon holly or may be on oak in Lick Creek Park. College Station, Texas, February 3, 2019
 Some zonate fungus spreading over Cryptothecia striata lichen on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, April 24, 2021
 Brown spot of some fungus over Cryptothecia striata lichen on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, April 24, 2021
 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
 Rough bark of Mexican plum in Lick Creek Park. College Station, Texas, December 11, 2020
 Phyllopsora pyxinoides (Crocynia pyxinoides) and Cryptothecia striata lichens on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Lichens Cryptothecia striata and Phyllopsora pyxinoides (Crocynia pyxinoides) on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 Bark rash lichen (Pyrenula cruenta) in Lick Creek Park. College Station, Texas, February 20, 2019
 Rough tree bark on Racoon Run Trail in Lick Creek Park. College Station, Texas, July 17, 2013
 Rough bark of winged elm (Ulmus alata) on Post Oak Trail in Lick Creek Park. College Station, Texas, November 27, 2020
 Various lichens on oak bark in Lick Creek Park. College Station, Texas, January 18, 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
 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) 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
 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
 Cracked ruffle lichen (Parmotrema reticulatum, Rimelia reticulata) on bark of hackberry tree in Lemontree Park. College Station, Texas, January 2, 2019
 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
 Script lichen (Graphis) on an oak in Lick Creek Park. College Station, Texas, January 18, 2019
 Warty lichen (Pertusaria) in Lick Creek Park. College Station, Texas, January 18, 2019
 Button lichen (Buellia) in Lick Creek Park. College Station, Texas, January 18, 2019
 Saucer lichen Ochrolechia pallescens in Lick Creek Park. College Station, Texas, January 18, 2019
 Speckled shield lichen (Punctelia) in Lick Creek Park. College Station, Texas, January 18, 2019
 Graphis lichen with orange alga on an oak in Lick Creek Park. College Station, Texas, January 18, 2019
 Ruffle lichen (Parmotrema) on a tree in Lick Creek Park. College Station, Texas, January 18, 2019
 Speckled shield lichen (Punctelia) in Lick Creek Park. College Station, Texas, January 18, 2019
 Pale brown Lecanora lichen on an oak in Lick Creek Park. College Station, Texas, January 18, 2019
 Saucer lichen Ochrolechia pallescens on oak 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
 White fringe lichen (Heterodermia albicans)(?) in Lick Creek Park. College Station, Texas, January 18, 2019
 White fringe lichen (Heterodermia albicans)(?) in Lick Creek Park. College Station, Texas, January 18, 2019
 Powdery medallion lichen (Dirinaria applanata)(?) in Lick Creek Park. College Station, Texas, January 18, 2019
 Graphis lichen with orange alga Trentepohlia(?) on an oak in Lick Creek Park. College Station, Texas, January 18, 2019
 Powdery medallion lichen (Dirinaria applanata)(?) in Lick Creek Park. College Station, Texas, January 18, 2019
 Medallion lichen (Dirinaria confusa) on yaupon in Lick Creek Park. College Station, Texas, January 6, 2019
 Small fringe lichen (Heterodermia) on yaupon in Lick Creek Park. College Station, Texas, January 18, 2019
 Powdery medallion lichen (Dirinaria applanata) in Lick Creek Park. College Station, Texas, January 18, 2019
 Streaked rosette lichen (Physcia atrostriata) in Lick Creek Park. College Station, Texas, January 18, 2019
 Powdery medallion lichen (Dirinaria applanata) in Lick Creek Park. College Station, Texas, January 9, 2019
 Green powdery lichen on yaupon holly in Lick Creek Park. College Station, Texas, January 18, 2019
 Close up of medallion lichen (Dirinaria confusa) in Lick Creek Park. College Station, Texas, January 6, 2019
 Powdery medallion lichen (Dirinaria applanata) in Lick Creek Park. College Station, Texas, January 18, 2019
 Common button lichen (Buellia stillingiana) on an oak in Lick Creek Park. College Station, Texas, January 18, 2019
 Powdery medallion lichen (Dirinaria applanata)(?) in Lick Creek Park. College Station, Texas, January 18, 2019
 Wrinkled loop lichen (Hypotrachyna livida) in Lick Creek Park. College Station, Texas, January 18, 2019
 White fringe lichen (Heterodermia albicans) on yaupon in Lick Creek Park. College Station, Texas, January 6, 2019
 Palm ruffle lichen (Parmotrema tinctorum) on yaupon in Lick Creek Park. College Station, Texas, January 6, 2019
 Powdery medallion lichen (Dirinaria applanata)(?) on a tree in Lick Creek Park. College Station, Texas, January 18, 2019
 White fringe lichen (Heterodermia albicans)(?) on yaupon in Lick Creek Park. College Station, Texas, January 18, 2019
 Medallion lichen (Dirinaria confusa) on yaupon holly in Lick Creek Park. College Station, Texas, January 18, 2019
 Wrinkled loop lichen (Hypotrachyna livida) on yaupon in Lick Creek Park. College Station, Texas, January 6, 2019
 Sunken bloodspot lichen (Haematomma persoonii) and Lecanora on oak 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
 Common button lichen (Buellia stillingiana) (black) in Lick Creek Park. College Station, Texas, January 18, 2019
 Close up of white fringe lichen (Heterodermia albicans) in Lick Creek Park. College Station, Texas, January 18, 2019
 White fringe lichen (Heterodermia albicans) on yaupon in Lick Creek Park. College Station, Texas, January 18, 2019
 Perforated ruffle lichen (Parmotrema perforatum) on a fallen oak twig in Lick Creek Park. College Station, Texas, January 22, 2019
 Bushy beard lichen (Usnea strigosa) on a fallen oak twig in Lick Creek Park. College Station, Texas, January 22, 2019
 Wrinkled loop lichen (Hypotrachyna livida) on yaupon holly in Lick Creek Park. College Station, Texas, January 18, 2019
 Flowering fringe lichen (Heterodermia echinata) on a fallen oak twig in Lick Creek Park. College Station, Texas, January 22, 2019
 Sunken bloodspot lichen (Haematomma persoonii) on river birch in Lick Creek Park. College Station, Texas, January 18, 2019
 Powdery medallion lichen (Dirinaria applanata)(?) on yaupon holly in Lick Creek Park. College Station, Texas, January 18, 2019
 Powdery medallion lichen (Dirinaria applanata) on yaupon holly in Lick Creek Park. College Station, Texas, January 18, 2019
 Script lichen (Graphis) on a thin trunk of Yaupon holly in Lick Creek Park. College Station, Texas, January 1, 2019
 Oak bark with white lichen in Lick Creek Park. College Station, Texas, December 11, 2020
 Underside of perforated ruffle lichen (Parmotrema perforatum) on a fallen oak twig in Lick Creek Park. College Station, Texas, January 22, 2019
 Close up of powdery medallion lichen (Dirinaria applanata)(?) on yaupon holly in Lick Creek Park. College Station, Texas, January 18, 2019
 Close up of perforated ruffle lichen (Parmotrema perforatum) on a fallen oak twig in Lick Creek Park. College Station, Texas, January 22, 2019
 Powdery medallion lichen (Dirinaria applanata) on a small hackberry tree in Lick Creek Park. College Station, Texas, January 9, 2019
 Palm ruffle lichen (Parmotrema tinctorum) on a thin trunk of Yaupon holly in Lick Creek Park. College Station, Texas, January 1, 2019
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