 Medallion lichen (Dirinaria confusa) on hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Close up of medallion lichen (Dirinaria confusa) on an oak in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 12, 2019
 Close up of medallion lichen (Dirinaria confusa) on bark of a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
 Medallion lichen (Dirinaria confusa) 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
 Medallion lichen (Dirinaria confusa) on an oak in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 12, 2019
 Medallion lichen (Dirinaria confusa) on bark of a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
 Medallion lichen (Dirinaria confusa) with black apothecia in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Black apothecia of medallion lichen (Dirinaria confusa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Medallion lichen Dirinaria confusa on an oak in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 2, 2019
 Medallion lichen (Dirinaria confusa) on an oak(?) branch in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 2, 2019
 Medallion lichen Dirinaria confusa on a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 2, 2019
 Texture of medallion lichen Dirinaria confusa on an oak in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 2, 2019
 Medallion lichen Dirinaria confusa on an old tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 2, 2019
 Medallion lichen (Dirinaria confusa) on Liberty Oak in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 18, 2020
 Medallion lichen (Dirinaria confusa) on a branch of "Liberty Oak" in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Close up of medallion lichen (Dirinaria confusa) on a dry(?) trunk of a bush-like tree of huisache (Acacia minuata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
 Lichen Dirinaria confusa(?) on bark of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Medallion lichen (Dirinaria confusa) on one of trunks of a bush-like tree of huisache (Acacia minuata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
 Medallion lichen (Dirinaria confusa) on a dry(?) trunk of a bush-like tree of huisache (Acacia minuata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
 Powdery medallion lichen (Dirinaria applanata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Dirinaria(?) lichen on hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Dirinaria lichen with apothecia in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Small Dirinaria lichen in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Fringe lichen (Heterodermia) on hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Saucer lichen Ochrolechia pallescens on hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Smooth shadow-crust lichen (Hyperphyscia syncolla) on a hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 12, 2019
 White fringe lichen (Heterodermia albicans) (or may be H. japonica, H. casarettiana) on hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Olive patch of smooth shadow-crust lichen (Hyperphyscia syncolla) on a hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 12, 2019
 Close up of medallion lichen (Dirinaria confusa) in Lick Creek Park. College Station, Texas, January 6, 2019
 Close up of ruffle lichen Parmotrema submarginale on an oak branch in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 12, 2019
 Close up of fringe lichen (Heterodermia) on small cedar elm tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Close up of fringe lichen (Heterodermia) on acacia (huisache) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 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
 White fringe lichen (Heterodermia albicans) on a 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
 Tiny green liverwort and Graphis lichen 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
 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
 Close-up of white resupinate polypore mushroom on a fallen branch of hackberry(?) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 3, 2023
 Close-up of small patch of orangish resupinate polypore mushroom on a hackberry log in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 3, 2023
 Medallion lichen (Dirinaria confusa) on a hackberry(?) tree in Odd Fellow Cemetery. Anderson, Texas, December 31, 2018
 Close-up of witches butter jelly fungus (Exidia glandulosa) on a dry stem of a hackberry or pecan tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 3, 2023
 Medallion lichen (Dirinaria confusa) near the base of a hackberry(?) tree in Odd Fellow Cemetery. Anderson, Texas, December 31, 2018
 Lecanora lichen on hackberry(?) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 24, 2020
 Close up of slender orange bush lichen (Teloschistes exilis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 8, 2019
 Close up of Phaeophyscia lichen on a large huisache (acacia) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 2, 2019
 Medallion lichen (Dirinaria confusa) on yaupon in Lick Creek Park. College Station, Texas, January 6, 2019
 Script lichen (Graphis) on bark of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Close-up of some black and greenish scaly lichen on sandstone rocks in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 28, 2023
 Ruffle lichen Parmotrema submarginale on an oak in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 12, 2019
 Lichen Lecanora louisianae(?) on bark in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Fringe lichen (Heterodermia) on a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Medallion lichen (Dirinaria confusa) on yaupon holly in Lick Creek Park. College Station, Texas, January 18, 2019
 Common Button Lichen (Buellia stillingiana) on bark of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Script lichen Graphis lineola(?) on bark of a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Script lichen Graphis lineola on bark of a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
 Saucer lichen Ochrolechia pallescens on bark of a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
 Common button lichen (Buellia stillingiana) on hackberry(?) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 24, 2020
 Fringe lichen (Heterodermia) on a small tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Sunken bloodspot lichen (Haematomma persoonii) on an oak in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 12, 2019
 Medallion lichen (Dirinaria confusa) with large black apothecia near the base of a hackberry(?) tree in Odd Fellow Cemetery. Anderson, Texas, December 31, 2018
 Leaves of hackberry tree with Asian woolly hackberry aphids Shivaphis celti (Homoptera: Aphididae) and sooty black mold (fungal growth) in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 5, 2019
 Lichen Lecanora louisianae(?) on acacia (huisache) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 White fringe lichen (Heterodermia albicans) on bark of a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Sunken bloodspot lichen (Haematomma persoonii) on bark of a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
 Close-up of texture of lichens on bark of hackberry (Celtis laevigata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Fringe lichen (Heterodermia albicans(?)) on acacia (huisache) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Perforated ruffle lichen (Parmotrema perforatum) on a fallen oak twig in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 12, 2019
 Heterodermia albicans or may be H. casarettiana lichen on acacia (huisache) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Firedot lichen (Caloplaca) on stones for road erosion control in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Apothecia of slender orange bush lichen (Teloschistes exilis) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Tuft of slender orange bush lichen (Teloschistes exilis) on an oak in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Texture of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 8, 2012
 Script lichen Graphis lineola and other crustose lichens on bark of a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
 Common button lichen (Buellia stillingiana) (black) together with Lecanora on hackberry(?) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 24, 2020
 Shoot of hackberry (Celtis laevigata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 17, 2019
 A twig of hackberry tree with fruits in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Dead tree of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 8, 2012
 Peeling bark of dry hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 8, 2012
 Rotten hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 8, 2012
 Trunk of dead hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 8, 2012
 Drying hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 8, 2012
 Slender orange bush lichen (Teloschistes exilis) on a thin oak branch in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Peeling bark of dead hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 8, 2012
 Texture of dried hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 8, 2012
 Trunk of dried hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 8, 2012
 Warty texture of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 8, 2012
 Warts on the bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 8, 2012
 Close-up of brittle cinder fungus (Kretzschmaria deusta) at the base of a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, June 6, 2021
 Slender orange bush lichen (Teloschistes exilis) on a small oak in semiopen area in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Some green liverwort and lichens on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Tiny green liverwort on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Warts on bark of hackberry (Celtis laevigata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 3, 2010.
 Texture of some corticioid fungus on a hardwood log (may be elm or hackberry) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 3, 2023
 Close up of medallion lichen (Dirinaria confusa) on a tree in Odd Fellow Cemetery. Anderson, Texas, December 31, 2018
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