 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
 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
 White fringe lichen (Heterodermia albicans) on bark of a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 White fringe lichen (Heterodermia albicans) on a branch of an old Huisache (acacia) bush in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 White fringe lichen (Heterodermia albicans) and liverwort on a branch of an old Huisache (acacia) bush in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Fringe lichen (Heterodermia albicans(?)) on acacia (huisache) tree 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
 Fringe lichen (Heterodermia) on a tree 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, February 2, 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
 Fringe lichen (Heterodermia) on a small tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 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
 Texture of fringe lichen (Heterodermia) 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
 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
 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
 Saucer lichen Ochrolechia pallescens 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
 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
 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
 Medallion lichen (Dirinaria confusa) on bark of a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
 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
 Sunken bloodspot lichen (Haematomma persoonii) on bark of a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
 A twig of hackberry tree with fruits in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 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
 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
 Pyxine(?) and white fringe lichen (Heterodermia albicans) on a hackberry tree at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 26, 2020
 White fringe lichen (Heterodermia albicans) on a tree on Kiwanis Nature Trail, College Station, Texas, February 26, 2019
 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
 Lecanora lichen on hackberry(?) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 24, 2020
 Dirinaria(?) lichen on hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Saucer lichen Ochrolechia on a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Script lichen (Graphis) on a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Ruffle lichen (Parmotrema) on a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 White fringe lichen (Heterodermia albicans) on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 White fringe lichen (Heterodermia albicans) on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
 Saucer lichen Ochrolechia pallescens on hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Medallion lichen (Dirinaria confusa) on hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Script lichen Graphis lineola(?) on bark of a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Common button lichen (Buellia stillingiana) on hackberry(?) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 24, 2020
 Close up of medallion lichen (Dirinaria confusa) on hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Common button lichen (Buellia stillingiana) on a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 White fringe lichen (Heterodermia albicans) on a tree, may be on magnolia, in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
 White fringe lichen (Heterodermia albicans) with brown apothecia on a yaupon(?) tree in Lick Creek Park. College Station, Texas, February 20, 2019
 Smooth shadow-crust lichen (Hyperphyscia syncolla) on a hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 12, 2019
 Slender orange bush lichen (Teloschistes exilis) on a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 8, 2019
 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
 Trunk of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 30, 2010
 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
 Slender orange bush lichen (Teloschistes exilis) on a small elm tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 8, 2019
 Scar of a trunk of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 30, 2010
 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
 Slender orange bush lichen (Teloschistes exilis) on a twig of a small tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 White fringe lichen (Heterodermia albicans) on a tree on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, March 1, 2019
 White fringe lichen (Heterodermia albicans) on a tree on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, February 9, 2019
 White fringe lichen (Heterodermia albicans) on a tree on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, February 9, 2019
 Mixed crustose lichens on bark of a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
 Slender orange bush lichen (Teloschistes exilis) and striped ramalina lichen (Ramalina montagnei) on a small elm tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 8, 2019
 White fringe lichen (Heterodermia albicans) on bark of a tree on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, February 9, 2019
 White fringe lichen (Heterodermia albicans) on a tree on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, March 2, 2019
 White fringe lichen (Heterodermia albicans) on a tree on Alligator Branch section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, February 17, 2019
 Close up of white fringe lichen (Heterodermia albicans) on bark of a tree on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, February 9, 2019
 Striped ramalina lichen (Ramalina montagnei) on a small elm tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 8, 2019
 Sunburst lichen Xanthomendoza weberi (Gallowayella weberi) on a twig of a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 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
 White fringe lichen (Heterodermia albicans) on a tree (may be juniper) in McKinney Roughs Nature Park near Austin. Texas, March 17, 2021
 White fringe lichen (Heterodermia albicans) on yaupon in Lick Creek Park. College Station, Texas, January 6, 2019
 White fringe lichen (Heterodermia albicans) on yaupon 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
 Medallion lichen Dirinaria confusa on an old tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 2, 2019
 Saucer lichen Ochrolechia pallescens on a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 27, 2019
 Medallion lichen Dirinaria confusa on a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 2, 2019
 Lichen Dirinaria confusa(?) on bark of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 Script lichen (Graphis) on bark of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 White fringe lichen (Heterodermia albicans) on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 19, 2020
 Phaeophyscia lichen on a large huisache (acacia) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 2, 2019
 Lichen Lecanora louisianae(?) on acacia (huisache) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Sunken bloodspot lichen (Haematomma persoonii) on a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 27, 2019
 Pale brown Lecanora lichen in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 8, 2019
 Dust lichen (Lepraria) on oak bark 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
 Octopus-like palmetto lichen (Ramalina celastri) in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 8, 2019
 Warty lichen (Pertusaria) on a branch of "Liberty Oak" in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
 Drying hackberry tree 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
 Dead tree of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 8, 2012
 Common Button Lichen (Buellia stillingiana) on bark of hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
 White fringe lichen (Heterodermia albicans) on tree bark on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest near Huntsville. Texas, March 2, 2019
 Texture of dried 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
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