 Rosette lichen (Physcia) with brown apothecia on a fallen oak branch in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Rosette lichen (Physcia) with dense brown apothecia on a fallen oak branch in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Rosette lichen (Physcia) on back of a grey marble tombstone in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Pattern of rosette lichen (Physcia) on back of a grey marble tombstone in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Rosette lichen (Physcia) with apothecia on a marble tomb in City Cemetery. Bryan, Texas, March 3, 2019
 Powdered shadow lichen (Phaeophyscia hirsuta) with apothecia on marble in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Powdered shadow lichen (Phaeophyscia hirsuta) with apothecia on a marble tomb in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Rosette lichen (Physcia) on a granite tombstone in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Rosette lichen (Physcia) on a fallen oak twig in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Rosette lichen (Physcia) on an iron fence in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Powdered shadow lichen (Phaeophyscia hirsuta) with thorny apothecia on a marble tomb in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Pattern of rosette lichen (Physcia) on a granite tombstone in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Green-blue rosette lichen (Physcia) on sandstone in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Rosette lichen (Physcia) on an old dry cracked stump of a red cedar tree in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Rosette lichen (Physcia) on a marble tomb in City Cemetery. Bryan, Texas, March 3, 2019
 Rosette lichen Physcia dimidiata(?) on a leg of a marble angel in City Cemetery. Bryan, Texas, March 3, 2019
 Close up of rosette lichen (Physcia) on a marble tomb in City Cemetery. Bryan, Texas, March 3, 2019
 Rosette lichen Physcia dimidiata(?) on a marble angel in City Cemetery. Bryan, Texas, March 3, 2019
 Pyxine lichen on a marble tombstone in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Small rosettes of Pyxine lichen on marble in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Sunken button lichen (Buellia spuria) on a marble tomb in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Powdered shadow lichen (Phaeophyscia hirsuta) on a marble tomb in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Pattern of powdered shadow lichen (Phaeophyscia hirsuta) on a marble tomb in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Cracked ruffle lichen (Parmotrema reticulatum, Rimelia reticulata) on a marble tombstone in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Small rosette of Pyxine lichen on an iron fence in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Marble tombstone with golden lichen in Boonville Cemetery. Bryan, Texas, January 5, 2011
 Physcia(?) lichen on a marble tomb in City Cemetery. Bryan, Texas, March 3, 2019
 Rosette lichen Physcia dimidiata(?) on a marble tomb in Ebenezer Cemetery near Huntsville, Texas, February 17, 2019
 Powdered shadow lichen (Phaeophyscia hirsuta) with apothecia on a marble tomb in City Cemetery. Bryan, Texas, March 3, 2019
 Rosette lichen (Physcia) on a tomb in City Cemetery. Bryan, Texas, March 3, 2019
 Brown apothecia of spotted rosette lichen (Physcia pumilior(?)) on a tombstone in Old Independence Cemetery near Independence. Texas, February 10, 2019
 Spotted rosette lichen (Physcia pumilior(?)) with brown apothecia on a tombstone in Old Independence Cemetery near Independence. Texas, February 10, 2019
 Pyxine lichen on sandstone in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Bible on a marble tombstone in Boonville Cemetery. Bryan, Texas, January 5, 2011
 Sign on a marble tombstone in Boonville Cemetery. Bryan, Texas, January 5, 2011
 Texture of powdered shadow lichen (Phaeophyscia hirsuta) on a tombstone in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Close up of powdered shadow lichen (Phaeophyscia hirsuta) on a tombstone in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Hoary rosette lichen Physcia aipolia with apothecia on a fallen aspen tree near Kuzmolovo, north from Saint Petersburg. Russia, May 8, 2019
 Apothecia of hoary rosette lichen Physcia aipolia on a fallen aspen tree near Kuzmolovo, north from Saint Petersburg. Russia, May 8, 2019
 Smooth shadow-crust lichen (Hyperphyscia syncolla) and rosette lichen (Physcia) on lower branches of old acacia (huisache) between Signature Park 11 apartments and Oil Well near Park Hudson Trail. Bryan, Texas, January 27, 2019
 Pepper-spore lichen (Rinodina) (pale blue-grey) between other lichens on an old tomb in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Sidewalk firedot lichen (Xanthocarpia feracissima, Caloplaca feracissima) on a marble rose in Boonville Cemetery. Bryan, Texas, December 8, 2018
 Bare-bottomed sunburst lichen (Xanthomendoza weberi, Gallowayella weberi) on a marble tree in Boonville Cemetery. Bryan, Texas, December 8, 2018
 Rosette lichen (Physcia) on lower branches of old acacia (huisache) between Signature Park 11 apartments and Oil Well near Park Hudson Trail. Bryan, Texas, January 27, 2019
 Small rosette lichen (Physcia) on lower branches of old acacia (huisache) between Signature Park 11 apartments and Oil Well near Park Hudson Trail. Bryan, Texas, January 27, 2019
 Apothecia of rosette lichen (Physcia) on sandstone of Lost Pines Overlook in Bastrop State Park. Bastrop, Texas, January 21, 2023
 Bare-bottomed sunburst lichen (Xanthomendoza weberi, Gallowayella weberi) on old iron(?) in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Firedot lichen Squamulea squamosa (Caloplaca squamosa) on a horizontal surface of a tomb in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Frosted rosette lichen (Physcia biziana) on tomb in cemetery at Mission de Cristo Jesus Church at road 259 in Port Sullivan, west from Hearne. Texas, January 8, 2019
 Details of firedot lichen Squamulea squamosa (Caloplaca squamosa) on a horizontal surface of a tomb in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Firedot lichen Squamulea squamosa (Caloplaca squamosa) covering a horizontal surface of a tomb in Boonville Cemetery. Bryan, Texas, January 27, 2019
 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
 Frosted rosette lichen (Physcia biziana) on a brick surface in cemetery at Mission de Cristo Jesus Church at road 259 in Port Sullivan, west from Hearne. Texas, January 8, 2019
 Frosted rosette lichen (Physcia biziana) on a brick shrine in cemetery at Mission de Cristo Jesus Church at road 259 in Port Sullivan, west from Hearne. Texas, January 8, 2019
 Rosette lichen (Physcia) in Ebenezer Cemetery near Huntsville, Texas, February 17, 2019
 Frosted rosette lichen (Physcia biziana) with pruina on an oak in open area in cemetery at Mission de Cristo Jesus Church at road 259 in Port Sullivan, west from Hearne. Texas, January 8, 2019
 Frosted rosette lichen (Physcia biziana) on oak bark in open area in cemetery at Mission de Cristo Jesus Church at road 259 in Port Sullivan, west from Hearne. Texas, January 8, 2019
 Rosette lichen (Physcia) on a tomb in Ebenezer Cemetery near Huntsville, Texas, February 17, 2019
 Spotted rosette lichen (Physcia pumilior) with brown apothecia on a huisache(?) tree in abandoned TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, February 22, 2019
 Rosette lichen (Physcia) with soredia on a tomb in Ebenezer Cemetery near Huntsville, Texas, February 17, 2019
 Marble ivy with tendrils of a tomb in Boonville Cemetery. Bryan, Texas, December 8, 2009
 Lichens on a marble tomb in Boonville Cemetery. Bryan, Texas, December 8, 2018
 Rosette lichen (Physcia) and sunburst lichen Xanthomendoza weberi (Gallowayella weberi) on a tomb in Ebenezer Cemetery near Huntsville, Texas, February 17, 2019
 Texture of a marble tombstone at sunrise in Boonville Cemetery. Bryan, Texas, November 14, 2012
 Some grey lichen with black apothecia on a granite tombstone in City Cemetery. Bryan, Texas, March 3, 2019
 Close up of some grey lichen with black apothecia on a granite tombstone in City Cemetery. Bryan, Texas, March 3, 2019
 Apothecia of peppered rock-shield lichen (Xanthoparmelia conspersa) on a granite tomb in City Cemetery. Bryan, Texas, March 3, 2019
 Rosette lichen (Physcia) on a tombstone in Old Independence Cemetery near Independence. Texas, February 10, 2019
 Spotted rosette lichen (Physcia pumilior(?)) on a tombstone in Old Independence Cemetery near Independence. Texas, February 10, 2019
 Candleflame lichen Candelaria pacifica and another foliose lichen on a tomb in Boonville Cemetery. Bryan, Texas, December 8, 2018
 Apothecia of rosette lichen (Physcia) on sandstone of Lost Pines Overlook in Bastrop State Park. Bastrop, Texas, February 28, 2021
 Rosette lichen (Physcia) with apothecia on sandstone of Lost Pines Overlook in Bastrop State Park. Bastrop, Texas, February 28, 2021
 Black apothecia of rosette lichen (Physcia) on sandstone of Lost Pines Overlook in Bastrop State Park. Bastrop, Texas, February 28, 2021
 Streaked rosette lichen (Physcia atrostriata) in Lick Creek Park. College Station, Texas, January 18, 2019
 Sunburst lichen Xanthomendoza weberi (Gallowayella weberi) together with Physcia on a tomb in City Cemetery. Bryan, Texas, March 3, 2019
 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
 Firedot lichen Squamulea squamosa (Caloplaca squamosa) on a marble tomb in City Cemetery. Bryan, Texas, March 3, 2019
 Black-faced marble angel on a tomb of Astin in City Cemetery. Bryan, Texas, January 3, 2019
 Rosette lichen (Physcia) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, January 26, 2019
 Rosette lichen (Physcia) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, January 26, 2019
 Close up of Physcia lichen with brown apothecia 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
 Bare-bottomed sunburst lichen (Xanthomendoza weberi, Gallowayella weberi) and another foliose lichen on a tomb in Boonville Cemetery. Bryan, Texas, December 8, 2018
 Physcia lichen with brown apothecia on yaupon holly or may be on oak in Lick Creek Park. College Station, Texas, February 3, 2019
 Streaked rosette lichen (Physcia atrostriata) on an oak on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, January 26, 2019
 Tomb of Fordon Nfeoham(?) who died in Boonville TX in 1875 in Boonville Cemetery. Bryan, Texas, December 8, 2009
 Detail of a tomb of a person who died in Boonville TX in 1875 in Boonville Cemetery. Bryan, Texas, December 8, 2009
 Heterodermia and streaked rosette lichen (Physcia atrostriata) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, January 26, 2019
 Streaked rosette lichen (Physcia atrostriata) on oak bark on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, January 26, 2019
 Heterodermia and streaked rosette lichen (Physcia atrostriata) on oak bark on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, January 26, 2019
 Peppered rock-shield lichen (Xanthoparmelia conspersa) and firedot lichen Caloplaca on a tomb in City Cemetery. Bryan, Texas, January 3, 2019
 Bark of an oak tree in Boonville Cemetery. Bryan, Texas, January 5, 2011
 Old rotten tree in Boonville Cemetery. Bryan, Texas, January 5, 2011
 Oak tree bark in Boonville Cemetery. Bryan, Texas, January 5, 2011
 Base of a tree in Boonville Cemetery. Bryan, Texas, January 5, 2011
 Smooth shadow-crust lichen (Hyperphyscia syncolla) with brown apothecia on lower branches of old acacia (huisache) between Signature Park 11 apartments and Oil Well near Park Hudson Trail. Bryan, Texas, January 27, 2019
 Some pale green crustose lichen on a marble tomb in Washington Cemetery. Washington, Texas, January 12, 2019
 Rosette lichen (Physcia) on a tree on Kiwanis Nature Trail, College Station, Texas, February 26, 2019
 Rosette lichen (Physcia) on concrete remains near the columns in Old Bailor park. Independence, Texas, February 27, 2019
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