 Sidewalk firedot lichen (Xanthocarpia feracissima, Caloplaca feracissima) on handshake symbol on a tomb in City Cemetery. Bryan, Texas, December 8, 2018
 Sidewalk firedot lichen (Xanthocarpia feracissima, Caloplaca feracissima) on a wet tombstone in Odd Fellow Cemetery. Anderson, Texas, December 31, 2018
 Sidewalk firedot lichen (Xanthocarpia feracissima, Caloplaca feracissima) on a wet tombstone with an inscription in Odd Fellow Cemetery. Anderson, Texas, December 31, 2018
 Sidewalk firedot lichen (Xanthocarpia feracissima, Caloplaca feracissima) around a decoration on a tombstone in Odd Fellow Cemetery. Anderson, Texas, December 31, 2018
 Sidewalk firedot lichen (Xanthocarpia feracissima, Caloplaca feracissima) on a granite tomb both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Odd Fellow Cemetery. Anderson, Texas, November 9, 2024
 Granite tombstone with sidewalk firedot lichen (Xanthocarpia feracissima, Caloplaca feracissima) both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Odd Fellow Cemetery. Anderson, Texas, November 9, 2024
 Sidewalk firedot lichen (Xanthocarpia feracissima, Caloplaca feracissima) on a tombstone when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Odd Fellow Cemetery. Anderson, Texas, November 9, 2024
 Sidewalk firedot lichen (Xanthocarpia feracissima) on a concrete path in ultraviolet light in Bee Creek Park. College Station, Texas, October 15, 2024
 Sidewalk firedot lichen (Xanthocarpia feracissima) in ultraviolet light on a concrete path in Bee Creek Park. College Station, Texas, August 19, 2024
 Sidewalk firedot (Xanthocarpia feracissima) with other crustose lichens in ultraviolet light on a concrete path in Lemontree Park. College Station, Texas, August 22, 2024
 Texture of sidewalk firedot (Xanthocarpia feracissima) with other crustose lichens in ultraviolet light on a concrete path in Lemontree Park. College Station, Texas, August 22, 2024
 Firedot lichen Caloplaca on a tomb in City Cemetery. Bryan, Texas, December 8, 2018
 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
 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) on a marble tomb in City Cemetery. Bryan, Texas, March 3, 2019
 Bare-bottomed sunburst lichen (Xanthomendoza weberi, Gallowayella weberi) on a marble tree in Boonville Cemetery. Bryan, Texas, December 8, 2018
 Lichens on a marble tomb in Boonville Cemetery. Bryan, Texas, December 8, 2018
 Firedot lichen Xanthocarpia crenulatella (Caloplaca crenulatella) on concrete enforcement of a sandy road in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
 Firedot lichen Xanthocarpia crenulatella (Caloplaca crenulatella) on brick and cement outer surface of a water cistern in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
 Peppered rock-shield lichen (Xanthoparmelia conspersa) and firedot lichen Caloplaca on a tomb in City Cemetery. Bryan, Texas, January 3, 2019
 Pyxine lichen on a marble tombstone in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Marble tombstone with golden lichen in Boonville Cemetery. Bryan, Texas, January 5, 2011
 Candleflame lichen Candelaria pacifica and another foliose lichen on a tomb in Boonville Cemetery. Bryan, Texas, December 8, 2018
 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
 Rosette lichen (Physcia) with apothecia on marble in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Small rosettes of Pyxine lichen on marble 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
 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
 Powdered shadow lichen (Phaeophyscia hirsuta) with apothecia on marble in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Firedot lichen (Caloplaca) and peppered rock-shield (Xanthoparmelia conspersa) on a tomb in City Cemetery. Bryan, Texas, January 17, 2023
 Pattern of rosette lichen (Physcia) on back of a grey marble tombstone 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
 Powdered shadow lichen (Phaeophyscia hirsuta) with apothecia on a marble tomb in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Marble ivy with tendrils of a tomb in Boonville Cemetery. Bryan, Texas, December 8, 2009
 Cracked ruffle lichen (Parmotrema reticulatum, Rimelia reticulata) on a marble tombstone 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
 Firedot lichen Caloplaca on a tomb of W. S. Minkert when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in City Cemetery. Bryan, Texas, October 24, 2024
 Tombstone of Herne(?) with firedot lichen Caloplaca when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in City Cemetery. Bryan, Texas, October 24, 2024
 Firedot lichen Squamulea squamosa (Caloplaca squamosa) in City Cemetery. Bryan, Texas, March 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
 Firedot lichen Caloplaca on a granite tombstone of Herne when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in City Cemetery. Bryan, Texas, October 24, 2024
 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
 Grey crustose lichen Aspicilia with firedot lichen Caloplaca on granite in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
 Grey crustose lichen Aspicilia with orange firedot lichen Caloplaca on granite in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
 Firedot lichen Caloplaca subsoluta (Squamulea subsoluta, Caloplaca irrubescens) on a granite tombstone in old Port Sullivan cemetery, west from Hearne. Texas, January 8, 2019
 Firedot lichen Xanthocarpia crenulatella (Caloplaca crenulatella) on erosion control stones in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
 Firedot lichen Xanthocarpia crenulatella (Caloplaca crenulatella) on a piece of petrified wood in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 4, 2021
 Firedot lichen (Caloplaca) in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
 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
 Texture of firedot lichen Xanthocarpia crenulatella (Caloplaca crenulatella) on a piece of petrified wood in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 4, 2021
 Close-up of firedot lichen Xanthocarpia crenulatella (Caloplaca crenulatella) on a piece of petrified wood in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 4, 2021
 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
 Firedot lichen Caloplaca on granite stone in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
 Texture of a marble tombstone at sunrise in Boonville Cemetery. Bryan, Texas, November 14, 2012
 Cracked lichen Acarospora novomexicana (yellow) and firedot lichen Fulgogasparrea appressa (Caloplaca appressa)(?) (red) on granite in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
 Golden moonglow lichen (Dimelaena oreina, greenish grey) and firedot lichen Fulgogasparrea appressa (Caloplaca appressa)(?) in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
 Detail of a tomb of a person who died in Boonville TX in 1875 in Boonville Cemetery. Bryan, Texas, December 8, 2009
 Tomb of Fordon Nfeoham(?) who died in Boonville TX in 1875 in Boonville Cemetery. Bryan, Texas, December 8, 2009
 Cracked lichen Acarospora novomexicana (yellow) and firedot lichen Fulgogasparrea appressa (Caloplaca appressa)(?) (red) on pink granite of Freshman Mountain in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
 Firedot lichen (Caloplaca) on a wooden bench in Antique Rose Emporium. Independence, Texas, March 17, 2022
 Large granite stone covered by cracked lichen Acarospora novomexicana (yellow) and firedot lichen Fulgogasparrea appressa (Caloplaca appressa)(?) (red) on Freshman Mountain in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
 Fern and ivy leaves covered by lichens on a tomb in Boonville Cemetery. Bryan, Texas, December 8, 2018
 Red firedot lichen Fulgogasparrea appressa (Caloplaca appressa)(?) on granite in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
 Firedot lichen Fulgogasparrea brouardii (Caloplaca brouardii)(?) with isidia in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
 Firedot lichen Fulgogasparrea brouardii (Caloplaca brouardii)(?) on granite stone in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
 Orange firedot lichen Fulgogasparrea appressa (Caloplaca appressa)(?) on granite in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
 Marble torso in City Cemetery. Bryan, Texas, December 18, 2018
 Isidious firedot lichen Fulgogasparrea brouardii (Caloplaca brouardii)(?) together with other crustose lichens in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
 Old marble angel on a tomb in City Cemetery. Bryan, Texas, December 8, 2018
 Tall marble tombs in City Cemetery. Bryan, Texas, December 18, 2018
 Handshake symbol on a marble tomb in City Cemetery. Bryan, Texas, December 8, 2018
 Tomb of Astin with a marble angel in City Cemetery. Bryan, Texas, December 18, 2018
 Firedot lichen Squamulea squamosa (Caloplaca squamosa) on a tomb in Independence Cemetery. Texas, March 26, 2024
 Marble cross on a tomb of Stiles Sims in City Cemetery. Bryan, Texas, December 18, 2018
 Close-up of firedot lichen Squamulea squamosa (Caloplaca squamosa) on a tomb in Independence Cemetery. Texas, March 26, 2024
 Pyxine lichen on sandstone in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Orange apothecia of firedot lichen Squamulea squamosa (Caloplaca squamosa) on a tomb in Independence Cemetery. Texas, March 26, 2024
 Headless marble statue with lichens on a child s tomb in City Cemetery. Bryan, Texas, December 8, 2018
 Marble child s head with black and green lichens in City Cemetery. Bryan, Texas, December 8, 2018
 Handshake symbol with orange and green lichens on a marble tombstone in City Cemetery. Bryan, Texas, December 8, 2018
 Caloplaca together with some grey lichen in City Cemetery. Bryan, Texas, March 3, 2019
 Rosette lichen (Physcia) on an iron fence 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 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
 Pattern of rosette lichen (Physcia) on a granite 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
 Some grey lichen together with Caloplaca on a granite tombstone in City Cemetery. Bryan, Texas, March 3, 2019
 Rosette lichen (Physcia) with brown apothecia on a fallen oak branch 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
 Close up of powdered shadow lichen (Phaeophyscia hirsuta) on a tombstone in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Texture of powdered shadow lichen (Phaeophyscia hirsuta) on a tombstone in Boonville Cemetery. Bryan, Texas, January 27, 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
 Tombs in Boonville Cemetery. Bryan, Texas, December 8, 2009
 Tomb in Boonville Cemetery. Bryan, Texas, December 8, 2009
 Tombstones in Boonville Cemetery. Bryan, Texas, December 17, 2010
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