 Sign on a marble tombstone in Boonville Cemetery. Bryan, Texas, January 5, 2011
 Bible on a marble tombstone in Boonville Cemetery. Bryan, Texas, January 5, 2011
 Marble tombstone with golden lichen in Boonville Cemetery. Bryan, Texas, January 5, 2011
 Pyxine lichen on a marble tombstone in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Tombstone texture in Boonville Cemetery. Bryan, Texas, December 17, 2010
 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
 Cracked ruffle lichen (Parmotrema reticulatum, Rimelia reticulata) on a marble 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
 Fibrous texture of cedar tree bark in Boonville Cemetery. Bryan, Texas, November 14, 2012
 Calla flowers on a marble tombstone in City Cemetery. Bryan, Texas, December 30, 2012
 Bible on a tombstone in Boonville Cemetery. Bryan, Texas, December 17, 2010
 Boonville Cemetery in fog. Bryan, Texas, November 29, 2012
 Oaks of Boonville Cemetery in fog. Bryan, Texas, November 29, 2012
 Tombs of Boonville Cemetery in fog. Bryan, Texas, November 29, 2012
 Cedar trunk in Boonville Cemetery. Bryan, Texas, November 14, 2012
 Split oak bark in Boonville Cemetery. Bryan, Texas, November 14, 2012
 Bark of an oak tree in Boonville Cemetery. Bryan, Texas, November 14, 2012
 Dead oak tree No. 6 in Boonville Cemetery. Bryan, Texas, November 14, 2012
 Lichens on a marble tomb in Boonville Cemetery. Bryan, Texas, December 8, 2018
 Marble ivy with tendrils of a tomb in Boonville Cemetery. Bryan, Texas, December 8, 2009
 Rosette lichen (Physcia) on a granite tombstone in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Gnarl on cedar trunk in Boonville Cemetery. Bryan, Texas, November 14, 2012
 Cedar trunk joints in Boonville Cemetery. Bryan, Texas, November 14, 2012
 Base of a cedar trunk in Boonville Cemetery. Bryan, Texas, November 14, 2012
 Cedar tree trunk in Boonville Cemetery. Bryan, Texas, November 14, 2012
 Dead cedar tree in Boonville Cemetery. Bryan, Texas, November 14, 2012
 Skull shaped oak gnarl in Boonville Cemetery. Bryan, Texas, November 14, 2012
 Pattern of rosette lichen (Physcia) on a granite tombstone in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Healed damage to a cedar tree in Boonville Cemetery. Bryan, Texas, November 14, 2012
 Close up of powdered shadow lichen (Phaeophyscia hirsuta) on a tombstone in Boonville Cemetery. Bryan, Texas, January 27, 2019
 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
 Branch joining cedar tree trunk in Boonville Cemetery. Bryan, Texas, November 14, 2012
 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
 Sunken button lichen (Buellia spuria) on a marble tomb in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Headstone texture in Boonville Cemetery. Bryan, Texas, December 17, 2010
 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
 Powdered shadow lichen (Phaeophyscia hirsuta) with thorny apothecia on a marble tomb in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Handshake symbol with orange and green lichens on a marble tombstone in City Cemetery. Bryan, Texas, December 8, 2018
 Marble tombstone of Duntain (1853-1921) both in natural light and under 365 nm ultraviolet (UV-A) blacklight in City Cemetery. Bryan, Texas, October 24, 2024
 Marble tombstone of Hill(?) 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
 Handshake symbol on a marble tombstone 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
 Marble tombstone of Mary Koppe 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
 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
 Marble tombstone shaped as a tree trunk in Bryant Station Cemetery near Buckholts. Texas, December 1, 2012
 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
 Boonville Cemetery. Bryan, Texas, November 16, 2011
 Trees in Boonville Cemetery in fog. Bryan, Texas, November 13, 2008
 Oaks in Boonville Cemetery in fog. Bryan, Texas, November 13, 2008
 Tombs of Boonville Cemetery. Bryan, Texas, November 16, 2011
 Tombs and trees of Boonville Cemetery in fog. Bryan, Texas, November 13, 2008
 Lichens on a granite tombstone in City Cemetery. Bryan, Texas, December 15, 2012
 Petrified wood tombstone in City Cemetery. Bryan, Texas, December 30, 2012
 Mysterious tombstone marked by letters "S J" in City Cemetery. Bryan, Texas, December 15, 2012
 Remains of a marble child s statue in City Cemetery. Bryan, Texas, December 15, 2012
 Carved Holy Bible on a marble 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
 Handshake symbol on a marble tombstone when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Calvert Cemetery. Calvert, Texas, November 3, 2024
 Marble tombstone of Benjamin F. Ball (10/27/1852-6/30/1876) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Calvert Cemetery. Calvert, Texas, November 3, 2024
 Marble tombstone of Mary A. Calvert (10/22/1835-7/24/1881) both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Calvert Cemetery. Calvert, Texas, November 3, 2024
 Texture of crypt s door in City Cemetery. Bryan, Texas, December 15, 2012
 Old marble tombstone in Odd Fellow Cemetery. Anderson, Texas, December 31, 2009
 A marble tombstone in Saint Louis Cemetery No. 2. New Orleans, Louisiana, February 11, 2006
 Marble tombstone in Necropolis of Alexander Nevsky Lavra (Lazarevskoe Cemetery). Saint Petersburg, Russia, May 29, 2014
 Tombstones in Boonville Cemetery. Bryan, Texas, December 17, 2010
 Tomb in Boonville Cemetery. Bryan, Texas, December 8, 2009
 Tombs in Boonville Cemetery. Bryan, Texas, December 8, 2009
 A marble tombstone in Necropolis of Alexander Nevsky Lavra (Lazarevskoe Cemetery). Saint Petersburg, Russia, August 9, 2004
 Oak tree bark in Boonville Cemetery. Bryan, Texas, January 5, 2011
 Base of a tree in Boonville Cemetery. Bryan, Texas, December 17, 2010
 Tombs of M. C. and L. E. Steed in Boonville Cemetery. Bryan, Texas, December 8, 2009
 Rotten tree in Boonville Cemetery. Bryan, Texas, December 17, 2010
 Bark of an oak tree in Boonville Cemetery. Bryan, Texas, January 5, 2011
 Old rotten tree in Boonville Cemetery. Bryan, Texas, January 5, 2011
 Base of a tree in Boonville Cemetery. Bryan, Texas, January 5, 2011
 Powdered shadow lichen (Phaeophyscia hirsuta) on a marble tombstone in a city cemetery. College Station, Texas, February 6, 2019
 Bark of cedar tree in Boonville Cemetery. Bryan, Texas, December 17, 2010
 Iron fence of a tomb in Boonville Cemetery. Bryan, Texas, December 8, 2009
 Pyxine lichen on sandstone in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Details of an iron fence of a tomb in Boonville Cemetery. Bryan, Texas, December 8, 2009
 Tombs of Thomas and Martha Johnson in Boonville Cemetery. Bryan, Texas, December 8, 2009
 Detail of a marble tombstone in Calvert Cemetery. Calvert, Texas, December 13, 2009
 Marble tombstone in Washington Cemetery. Washington, Texas, January 26, 2013
 A marble tombstone of A. N. Esipova (1851 - 1914) in Necropolis (Tikhvin Cemetery) of Alexander Nevsky Lavra. Saint Petersburg, Russia, August 9, 2004
 Tomb of Thomas B. Johnson (1840 - 1902) in Boonville Cemetery. Bryan, Texas, July 13, 2008
 Rosette lichen (Physcia) on a fallen oak twig in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Fern and ivy leaves covered by lichens on a tomb in Boonville Cemetery. Bryan, Texas, December 8, 2018
 Rosette lichen (Physcia) on an iron fence in Boonville Cemetery. Bryan, Texas, January 27, 2019
 Tomb of Lee Silver with long-legged spider in Boonville Cemetery. Bryan, Texas, December 8, 2009
 Turkey vultures on a dry oak tree at sunrise in Lake Bryan Park. Bryan, Texas, October 31, 2012
 Handshake on a tombstone in City Cemetery. Bryan, Texas, January 6, 2013
 Green-blue rosette lichen (Physcia) on sandstone 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
 Tombstone near a cypress tree in City Cemetery. Bryan, Texas, August 4, 2013
 Rosette lichen (Physcia) with brown apothecia on a fallen oak branch in Boonville Cemetery. Bryan, Texas, January 27, 2019
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