 Bluebonnets on a tomb of James Burford Viskers in Independence Cemetery. Texas, April 14, 2010
 Marble baby angel on a tomb of Holly Robert Volle (2/15/1882-2/20/1894) in ultraviolet light in Calvert Cemetery. Calvert, Texas, November 3, 2024
 Children s tomb with bluebonnets in Historic Independence Cemetery near Independence. Texas, March 31, 2019
 Firedot lichen Squamulea squamosa (Caloplaca squamosa) on a tomb in Independence Cemetery. Texas, March 26, 2024
 Close-up of firedot lichen Squamulea squamosa (Caloplaca squamosa) on a tomb in Independence Cemetery. Texas, March 26, 2024
 Orange apothecia of firedot lichen Squamulea squamosa (Caloplaca squamosa) on a tomb in Independence Cemetery. Texas, March 26, 2024
 Marble angel on a tomb of Holly Robert in the city cemetery in Calvert. Texas, July 24, 2022
 Tomb of Holly Robert (1882) with a marble angel in the city cemetery in Calvert. Texas, July 24, 2022
 Angel on a tomb of Holly Robert in Calvert cemetery. Calvert, Texas, January 19, 2008
 Marble angel on a tomb of Holly Robert in Calvert Cemetery. Calvert, Texas, May 9, 2012
 An angel on a tomb of Holly Robert in Calvert cemetery. Calvert, Texas, January 28, 2007
 A greenish angel on a tomb of Holly Robert in Calvert cemetery. Calvert, Texas, May 28, 2007
 Marble angel on a tomb of Holly Robert in Calvert Cemetery. Calvert, Texas, December 13, 2009
 Button lichen (Buellia) on a limestone tomb in Old Independence Cemetery near Independence. Texas, February 10, 2019
 Field of bluebonnet in Old Baylor Park. Independence, Texas, March 20, 2019
 Small bluebonnet (Lupinus) in Old Baylor Park. Independence, Texas, March 15, 2021
 Flowers of bluebonnet (Lupinus) in Old Baylor Park. Independence, Texas, March 15, 2021
 Bluebonnet (Lupinus) and paintbrush in Old Baylor Park. Independence, Texas, March 20, 2019
 Flowers of bluebonnet (Lupinus) in Old Baylor Park. Independence, Texas, March 13, 2020
 Bluebonnet (Lupinus) and paintbrush flowers in Old Baylor Park. Independence, Texas, March 20, 2019
 Indian paintbrush and bluebonnet (Lupinus) in Old Baylor Park. Independence, Texas, March 13, 2020
 Roadside flowers of bluebonnet (Lupinus) in Old Baylor Park. Independence, Texas, March 13, 2020
 Taking pictures of bluebonnet flowers in Old Bailor park. Independence, Texas, March 21, 2009
 Painting "Leaky Ride for Dr. Leakey" by James Rosenquist in San Francisco Museum of Modern Art. San Francisco, California, March 18, 2024
 Plant of bluebonnet (Lupinus) on sandy soil in Old Baylor Park. Independence, Texas, March 2, 2020
 Indian paintbrush and bluebonnet (Lupinus) near a water well in Old Baylor Park. Independence, Texas, March 13, 2020
 Masses of bluebonnet (Lupinus) flowers on roadside in Old Baylor Park. Independence, Texas, March 13, 2020
 Bluebonnets and cows in Historic Independence Cemetery near Independence. Texas, March 31, 2019
 Tombs and oaks in Historic Independence Cemetery near Independence. Texas, March 31, 2019
 Paintbrush flowers in Historic Independence Cemetery near Independence. Texas, March 31, 2019
 Old tombs in Historic Independence Cemetery near Independence. Texas, March 31, 2019
 Old tombs with paintbrush flowers in Historic Independence Cemetery near Independence. Texas, March 31, 2019
 Marble and granite tombs in Historic Independence Cemetery near Independence. Texas, March 31, 2019
 Old tombs with blooming paintbrush in Historic Independence Cemetery near Independence. Texas, March 31, 2019
 Roadside flowers of bluebonnet (Lupinus) and exposed rocks in Old Baylor Park. Independence, Texas, March 13, 2020
 Small bluebonnet (Lupinus) of a roadside sandstone outcrop in Old Baylor Park. Independence, Texas, March 15, 2021
 Robert Dollar Gallery of fine arts in Legion of Honor Museum in San Francisco. California, March 14, 2024
 Field of bluebonnet and paintbrush near Road 50 north from Prairie Hill Road, south from Independence. Texas, March 22, 2008
 Painting "Ham" by Robert Colescott (1999) in San Francisco Museum of Modern Art. San Francisco, California, March 18, 2024
 An angel on a tomb of G. V. del Corral, with a tower of M.C.A. tomb in background, in Metairie Cemetery. New Orleans, Louisiana, May 7, 2006
 Two snakes with a cup on a tomb in Smolenskoe Lutheran Cemetery on Dekabristov Island. Saint Petersburg, Russia, August 12, 2024
 Decorations of a children s tomb both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Odd Fellow Cemetery. Anderson, Texas, November 9, 2024
 Granite tomb with fluorescent crustose lichens in ultraviolet light in City Cemetery. Bryan, Texas, October 24, 2024
 Compact tomb of Neil both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Odd Fellow Cemetery. Anderson, Texas, November 9, 2024
 A tomb of Lafayette Cemetery. New Orleans, Louisiana, March 10, 2005.
 Granite tomb of Campbell with lichens both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Odd Fellow Cemetery. Anderson, Texas, November 9, 2024
 Marble tomb of George Pennington both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Odd Fellow Cemetery. Anderson, Texas, November 9, 2024
 Marble tomb of George Moore both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Odd Fellow Cemetery. Anderson, Texas, November 9, 2024
 Tomb of Gullied with crustose lichens both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Odd Fellow Cemetery. Anderson, Texas, November 9, 2024
 Tomb of M. Derde 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
 Sculpture "Smorgi-Bob, the Cook" by Robert Carston Arneson (1971) in San Francisco Museum of Modern Art. San Francisco, California, March 18, 2024
 A tomb of Vonderbank in Metairie Cemetery. New Orleans, Louisiana, March 26, 2006
 Tomb of William 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
 Tomb of Rachel Moore 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
 Child s tomb of Alice 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
 Marble angel over a tomb 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 tomb of W. Jeter both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Odd Fellow Cemetery. Anderson, Texas, November 9, 2024
 Blue tomb in Masonic Cemetery. Chappell Hill, Texas, March 17, 2019
 Tomb of Emil von S. Holtz (1841-1913) in Smolenskoe Lutheran Cemetery on Dekabristov Island. Saint Petersburg, Russia, August 12, 2024
 Tomb of David Landbaum (1780-1849) in Smolenskoe Lutheran Cemetery on Dekabristov Island. Saint Petersburg, Russia, August 12, 2024
 Lamb symbol on a child s tomb 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
 Physcia(?) lichen 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
 Houston Meadow-rue (Thalictrum texanum) on a tomb in Washington Cemetery. Washington, Texas, January 7, 2024
 A lion supporting an emblem on a rusty iron tomb in Smolenskoe Lutheran Cemetery on Dekabristov Island. Saint Petersburg, Russia, August 12, 2024
 A large tree enveloping an iron tomb fence in Smolenskoe Lutheran Cemetery on Dekabristov Island. Saint Petersburg, Russia, August 12, 2024
 Tomb of Carl Ferdinand Spiecel (1810-1894) in Smolenskoe Lutheran Cemetery on Dekabristov Island. Saint Petersburg, Russia, August 12, 2024
 Iron tomb with an emblem supported by a horse and a lion in Smolenskoe Lutheran Cemetery on Dekabristov Island. Saint Petersburg, Russia, August 12, 2024
 Broken granite stone on a large damaged tomb in Smolenskoe Lutheran Cemetery on Dekabristov Island. Saint Petersburg, Russia, August 12, 2024
 Tomb of Mariya Petrovna Afanasyeva (died in 1903) in Smolenskoe Lutheran Cemetery on Dekabristov Island. Saint Petersburg, Russia, August 12, 2024
 Bluebonnet and painbrush flowers on Farm-to-Market Road near Apolonia, Grimes County. Texas, March 27, 2024
 Granite tomb of Moor(?) with crustose lichens 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
 Carved lamb symbol on a child s tomb of E. W. 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
 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
 Marble tomb of Belle (1809-1893) 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
 Rosette lichen (Physcia) on a marble tomb in City Cemetery. Bryan, Texas, March 3, 2019
 Handshake symbol on a tomb both in natural light and under 365 nm ultraviolet (UV-A) blacklight in Calvert Cemetery. Calvert, Texas, November 3, 2024
 Large damaged granite tomb of unknown person on 19-th section in Smolenskoe Lutheran Cemetery on Dekabristov Island. Saint Petersburg, Russia, August 12, 2024
 Large pink tomb of Wilhelm Schaub (1861-1934) in Smolenskoe Lutheran Cemetery on Dekabristov Island. Saint Petersburg, Russia, August 12, 2024
 Septarian nodule-like texture of back of a black granite tomb in Smolenskoe Lutheran Cemetery on Dekabristov Island. Saint Petersburg, Russia, August 12, 2024
 Granite tomb of Bertha Maria Pallisen (died in 1864) in Smolenskoe Lutheran Cemetery on Dekabristov Island. Saint Petersburg, Russia, August 12, 2024
 Tomb of soldier(?) Korabliov Nikolay Vasilyevich (1897-1942) in Smolenskoe Lutheran Cemetery on Dekabristov Island. Saint Petersburg, Russia, August 12, 2024
 Bluebonnet, painbrush and some yellow flowers on Farm-to-Market Road near Apolonia, Grimes County. Texas, March 27, 2024
 Bluebonnet (Lupinus) flowers on a roadside of Farm-to-Market Road near Apolonia, Grimes County. Texas, March 27, 2024
 Paper flowers and scarecrows in front of a granite tomb 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
 Fluorescent lichens on a cast iron fence of a tomb 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
 A tomb of Hiram Lodge No. 70.F. and A. M. in Masonic Cemetery near Conti Street. New Orleans, Louisiana, March 13, 2005.
 Powdered shadow lichen (Phaeophyscia hirsuta) on a tomb 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) with apothecia on a marble tomb in City Cemetery. Bryan, Texas, March 3, 2019
 Tomb of general-mayor David Timofeevich Hesketh (1819-1871) in Smolenskoe Lutheran Cemetery on Dekabristov Island. Saint Petersburg, Russia, August 12, 2024
 Young angel on a tomb 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
 Cypress branch with lichens of a cast iron fence of a tomb 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
 Crustose lichen with bright orange fluorescence on a granite tomb 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
 Round patches of crustose lichen with bright orange fluorescence 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
 Painting "Collection (Combine painting)" by Robert Rauschenberg (1954-1955) in San Francisco Museum of Modern Art. San Francisco, California, March 18, 2024
 Peppered rock-shield lichen (Xanthoparmelia conspersa) on a tomb in City Cemetery. Bryan, Texas, March 3, 2019
 A tomb of Charles T. Howard (one of cemetery s founders) in Metairie Cemetery. New Orleans, Louisiana, February 12, 2006
 Tomb of Geo Couter (12/31/1839-12/26/1873) 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
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