![](../../pictures/archives/compress/2019/2439/jpeg/17t.jpg) Pattern of rosette lichen (Physcia) on a granite tombstone in Boonville Cemetery. Bryan, Texas, January 27, 2019
![](../../pictures/archives/compress/2019/2439/jpeg/04t.jpg) Rosette lichen (Physcia) on back of a grey marble tombstone in Boonville Cemetery. Bryan, Texas, January 27, 2019
![](../../pictures/archives/compress/2019/2439/jpeg/05t.jpg) Pattern of rosette lichen (Physcia) on back of a grey marble tombstone in Boonville Cemetery. Bryan, Texas, January 27, 2019
![](../../pictures/archives/compress/2019/2439/jpeg/01t.jpg) Rosette lichen (Physcia) on a fallen oak twig in Boonville Cemetery. Bryan, Texas, January 27, 2019
![](../../pictures/archives/compress/2019/2439/jpeg/12t.jpg) Rosette lichen (Physcia) on an iron fence in Boonville Cemetery. Bryan, Texas, January 27, 2019
![](../../pictures/archives/compress/2019/2439/jpeg/27t.jpg) Rosette lichen (Physcia) with apothecia on marble in Boonville Cemetery. Bryan, Texas, January 27, 2019
![](../../pictures/archives/compress/2019/2439/jpeg/19t.jpg) Green-blue rosette lichen (Physcia) on sandstone in Boonville Cemetery. Bryan, Texas, January 27, 2019
![](../../pictures/archives/compress/2019/2439/jpeg/02t.jpg) Rosette lichen (Physcia) with brown apothecia on a fallen oak branch in Boonville Cemetery. Bryan, Texas, January 27, 2019
![](../../pictures/archives/compress/2019/2439/jpeg/15t.jpg) Rosette lichen (Physcia) on an old dry cracked stump of a red cedar tree in Boonville Cemetery. Bryan, Texas, January 27, 2019
![](../../pictures/archives/compress/2019/2439/jpeg/03t.jpg) Rosette lichen (Physcia) with dense brown apothecia on a fallen oak branch in Boonville Cemetery. Bryan, Texas, January 27, 2019
![](../../pictures/archives/compress/2019/2439/jpeg/09t.jpg) Pyxine lichen on a marble tombstone in Boonville Cemetery. Bryan, Texas, January 27, 2019
![](../../pictures/archives/compress/2019/2439/jpeg/13t.jpg) Texture of powdered shadow lichen (Phaeophyscia hirsuta) on a tombstone in Boonville Cemetery. Bryan, Texas, January 27, 2019
![](../../pictures/archives/compress/2019/2439/jpeg/14t.jpg) Close up of powdered shadow lichen (Phaeophyscia hirsuta) on a tombstone in Boonville Cemetery. Bryan, Texas, January 27, 2019
![](../../pictures/archives/compress/2019/2439/jpeg/18t.jpg) Cracked ruffle lichen (Parmotrema reticulatum, Rimelia reticulata) on a marble tombstone in Boonville Cemetery. Bryan, Texas, January 27, 2019
![](../../pictures/archives/compress/2019/2439/jpeg/06t.jpg) Small rosette of Pyxine lichen on an iron fence in Boonville Cemetery. Bryan, Texas, January 27, 2019
![](../../pictures/archives/compress/2011/906/jpeg/09t.jpg) Marble tombstone with golden lichen in Boonville Cemetery. Bryan, Texas, January 5, 2011
![](../../pictures/archives/compress/2019/2459/jpeg/02t.jpg) Some grey lichen on a granite tombstone in City Cemetery. Bryan, Texas, March 3, 2019
![](../../pictures/archives/compress/2019/2459/jpeg/04t.jpg) Some grey lichen together with Caloplaca on a granite tombstone in City Cemetery. Bryan, Texas, March 3, 2019
![](../../pictures/archives/compress/2019/2459/jpeg/03t.jpg) Some grey lichen with black apothecia on a granite tombstone in City Cemetery. Bryan, Texas, March 3, 2019
![](../../pictures/archives/compress/2019/2447/jpeg/23t.jpg) Rosette lichen (Physcia) on a tombstone in Old Independence Cemetery near Independence. Texas, February 10, 2019
![](../../pictures/archives/compress/2019/2459/jpeg/06t.jpg) Rosette lichen (Physcia) on a tomb in City Cemetery. Bryan, Texas, March 3, 2019
![](../../pictures/archives/compress/2019/2459/jpeg/05t.jpg) Close up of some grey lichen with black apothecia on a granite tombstone in City Cemetery. Bryan, Texas, March 3, 2019
![](../../pictures/archives/compress/2019/2447/jpeg/04t.jpg) Spotted rosette lichen (Physcia pumilior(?)) on a tombstone in Old Independence Cemetery near Independence. Texas, February 10, 2019
![](../../pictures/archives/compress/2019/2459/jpeg/12t.jpg) Rosette lichen (Physcia) on a marble tomb in City Cemetery. Bryan, Texas, March 3, 2019
![](../../pictures/archives/compress/2019/2459/jpeg/01t.jpg) Peppered rock-shield lichen (Xanthoparmelia conspersa) on a granite tombstone in City Cemetery. Bryan, Texas, March 3, 2019
![](../../pictures/archives/compress/2019/2447/jpeg/17t.jpg) Spotted rosette lichen (Physcia pumilior(?)) with brown apothecia on a tombstone in Old Independence Cemetery near Independence. Texas, February 10, 2019
![](../../pictures/archives/compress/2019/2447/jpeg/05t.jpg) Brown apothecia of spotted rosette lichen (Physcia pumilior(?)) on a tombstone in Old Independence Cemetery near Independence. Texas, February 10, 2019
![](../../pictures/archives/compress/2019/2459/jpeg/17t.jpg) Rosette lichen Physcia dimidiata(?) on a marble angel in City Cemetery. Bryan, Texas, March 3, 2019
![](../../pictures/archives/compress/2019/2459/jpeg/18t.jpg) Rosette lichen Physcia dimidiata(?) on a leg of a marble angel in City Cemetery. Bryan, Texas, March 3, 2019
![](../../pictures/archives/compress/2019/2459/jpeg/11t.jpg) Close up of rosette lichen (Physcia) on a marble tomb in City Cemetery. Bryan, Texas, March 3, 2019
![](../../pictures/archives/compress/2019/2459/jpeg/13t.jpg) Rosette lichen (Physcia) with apothecia on a marble tomb in City Cemetery. Bryan, Texas, March 3, 2019
![](../../pictures/archives/compress/2019/2439/jpeg/20t.jpg) Pyxine lichen on sandstone in Boonville Cemetery. Bryan, Texas, January 27, 2019
![](../../pictures/archives/compress/2011/906/jpeg/10t.jpg) Sign on a marble tombstone in Boonville Cemetery. Bryan, Texas, January 5, 2011
![](../../pictures/archives/compress/2011/906/jpeg/11t.jpg) Bible on a marble tombstone in Boonville Cemetery. Bryan, Texas, January 5, 2011
![](../../pictures/archives/compress/2019/2427/jpeg/31t.jpg) Rock shield lichen (Xanthoparmelia) on a granite tombstone in old Port Sullivan cemetery, west from Hearne. Texas, January 8, 2019
![](../../pictures/archives/compress/2019/2439/jpeg/21t.jpg) Small rosettes of Pyxine lichen on marble in Boonville Cemetery. Bryan, Texas, January 27, 2019
![](../../pictures/archives/compress/2018/2410/jpeg/30t.jpg) Rock-shield lichen (Xanthoparmelia) on a granite tombstone in City Cemetery. Bryan, Texas, December 8, 2018
![](../../pictures/archives/compress/2019/2427/jpeg/32t.jpg) Close up of rock shield lichen (Xanthoparmelia) on a granite tombstone in old Port Sullivan cemetery, west from Hearne. Texas, January 8, 2019
![](../../pictures/archives/compress/2019/2439/jpeg/25t.jpg) Sunken button lichen (Buellia spuria) on a marble tomb in Boonville Cemetery. Bryan, Texas, January 27, 2019
![](../../pictures/archives/compress/2019/2439/jpeg/26t.jpg) Powdered shadow lichen (Phaeophyscia hirsuta) with apothecia on marble in Boonville Cemetery. Bryan, Texas, January 27, 2019
![](../../pictures/archives/compress/2019/2439/jpeg/07t.jpg) Powdered shadow lichen (Phaeophyscia hirsuta) on a marble tomb in Boonville Cemetery. Bryan, Texas, January 27, 2019
![](../../pictures/archives/compress/2018/2420/jpeg/11t.jpg) Mexican yolk lichen (Candelina submexicana) together with granite rosette lichen (Physcia halei) at the edge of a granite stone in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
![](../../pictures/archives/compress/2019/2439/jpeg/10t.jpg) Powdered shadow lichen (Phaeophyscia hirsuta) with apothecia on a marble tomb in Boonville Cemetery. Bryan, Texas, January 27, 2019
![](../../pictures/archives/compress/2019/2439/jpeg/08t.jpg) Pattern of powdered shadow lichen (Phaeophyscia hirsuta) on a marble tomb in Boonville Cemetery. Bryan, Texas, January 27, 2019
![](../../pictures/archives/compress/2019/2438/jpeg/13t.jpg) 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
![](../../pictures/archives/compress/2019/2439/jpeg/11t.jpg) Powdered shadow lichen (Phaeophyscia hirsuta) with thorny apothecia on a marble tomb in Boonville Cemetery. Bryan, Texas, January 27, 2019
![](../../pictures/archives/compress/2019/2439/jpeg/29t.jpg) Pepper-spore lichen (Rinodina) (pale blue-grey) between other lichens on an old tomb in Boonville Cemetery. Bryan, Texas, January 27, 2019
![](../../pictures/archives/compress/2024/3635/jpeg/17t.jpg) 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
![](../../pictures/archives/compress/2019/2438/jpeg/16t.jpg) 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
![](../../pictures/archives/compress/2019/2438/jpeg/20t.jpg) 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
![](../../pictures/archives/compress/2019/2439/jpeg/22t.jpg) Firedot lichen Squamulea squamosa (Caloplaca squamosa) on a horizontal surface of a tomb in Boonville Cemetery. Bryan, Texas, January 27, 2019
![](../../pictures/archives/compress/2019/2439/jpeg/28t.jpg) Bare-bottomed sunburst lichen (Xanthomendoza weberi, Gallowayella weberi) on old iron(?) in Boonville Cemetery. Bryan, Texas, January 27, 2019
![](../../pictures/archives/compress/2019/2427/jpeg/24t.jpg) 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
![](../../pictures/archives/compress/2019/2439/jpeg/23t.jpg) Details of firedot lichen Squamulea squamosa (Caloplaca squamosa) on a horizontal surface of a tomb in Boonville Cemetery. Bryan, Texas, January 27, 2019
![](../../pictures/archives/compress/2019/2439/jpeg/24t.jpg) Firedot lichen Squamulea squamosa (Caloplaca squamosa) covering a horizontal surface of a tomb in Boonville Cemetery. Bryan, Texas, January 27, 2019
![](../../pictures/archives/compress/2010/900/jpeg/01t.jpg) Bible on a tombstone in Boonville Cemetery. Bryan, Texas, December 17, 2010
![](../../pictures/archives/compress/2010/900/jpeg/06t.jpg) Tombstone texture in Boonville Cemetery. Bryan, Texas, December 17, 2010
![](../../pictures/archives/compress/2019/2427/jpeg/22t.jpg) 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
![](../../pictures/archives/compress/2019/2427/jpeg/23t.jpg) 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
![](../../pictures/archives/compress/2019/2449/jpeg/28t.jpg) Rosette lichen (Physcia) in Ebenezer Cemetery near Huntsville, Texas, February 17, 2019
![](../../pictures/archives/compress/2019/2427/jpeg/21t.jpg) 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
![](../../pictures/archives/compress/2019/2427/jpeg/20t.jpg) 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
![](../../pictures/archives/compress/2019/2449/jpeg/31t.jpg) Rosette lichen (Physcia) on a tomb in Ebenezer Cemetery near Huntsville, Texas, February 17, 2019
![](../../pictures/archives/compress/2019/2427/jpeg/35t.jpg) Firedot lichen Caloplaca subsoluta (Squamulea subsoluta, Caloplaca irrubescens) on a granite tombstone in old Port Sullivan cemetery, west from Hearne. Texas, January 8, 2019
![](../../pictures/archives/compress/2012/1118/jpeg/20t.jpg) Texture of a marble tombstone at sunrise in Boonville Cemetery. Bryan, Texas, November 14, 2012
![](../../pictures/archives/compress/2019/2449/jpeg/33t.jpg) Rosette lichen (Physcia) with soredia on a tomb in Ebenezer Cemetery near Huntsville, Texas, February 17, 2019
![](../../pictures/archives/compress/2019/2459/jpeg/09t.jpg) Physcia(?) lichen on a marble tomb in City Cemetery. Bryan, Texas, March 3, 2019
![](../../pictures/archives/compress/2019/2449/jpeg/34t.jpg) Rosette lichen (Physcia) and sunburst lichen Xanthomendoza weberi (Gallowayella weberi) on a tomb in Ebenezer Cemetery near Huntsville, Texas, February 17, 2019
![](../../pictures/archives/compress/2019/2449/jpeg/32t.jpg) Rosette lichen Physcia dimidiata(?) on a marble tomb in Ebenezer Cemetery near Huntsville, Texas, February 17, 2019
![](../../pictures/archives/compress/2019/2496/jpeg/04t.jpg) Blue-gray rosette lichen Physcia caesia on a granite stone in dunes near the lake south from Mys Moryin Nos near Ladoga Lake, east from Saint Petersburg. Russia, May 14, 2019
![](../../pictures/archives/compress/2019/2447/jpeg/24t.jpg) Perforated ruffle lichen (Parmotrema perforatum) on a granite tombstone in Old Independence Cemetery near Independence. Texas, February 10, 2019
![](../../pictures/archives/compress/2019/2496/jpeg/06t.jpg) Close up of blue-gray rosette lichen Physcia caesia on a granite stone in dunes near the lake south from Mys Moryin Nos near Ladoga Lake, east from Saint Petersburg. Russia, May 14, 2019
![](../../pictures/archives/compress/2019/2496/jpeg/05t.jpg) Texture of blue-gray rosette lichen Physcia caesia on a granite stone in dunes near the lake south from Mys Moryin Nos near Ladoga Lake, east from Saint Petersburg. Russia, May 14, 2019
![](../../pictures/archives/compress/2019/2447/jpeg/25t.jpg) Peppered rock-shield lichen (Xanthoparmelia conspersa) on a granite tombstone in Old Independence Cemetery near Independence. Texas, February 10, 2019
![](../../pictures/archives/compress/2012/1126/jpeg/20t.jpg) Lichens on a granite tombstone in City Cemetery. Bryan, Texas, December 15, 2012
![](../../pictures/archives/compress/2024/3573/jpeg/26t.jpg) Rosette lichen Physcia on a granite shore of Gvardeysky Island. Vyborg, Russia, July 20, 2024
![](../../pictures/archives/compress/2024/3573/jpeg/27t.jpg) Close-up of rosette lichen Physcia on a granite shore of Gvardeysky Island. Vyborg, Russia, July 20, 2024
![](../../pictures/archives/compress/2019/2447/jpeg/09t.jpg) Buttoned rosette lichen (Pyxine) on a tombstone in Old Independence Cemetery near Independence. Texas, February 10, 2019
![](../../pictures/archives/compress/2019/2447/jpeg/11t.jpg) Buttoned rosette lichen (Pyxine) with soredia on a tombstone in Old Independence Cemetery near Independence. Texas, February 10, 2019
![](../../pictures/archives/compress/2019/2447/jpeg/06t.jpg) Greenish buttoned rosette lichen (Pyxine) on a tombstone in Old Independence Cemetery near Independence. Texas, February 10, 2019
![](../../pictures/archives/compress/2018/2410/jpeg/39t.jpg) Candleflame lichen Candelaria pacifica and another foliose lichen on a tomb in Boonville Cemetery. Bryan, Texas, December 8, 2018
![](../../pictures/archives/compress/2019/2447/jpeg/08t.jpg) Greenish buttoned rosette lichen (Pyxine) with soredia on a tombstone in Old Independence Cemetery near Independence. Texas, February 10, 2019
![](../../pictures/archives/compress/2019/2431/jpeg/19t.jpg) Streaked rosette lichen (Physcia atrostriata) in Lick Creek Park. College Station, Texas, January 18, 2019
![](../../pictures/archives/compress/2018/2420/jpeg/13t.jpg) Narrow lobes of granite rosette lichen (Physcia halei) in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
![](../../pictures/archives/compress/2018/2418/jpeg/22t.jpg) Slender rosette lichen (Physcia subtilis) on a granite surface in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
![](../../pictures/archives/compress/2019/2459/jpeg/15t.jpg) Apothecia of peppered rock-shield lichen (Xanthoparmelia conspersa) on a granite tomb in City Cemetery. Bryan, Texas, March 3, 2019
![](../../pictures/archives/compress/2019/2459/jpeg/14t.jpg) Pattern of peppered rock-shield lichen (Xanthoparmelia conspersa) on a granite tomb in City Cemetery. Bryan, Texas, March 3, 2019
![](../../pictures/archives/compress/2019/2459/jpeg/16t.jpg) Texture of peppered rock-shield lichen (Xanthoparmelia conspersa) on a granite tomb in City Cemetery. Bryan, Texas, March 3, 2019
![](../../pictures/archives/compress/2019/2459/jpeg/22t.jpg) Sunburst lichen Xanthomendoza weberi (Gallowayella weberi) together with Physcia on a tomb in City Cemetery. Bryan, Texas, March 3, 2019
![](../../pictures/archives/compress/2018/2423/jpeg/08t.jpg) Button lichen (Buellia) on a granite tombstone in Odd Fellow Cemetery. Anderson, Texas, December 31, 2018
![](../../pictures/archives/compress/2024/3635/jpeg/10t.jpg) Caloplaca and Xanthoparmelia lichens on a granite 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
![](../../pictures/archives/compress/2019/2437/jpeg/22t.jpg) Rosette lichen (Physcia) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, January 26, 2019
![](../../pictures/archives/compress/2019/2436/jpeg/06t.jpg) Rosette lichen (Physcia) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, January 26, 2019
![](../../pictures/archives/compress/2018/2410/jpeg/36t.jpg) Bare-bottomed sunburst lichen (Xanthomendoza weberi, Gallowayella weberi) and another foliose lichen on a tomb in Boonville Cemetery. Bryan, Texas, December 8, 2018
![](../../pictures/archives/compress/2019/2436/jpeg/01t.jpg) 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
![](../../pictures/archives/compress/2009/813/jpeg/12t.jpg) Detail of a tomb of a person who died in Boonville TX in 1875 in Boonville Cemetery. Bryan, Texas, December 8, 2009
![](../../pictures/archives/compress/2009/813/jpeg/11t.jpg) Tomb of Fordon Nfeoham(?) who died in Boonville TX in 1875 in Boonville Cemetery. Bryan, Texas, December 8, 2009
![](../../pictures/archives/compress/2019/2436/jpeg/05t.jpg) 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
![](../../pictures/archives/compress/2019/2436/jpeg/03t.jpg) 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
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