Sunken button lichen (Buellia spuria) on a marble tomb in Boonville Cemetery. Bryan, Texas, January 27, 2019
Green folious lichen on an iron foot bridge across the bayou in area of Winters Bayou in Sam Houston National Forest, east from Waverly. Texas, February 23, 2019
Zoned cork hydnum mushrooms (Phellodon tomentosus) among lichens near Orekhovo, north from Saint Petersburg. Russia, August 13, 2016
Trumpet-like lichen near Dibuny, north-west from Saint Petersburg. Russia, August 18, 2016
Club like lichenized fungi Multiclavula mucida on a log near Volchya River in Petiayarvi, north from Saint Petersburg. Russia, September 17, 2017
Powdery medallion lichen (Dirinaria applanata)(?) in Lick Creek Park. College Station, Texas, January 18, 2019
Graphis lichen with orange alga Trentepohlia(?) on an oak in Lick Creek Park. College Station, Texas, January 18, 2019
Fringe lichen (Heterodermia albicans(?)) on acacia (huisache) tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
Smooth axil-bristle lichen (Myelochroa galbina) on a thin twig of a bush at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
Sunken rim-lichen (Lecanora oreinoides) or may be Aspicilia on sandstone outcrops in an oak and red cedar forest at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
Orange apothecia of bark sulphur-firedot lichen (Gyalolechia flavorubescens, Caloplaca flavorubescens) in Lick Creek Park. College Station, Texas, February 3, 2019
Texture of bark sulphur-firedot lichen (Gyalolechia flavorubescens, Caloplaca flavorubescens) on a hackberry tree in Lick Creek Park. College Station, Texas, February 3, 2019
Wrinkled loop lichen (Hypotrachyna livida) on an oak(?) in Lick Creek Park. College Station, Texas, February 20, 2019
Pale brown Lecanora lichen on an oak in Lick Creek Park. College Station, Texas, February 20, 2019
Parmotrema together with loop lichen (Hypotrachyna)(?) on a tree on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, March 1, 2019
White fringe lichen (Heterodermia albicans) on an oak on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, March 1, 2019
Disk-shaped apothecia of maritime sunburst lichen (Xanthoria parietina) on a dry trunk of mountain ash on Svetlanovsky Prospect. Saint Petersburg, Russia, May 7, 2019
Some grey folios lichen at the foot of granite cliffs in Monrepos Park in Vyborg. Russia, May 24, 2019
Diploschistes lichen on granite in Monrepos Park in Vyborg. Russia, May 24, 2019
Green Cladonia(?) lichen at the base of a pine below cliffs in Monrepos Park in Vyborg. Russia, May 24, 2019
Yellowish dust-like lichen Trapeliopsis(?) at the foot of granite cliffs in Monrepos Park in Vyborg. Russia, May 24, 2019
Texture of star-tipped reindeer lichen (Cladonia stellaris) in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, May 25, 2019
Sunken bloodspot lichen (Haematomma persoonii) in Lick Creek Park. College Station, Texas, June 17, 2019
Foliose lichens on a fallen oak twig in Lick Creek Park. College Station, Texas, June 18, 2019
Octopus-like palmetto lichen (Ramalina celastri) in Lick Creek Park. College Station, Texas, June 18, 2019
Various lichens covering statue of Virgin Mary in Washington Cemetery. Washington, Texas, December 8, 2019
Octopus-like palmetto lichen (Ramalina celastri) on a small oak in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 8, 2019
Scaly stippled lichen (Endocarpon pusillum) on a thin layer of soil over exposed limestone rocks overgrown by prickly pears near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
Close-up of scaly stippled lichen (Endocarpon pusillum) on a thin layer of soil over exposed limestone rocks overgrown by prickly pears near a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 18, 2020
Bushy beard lichen (Usnea strigosa) on a small tree or a bush in half-open area at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 26, 2020
Close-up of texture of lichens on bark of hackberry (Celtis laevigata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 3, 2020
Golden moonglow lichen (Dimelaena oreina, greenish grey) with some black granular lichen in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
Golden dust lichen Chrysothrix xanthina with a folious lichen on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
Dust lichen (Lepraria incana) on bark of a large pine tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, March 10, 2019
Various lichens on the ground in Zakhodskoe, 50 miles north from Saint Petersburg. Leningrad Region, Russia, August 7, 2016
Drab Tooth mushrooms (Phellodon fuligineoalbus, Bankera fuligineoalba) with lichens near Orekhovo, north from Saint Petersburg. Russia, August 13, 2016
Golden eye lichen (Teloschistes chrysophthalmus) on a fallen oak branch in Bee Creek Park. College Station, Texas, December 26, 2017
Mushrooms Trichoderma peltatum (Hypocrea peltata) together with Trentepohlia alga and lichens on a fallen oak branch in Lick Creek Park. College Station, Texas, July 9, 2018
Peppered rock-shield lichen (Xanthoparmelia conspersa) on a granite tomb in City Cemetery. Bryan, Texas, December 8, 2018
Headless marble statue with lichens on a child s tomb in City Cemetery. Bryan, Texas, December 8, 2018
Lichens Cryptothecia striata and Phyllopsora pyxinoides (Crocynia pyxinoides) on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
Close up of yellow cobblestone lichen Acarospora socialis in partial shade on sandstone of Lost Pines Overlook in Bastrop State Park. Bastrop, Texas, March 14, 2019
Bark sulphur-firedot lichen (Gyalolechia flavorubescens, Caloplaca flavorubescens) on bark of hackberry tree in Lick Creek Park. College Station, Texas, January 1, 2019
Lepra lichen on a fallen oak branch in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
Iceland moss (Cetraria islandica lichen) in Zakhodskoe, 50 miles north from Saint Petersburg. Leningrad Region, Russia, August 7, 2016
Felt lichen (common freckle pelt, Peltigera aphthosa) in Zakhodskoe, 50 miles north from Saint Petersburg. Leningrad Region, Russia, August 7, 2016
White arachnoid corticioid fungus (mushroom) Athelia arachnoidea parasitizing on lichens on a maple tree in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, April 2, 2017
Dixie reindeer lichen (Cladonia subtenuis) under lonleaf pines in Watson Rare Native Plant Preserve. Warren, Texas, June 23, 2018
Sidewalk firedot lichen (Xanthocarpia feracissima, Caloplaca feracissima) on a marble rose in Boonville Cemetery. Bryan, Texas, December 8, 2018
Leather lichen Dermatocarpon luridum and yellow stonecrop (Sedum nuttallianum) in a wet spot in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
Bordered scale lichen (Psora pseudorussellii) on a limestone conglomerate rock near the river in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
Black lichen Verrucaria on limestone in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
White fringe lichen (Heterodermia albicans) (or may be H. japonica, H. casarettiana) on hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
Medallion lichen (Dirinaria confusa) with black apothecia in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
Tuft of thorny Ramallina lichen (Ramalina willeyi) on a thin twig of a bush in a half-open area at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
Flowering fringe lichen (Heterodermia echinata) on a fallen oak twig at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
Warty lichen (Pertusaria) on a fallen tree on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, January 26, 2019
Powdered speckled shield lichen (Punctelia subrudecta) or may be P. caseana on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, January 26, 2019
Green crustose lichen Pertusaria on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, January 26, 2019
Ramalina peruviana(?) lichen on a tree in a forest on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, January 26, 2019
Warts of lichen Trypethelium carolinianum (Bathelium carolinianum) on an oak on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, January 26, 2019
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
Powdery medallion lichen (Dirinaria applanata), to the left, and other foliose lichen on lower branches of old acacia (huisache) between Signature Park 11 apartments and Oil Well near Park Hudson Trail. 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
Powdered shadow lichen (Phaeophyscia hirsuta) with apothecia on marble in Boonville Cemetery. Bryan, Texas, January 27, 2019
Lichen Canoparmelia caroliniana(?) on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
Lichen Phyllopsora confusa on a tree near the creek in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
Ramalina dasypoga lichen on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
Brick-spored firedot lichen Brigantiaea leucoxantha on tree bark in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
Brown and green squamules of limy soil stipplescale lichen (Placidium squamulosum, Catapyrenium squamulosum) on shallow soil covering limestone on Moore s Hill Outcrop at FM Road 3090 near Navasota. Texas, February 2, 2019
Physcia lichen with brown apothecia on yaupon holly or may be on oak in Lick Creek Park. College Station, Texas, February 3, 2019
Green lacewing larva Leucochrysa (Nodita) pavida camouflaged with lichen fragments and some brown prostrate fungus (Corticiaceae) on a tree in area of Winters Bayou in Sam Houston National Forest, east from Waverly. Texas, February 23, 2019
Close up of map lichen Rhizocarpon petraeum on a granite stone in Zakhodskoe (Lounatjoki), 50 miles north from Saint Petersburg. Russia, May 9, 2019
Granite stone with saxicolous crustose lichens near the lake south from Mys Moryin Nos near Ladoga Lake, east from Saint Petersburg. Russia, May 14, 2019
Bushy beard lichen (Usnea strigosa) fallen from an oak in Lick Creek Park. College Station, Texas, June 18, 2019
Slender orange bush lichen (Teloschistes exilis) on a fallen twig in Lick Creek Park. College Station, Texas, June 18, 2019
Fern and ivy leaves covered by lichens on a tomb in Boonville Cemetery. Bryan, Texas, December 8, 2018
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
Close up of green Cladonia lichen on sandstone or limestone in a forest in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
Stonewall rim-lichen (Lecanora muralis, Protoparmeliopsis muralis) near Lost Pines Overlook in Bastrop State Park. Bastrop, Texas, March 14, 2019
Lichens on a handshake symbol in City Cemetery. Bryan, Texas, December 15, 2012
Sunken bloodspot lichen (Haematomma persoonii) on bark of hackberry tree in Lemontree Park. College Station, Texas, January 2, 2019
Blue-edged scale lichen (Psorula rufonigra) (olivaceous) on a filamentous cyanolichen Spilonema revertens (black) in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
Rock-shield lichen Xanthoparmelia in shaded place in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
Lichen with brightly colored and oddly shaped reproductive structures in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 28, 2008
Golden eye lichen (Teloschistes chrysophthalmus) with oddly shaped reproductive structures on a twig picked under an oak on campus of Texas A and M University after a tropical storm "Ike". College Station, Texas, September 13, 2008
Golden eye lichen (Teloschistes chrysophthalmus)(?) in Washington-on-the-Brazos State Historic Site. Washington, Texas, July 1, 2012
Common reindeer lichen Cladonia portentosa and sundew (Drosera rotundifolia) on a boardwalk in Boloto Lammin-Suo swamp reserve, 25 miles north-west from Saint Petersburg. Russia, June 16, 2014
Lichen growing on a tree branch in Lick Creek Park. College Station, Texas, December 28, 2008
Golden crustose lichen Caloplaca aurantia on a stone in desert near industrial zone of Ras Laffan, north from Doha. Qatar, March 23, 2013
Surprise lichen (Bacidia schweinitzii) on a holly tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
Texture of Brigantiaea(?) lichen on a deciduous tree near the creek in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
Fissurina lichen on bark of a magnolia tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
Ruffle lichen Parmotrema submarginale on a fallen oak twig on Park Hudson Trail. Bryan, Texas, January 27, 2019
Greenish fruiticose lichen Ramalina celastri looking like antlers on a twig picked under an oak on campus of Texas A and M University after a tropical storm "Ike". College Station, Texas, September 13, 2008
Cladonia lichen with red spore reproducing organs in a forest in Posiolok, near Vyritsa, 50 miles south from Saint Petersburg. Russia, July 9, 2016
Black and grey map lichen Rhizocarpon petraeum on the surface of a rock in Zakhodskoe, 50 miles north from Saint Petersburg. Russia, July 10, 2016
Pillow shaped reindeer lichen Cladonia portentosa in Zakhodskoe, 50 miles north from Saint Petersburg. Leningrad Region, Russia, August 7, 2016
Trumpet lichen (Cladonia fimbriata) in Zakhodskoe, 50 miles north from Saint Petersburg. Leningrad Region, Russia, August 7, 2016
Maritime sunburst lichen (Xanthoria parietina) on a tree near northern road in Yuntolovsky Park. Saint Petersburg, Russia, March 1, 2017
Lichenized mushrooms Lichenomphalia umbellifera in Sosnovka Park. Saint Petersburg, Russia, June 29, 2017
Mushroom Trichoderma peltatum (Hypocrea peltata) together with various lichens on a fallen oak branch in Lick Creek Park. College Station, Texas, July 9, 2018
Lichenized mushrooms Lichenomphalia umbellifera on mossy peat near Vyritsa, 50 miles south from Saint Petersburg. Russia, August 22, 2018
Lichens on a marble tomb in Boonville Cemetery. Bryan, Texas, December 8, 2018
Bare-bottomed sunburst lichen (Xanthomendoza weberi, Gallowayella weberi) and another foliose lichen on a tomb in Boonville Cemetery. Bryan, Texas, December 8, 2018
Leather lichen Dermatocarpon luridum on dark brown water lichen Pyrenopsis in water seepage area on granite in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
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
Saucer lichen Ochrolechia pallescens on a stem of yaupon holly in Hensel Park. College Station, Texas, December 30, 2018
Ruffle lichen Parmotrema submarginale on an oak in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 12, 2019
Various fruticose lichens on a fallen oak twig in Lick Creek Park. College Station, Texas, January 22, 2019
Firedot lichen Xanthocarpia crenulatella (Caloplaca crenulatella) on erosion control stones in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
Powdered ruffle lichen (Parmotrema hypotropum) on a twig of a bush in a half-open area at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
Young patch of peppered rock-shield lichen Xanthoparmelia conspersa on sandstone outcrop at the road descent at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
Smooth shadow-crust lichen (Hyperphyscia syncolla) on bark of lower branches of old acacia (huisache) between Signature Park 11 apartments and Oil Well near Park Hudson Trail. Bryan, Texas, January 27, 2019
Powdered shadow lichen (Phaeophyscia hirsuta) on a marble tomb in Boonville Cemetery. Bryan, Texas, January 27, 2019
Rosette lichen (Physcia) on an iron fence 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
Button lichen (Buellia) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
Fissurina lichen on bark in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
Pixie-hair lichen (Coenogonium implexum) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
Limy soil stipplescale lichen (Placidium squamulosum, Catapyrenium squamulosum) in wet condition (green) on shallow soil covering limestone on Moore s Hill Outcrop at FM Road 3090 near Navasota. Texas, February 2, 2019
Sunken bloodspot lichen (Haematomma persoonii) on an oak branch in Lick Creek Park. College Station, Texas, February 3, 2019
Fringe lichen Heterodermia casarettiana (Polyblastidium casarettianum) on a tree on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, March 2, 2019
Firedot lichen Squamulea squamosa (Caloplaca squamosa) on a marble tomb in City Cemetery. Bryan, Texas, March 3, 2019
Sunburst lichen Xanthomendoza weberi (Gallowayella weberi) together with Physcia on a tomb in City Cemetery. Bryan, Texas, March 3, 2019
Caloplaca together with some grey lichen in City Cemetery. Bryan, Texas, March 3, 2019
Pattern of yellow cobblestone lichen Acarospora socialis on sandstone near Lost Pines Overlook in Bastrop State Park. Bastrop, Texas, March 14, 2019
Close up of yellow cobblestone lichen Acarospora socialis on sandstone near Lost Pines Overlook in Bastrop State Park. Bastrop, Texas, March 14, 2019
Firedot lichen Squamulea squamosa (Caloplaca squamosa) with apothecia on sandstone of Lost Pines Overlook in Bastrop State Park. Bastrop, Texas, March 14, 2019
Firedot lichen Squamulea squamosa (Caloplaca squamosa) near Lost Pines Overlook in Bastrop State Park. Bastrop, Texas, March 14, 2019
Circular patterns of map lichen Rhizocarpon petraeum on a granite stone in Zakhodskoe (Lounatjoki), 50 miles north from Saint Petersburg. Russia, May 9, 2019
Various saxicolous crustose lichens on a granite stone near the lake near old army bathhouse south from Mys Moryin Nos near Ladoga Lake, east from Saint Petersburg. Russia, May 14, 2019
Lichens on tree bark on Raccoon Run Trail in Lick Creek Park. College Station, Texas, December 19, 2013
Ring-like growth of thin white arachnoid corticioid fungus (mushroom) Athelia arachnoidea(?) killing lichens on a trunk of a maple in Sosnovka Park. Saint Petersburg, Russia, February 3, 2017
Marble child s head with black and green lichens in City Cemetery. Bryan, Texas, December 8, 2018
Shrubby body of Golden eye lichen (Teloschistes chrysophthalmus) on a tree branch in Lick Creek Park. College Station, Texas, December 28, 2008
Shoot of Virginia creeper vine on a tree covered by bark lichens in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 15, 2009
Lichen and boulders near Goat Hill Trail in Blackstone River and Canal Heritage State Park. Uxbridge, Massachusetts, October 30, 2004
Lichens on stone roses in City Cemetery. Bryan, Texas, December 15, 2012
Slender orange bush lichen (Teloschistes exilis) on a twig in Washington-on-the-Brazos State Historic Site. Washington, Texas, August 29, 2010
Lichens on a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2010
Lichens covering a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 16, 2010
Slender orange bush lichen (Teloschistes exilis) in Lake Bryan Park. Bryan, Texas, October 10, 2012
Golden lichen on stones near Jabal Al Jassasiya, on north-eastern coast. Qatar, December 26, 2015
Black and orabge lichens on a stone on a rocky ridge in Jabal Al Jassasiya site, on north-eastern coast. Qatar, December 26, 2015
Buellia subalbula (white with black apothecia) and other crustose lichens on stones on a rocky ridge of Jebel Fuwairit. Northern Qatar, March 12, 2016
Hydrophobic and breathable structure of Mapledust lichen (Lecanora thysanophora) or may be Whitewash lichen Phlyctis argena on an aspen west from Dibuny - Pesochny area near Saint Petersburg. Russia, February 4, 2017
Firedot lichen Caloplaca on a tomb in City Cemetery. Bryan, Texas, December 8, 2018
Rock-shield lichen (Xanthoparmelia) on a granite tombstone in City Cemetery. Bryan, Texas, December 8, 2018
Firedot lichen Fulgogasparrea brouardii (Caloplaca brouardii)(?) with isidia in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
Rock-shield lichen Xanthoparmelia in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
Lichens covering granite 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
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
Grainy shadow-crust lichen (Hyperphyscia adglutinata) (olive), bare-bottomed sunburst lichen (Xanthomendoza weberi, Gallowayella weberi) (golden) and some greenish grey lichen on a massive cast iron fence in Odd Fellow Cemetery. Anderson, Texas, December 31, 2018
Various green and grey lichens on a massive cast iron fence in Odd Fellow Cemetery. Anderson, Texas, December 31, 2018
Medallion lichen (Dirinaria confusa) on a tree in Odd Fellow Cemetery. Anderson, Texas, December 31, 2018
Powdery medallion lichen (Dirinaria applanata) on a tomb in cemetery at Mission de Cristo Jesus Church at road 259 in Port Sullivan, west from Hearne. Texas, January 8, 2019
White patch of Aspicilia lichen on a limestone rock in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
Perforated ruffle lichen (Parmotrema perforatum) with apothecia on a fallen oak branch at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
Lichen Dirinaria applanata or may be Physcia on smooth bark of hackberry tree at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
Rosette lichen Dirinaria applanata or may be Physcia on smooth bark of hackberry tree at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
Firedot lichen Squamulea squamosa (Caloplaca squamosa) on sandstone at the road descent at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
Pyxine lichen on separated bark in bushes on Park Hudson Trail. 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
Wrinkled loop lichen (Hypotrachyna livida) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
Flowering fringe lichen (Heterodermia echinata) on a fallen oak twig in Lick Creek Park. College Station, Texas, February 3, 2019
Powdered shadow lichen (Phaeophyscia hirsuta) in a city cemetery. College Station, Texas, February 6, 2019
Smooth shadow-crust lichen (Hyperphyscia syncolla) and other lichens on Mexican buckeye (Ungnadia speciosa) in Antique Rose Emporium. Independence, Texas, February 27, 2019
Turbin lichen (Cladonia peziziformis) in Lick Creek Park. College Station, Texas, April 5, 2019
Fruticose lichen Evernia prunastri on a tree bark on Kurgalsky Peninsula near Ust Luga. Russia, May 5, 2019
Shoot of Virginia creeper vine on a tree, with patches of various lichens in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 15, 2009
Slender orange bush lichen (Teloschistes exilis) in Lick Creek Park. College Station, Texas, March 18, 2010.
Marble tombstone with golden lichen in Boonville Cemetery. Bryan, Texas, January 5, 2011
Orange-brown disks of fruiting bodies (apothecia) of crustose lichen Caloplaca aurantia a stone in desert near industrial zone of Ras Laffan, north from Doha. Qatar, March 23, 2013
Golden eye lichen (Teloschistes chrysophthalmus) on a twig in Lick Creek Park. College Station, Texas, December 28, 2008
Lichen on loop trail in Washington-on-the-Brazos State Historic Site. Washington, Texas, November 23, 2009
Crazy-paving pattern in the center of crustose lichen Caloplaca aurantia on a stone in desert near industrial zone of Ras Laffan, north from Doha. Qatar, March 23, 2013
Cowberry with lichens in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, August 21, 2013
Common reindeer lichen Cladonia portentosa in Boloto Lammin-Suo swamp reserve. Saint Petersburg, Russia, September 16, 2013
Xanthoparmelia conspersa and Caloplaca lichens on a tomb in City Cemetery. Bryan, Texas, January 3, 2019
Lobed cotton lichen (Crocynia pyxinoides, Phyllopsora pyxinoides) on a holly tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
Slender orange bush lichen (Teloschistes exilis) on a twig in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 28, 2008
Tree bark with lichens on Racoon Run Trail in Lick Creek Park. College Station, Texas, July 17, 2013
Gold colored reproductive organs surrounded by "eye lashes" of Golden eye lichen (Teloschistes chrysophthalmus) in Lick Creek Park. College Station, Texas, December 28, 2008
Patch of rounded crustose lichen Caloplaca aurantia on a stone in desert near industrial zone of Ras Laffan, north from Doha. Qatar, March 23, 2013
A tree limb with slender orange bush (Teloschistes exilis) and Ramalina lichens on Raccoon Run Trail in Lick Creek Park. College Station, Texas, December 26, 2013
Dog lichen (Peltigera membranacea) in Dibuny, north-west from Saint Petersburg, Russia, October 23, 2016
Firedot lichen Fulgogasparrea brouardii (Caloplaca brouardii)(?) on granite stone in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
Blue-edged scale lichen (Psorula rufonigra) in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
Blue-edged scale lichen (Psorula rufonigra) (olivaceous) in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
Red firedot lichen Fulgogasparrea appressa (Caloplaca appressa)(?) on granite in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
Sunken disk lichen Aspicilia (grey) in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
Dark brown crustose lichen Caloplaca growing on a yellow dispersed lichen Acarospora (cobblestone, or cracked lichen) in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
Mixed crustose lichens on bark of Mexican buckeye (Ungnadia speciosa) in Antique Rose Emporium. Independence, Texas, December 29, 2018
Saucer lichen Ochrolechia on a hackberry(?) tree in Odd Fellow Cemetery. Anderson, Texas, December 31, 2018
Button lichen (Buellia) on a polished granite surface of Bible on a tomb in Odd Fellow Cemetery. Anderson, Texas, December 31, 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
Perforated ruffle lichen (Parmotrema perforatum) on a fallen oak twig in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 12, 2019
Powdered ruffle lichen (Parmotrema hypotropum) on a thin twig of a bush at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
