 Cladonia lichen at the foot of granite cliffs in Monrepos Park in Vyborg. Russia, May 24, 2019
 Small foliose lichen Cladonia incrassata(?) on granite cliffs in Monrepos Park in Vyborg. Russia, May 24, 2019
 Trumpet like Cladonia lichen in moss in Monrepos Park in Vyborg. Russia, May 24, 2019
 Crater lichen Diploschistes scruposus together with dark-brown lichen on granite cliffs in Monrepos Park in Vyborg. Russia, May 24, 2019
 Buellia(?) lichen on granite cliffs in Monrepos Park in Vyborg. Russia, May 24, 2019
 Some crustose lichen at the foot of granite cliffs in Monrepos Park in Vyborg. Russia, May 24, 2019
 Some black Buellia(?) lichen on granite cliffs in Monrepos Park in Vyborg. Russia, May 24, 2019
 Some brown Acarospora(?) lichen on granite cliffs in Monrepos Park in Vyborg. Russia, May 24, 2019
 Black Lecanora like lichen on granite cliffs in Monrepos Park in Vyborg. Russia, May 24, 2019
 Yellowish dust-like lichen at the foot of granite cliffs in Monrepos Park in Vyborg. Russia, May 24, 2019
 Thick crust of some greenish lichen on granite cliffs in Monrepos Park in Vyborg. Russia, May 24, 2019
 Crater lichen Diploschistes scruposus on granite cliffs in Monrepos Park in Vyborg. Russia, May 24, 2019
 Some grey sorediate Parmelia(?) lichen on granite cliffs in Monrepos Park in Vyborg. Russia, May 24, 2019
 Black apothecia of Lecanora like lichen on granite cliffs in Monrepos Park in Vyborg. Russia, May 24, 2019
 Some grey folios lichen at the foot of granite cliffs in Monrepos Park in Vyborg. Russia, May 24, 2019
 Close up of crater lichen Diploschistes scruposus on granite cliffs in Monrepos Park in Vyborg. Russia, May 24, 2019
 Crater lichen Diploschistes scruposus at the foot of granite cliffs in Monrepos Park in Vyborg. Russia, May 24, 2019
 Yellow map lichen (Rhizocarpon geographicum) at the foot of granite cliffs in Monrepos Park in Vyborg. Russia, May 24, 2019
 Dark brown Acarospora(?) lichen at the foot of granite 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
 Salted shield lichen (crottle, Parmelia saxatilis)(?) on granite cliffs in Monrepos Park in Vyborg. Russia, May 24, 2019
 Black hair like velvet lichen Cystocoleus ebeneus or may be Ephebe lanata at the foot of granite cliffs in Monrepos Park in Vyborg. Russia, May 24, 2019
 Song of Vainamoinen sculpture below granite cliffs in Monrepos Park in Vyborg. Russia, May 24, 2019
 Diploschistes lichen on granite in Monrepos Park in Vyborg. Russia, May 24, 2019
 Yellow map lichen (Rhizocarpon geographicum) on granite in Monrepos Park in Vyborg. Russia, May 24, 2019
 Close up of yellow map lichen (Rhizocarpon geographicum) in Monrepos Park in Vyborg. Russia, May 24, 2019
 Crater lichen Diploschistes scruposus on a granite cliff in Monrepos Park in Vyborg. Russia, May 24, 2019
 Yellowish dust-like lichen on vertical granite surface in Monrepos Park in Vyborg. Russia, May 24, 2019
 Salted shield lichen (crottle, Parmelia saxatilis) on granite in Monrepos Park in Vyborg. Russia, May 24, 2019
 Turbin lichen (Cladonia peziziformis) at the base of a broken pine on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, March 1, 2019
 Cladonia lichen on the base of a pine tree in Zakhodskoe, 50 miles north from Saint Petersburg. Russia, July 10, 2016
 Granite grotto in Monrepos Park in Vyborg. Russia, May 24, 2019
 Road at foot of granite cliff in Monrepos Park in Vyborg. Russia, May 24, 2019
 Some green Cladonia lichen on Lenin Trail near Dibuny, north-west from Saint Petersburg, Russia, May 11, 2019
 Trumpet like lichen Cladonia among pine needles in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, May 25, 2019
 Trumpet like lichen Cladonia in a pine forest in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, May 25, 2019
 Some Cladonia lichen in a pine forest in Zakhodskoe (Lounatjoki), 50 miles north from Saint Petersburg. Russia, May 9, 2019
 Trumpet like Cladonia lichen in a dry pine forest in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, May 25, 2019
 Green Cladonia lichen on sandstone or limestone in a forest in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Sieve lichen (Cladonia multiformis) among pine needles in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, May 25, 2019
 Close up of green Cladonia lichen on sandstone or limestone in a forest in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Reindeer lichen (Cladonia portentosa) in a pine forest in Zakhodskoe (Lounatjoki), 50 miles north from Saint Petersburg. Russia, May 9, 2019
 Thorn lichen Cladonia uncialis in a dry pine forest in Zakhodskoe (Lounatjoki), 50 miles north from Saint Petersburg. Russia, May 9, 2019
 Branches of reindeer lichen (Cladonia portentosa) in a pine forest in Zakhodskoe (Lounatjoki), 50 miles north from Saint Petersburg. Russia, May 9, 2019
 Close up of reindeer lichen (Cladonia rangiferina) in a pine forest in Zakhodskoe (Lounatjoki), 50 miles north from Saint Petersburg. Russia, May 9, 2019
 Ladder lichen (Cladonia cervicornis ssp. verticillata) on sandy soil in a pine forest near Kuzmolovo, north from Saint Petersburg. Russia, May 8, 2019
 Slender Cladonia lichen in a dry pine forest in dunes near the lake south from Mys Moryin Nos near Ladoga Lake, east from Saint Petersburg. Russia, May 14, 2019
 Some green Cladonia lichen near Lisiy Nos, west from Saint Petersburg. Russia, July 18, 2017
 Thorn lichen Cladonia uncialis and green moss in Zakhodskoe, 50 miles north from Saint Petersburg. Russia, July 10, 2016
 Reindeer lichen (Cladonia portentosa) and Cladonia cervicornis ssp. verticillata in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, August 21, 2013
 Railroad from a bridge above granite cliffs in Vyborg. Russia, May 24, 2019
 Reindeer lichen (Cladonia portentosa) and trumpet-shaped Cladonia cervicornis ssp. verticillata in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, August 21, 2013
 Cladonia lichen near Lisiy Nos, west from Saint Petersburg. Russia, May 6, 2019
 Bright green lichen Phyllopsora near the base of a fallen oak on Alligator Branch section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, February 17, 2019
 Sieve lichen (Cladonia multiformis) in Petiayarvi, north from Saint Petersburg. Russia, May 26, 2019
 Cladonia lichen in Zakhodskoe (Lounatjoki), 50 miles north from Saint Petersburg. Russia, May 9, 2019
 Reindeer lichen (Cladonia) in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, May 25, 2019
 Reindeer lichen Cladonia rangiferina in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, May 25, 2019
 Trumpet like Cladonia lichen in Zakhodskoe (Lounatjoki), 50 miles north from Saint Petersburg. Russia, May 9, 2019
 Species of reindeer lichen (Cladonia) in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, May 25, 2019
 Trumpet like Cladonia lichen on the ground in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, May 25, 2019
 Red apothecia of Cladonia lichen in Zakhodskoe (Lounatjoki), 50 miles north from Saint Petersburg. Russia, May 9, 2019
 Reindeer lichen Cladonia rangiferina(?) in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, May 25, 2019
 Sieve lichen (Cladonia multiformis) in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, May 25, 2019
 Trumpet like lichen Cladonia in moss in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, May 25, 2019
 Thorn lichen Cladonia uncialis in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, May 25, 2019
 Thorn lichen Cladonia uncialis in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, May 25, 2019
 Turbin lichen (Cladonia peziziformis) in Lick Creek Park. College Station, Texas, April 5, 2019
 Tiny round squamules of bright green lichen Phyllopsora near the base of a fallen oak on Alligator Branch section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, February 17, 2019
 Reindeer lichen (Cladonia portentosa) in Zakhodskoe (Lounatjoki), 50 miles north from Saint Petersburg. Russia, May 9, 2019
 Close up of reindeer lichen Cladonia rangiferina in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, May 25, 2019
 Species of reindeer lichen (Cladonia) in moss in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, May 25, 2019
 Close up of thorn lichen Cladonia uncialis in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, May 25, 2019
 Texture of thorn lichen Cladonia uncialis in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, May 25, 2019
 Reindeer lichen (Cladonia portentosa) with moss in Zakhodskoe (Lounatjoki), 50 miles north from Saint Petersburg. Russia, May 9, 2019
 Branch tips of reindeer lichen Cladonia rangiferina in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, May 25, 2019
 Star-tipped reindeer lichen (Cladonia stellaris) in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, May 25, 2019
 Trumpet lichen (Cladonia fimbriata) on sandy soil in Zakhodskoe (Lounatjoki), 50 miles north from Saint Petersburg. Russia, May 9, 2019
 Texture of star-tipped reindeer lichen (Cladonia stellaris) in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, May 25, 2019
 Close up of star-tipped reindeer lichen (Cladonia stellaris) in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, May 25, 2019
 Close up of grey reindeer lichen (Cladonia rangiferina) in Zakhodskoe (Lounatjoki), 50 miles north from Saint Petersburg. Russia, May 9, 2019
 Cetraria and Cladonia lichens in a pine forest in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, May 25, 2019
 Reindeer lichens (Cladonia) in a pine forest in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, May 25, 2019
 Reindeer lichens Cladonia rangiferina (greenish) and Cladonia portentosa (grey) in Kannelyarvi, 45 miles north from Saint Petersburg. Russia, May 25, 2019
 Pine-pine gall rust (Endocronartium harknessii rust fungus) on a swollen root at the base of a pine in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, March 10, 2019
 Reindeer lichen (Cladonia portentosa) in dunes near the lake south from Mys Moryin Nos near Ladoga Lake, east from Saint Petersburg. Russia, May 14, 2019
 Star-tipped reindeer lichen (Cladonia stellaris)(?) in dunes near the lake south from Mys Moryin Nos near Ladoga Lake, east from Saint Petersburg. Russia, May 14, 2019
 Dust lichen (Lepraria) in shade of cliffs in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Dust lichen (Lepraria) on limestone in shade of cliffs in Pedernales Falls State Park. Johnson City, Texas, January 11, 2019
 Cladonia strepsilis lichen on peat soil in Sosnovka Park. Saint Petersburg, Russia, July 3, 2017
 Grey reindeer lichen (Cladonia rangiferina) in haircap moss (Polytrichum piliferum) in dunes near the lake south from Mys Moryin Nos near Ladoga Lake, east from Saint Petersburg. Russia, May 14, 2019
 Cladonia incrassata(?) lichen and algae on peat soil in Sosnovka Park. Saint Petersburg, Russia, July 3, 2017
 Turbin lichen (Cladonia peziziformis) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, November 17, 2019
 Close up of dixie reindeer lichen (Cladonia subtenuis) in Watson Rare Native Plant Preserve. Warren, Texas, June 22, 2019
 Cushion of dixie reindeer lichen (Cladonia subtenuis) in Watson Rare Native Plant Preserve. Warren, Texas, June 22, 2019
 Branches of dixie reindeer lichen (Cladonia subtenuis) in Watson Rare Native Plant Preserve. Warren, Texas, June 22, 2019
 Details of dixie reindeer lichen (Cladonia subtenuis) in Watson Rare Native Plant Preserve. Warren, Texas, June 22, 2019
 Branches of dixie reindeer lichen (Cladonia subtenuis) in Watson Rare Native Plant Preserve. Warren, Texas, November 23, 2019
 Turbin lichen (Cladonia peziziformis) on roadside at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 12, 2019
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