 Perforated ruffle lichen (Parmotrema perforatum) on a fallen oak branch at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 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
 Palm ruffle lichen (Parmotrema tinctorum) on a fallen oak at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 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
 Powdered ruffle lichen (Parmotrema hypotropum) on bushes in semi-open area at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 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
 Powdered ruffle lichen (Parmotrema hypotropum(?)) on a fallen oak twig at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 24, 2021
 Powdered ruffle lichen (Parmotrema hypotropum) on bushes in semi-open area at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 26, 2020
 Powdered ruffle lichen (Parmotrema hypotropum) on small trees or bushes in half-open area at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, December 21, 2019
 Powdered ruffle lichen (Parmotrema hypotropum) 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
 Perforated ruffle lichen (Parmotrema perforatum) 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
 Powdered ruffle lichen (Parmotrema hypotropum) on a twig of small trees or bushes in half-open area at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, December 21, 2019
 Perforated ruffle lichen (Parmotrema perforatum) on a twig of 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
 Powdered ruffle lichen (Parmotrema hypotropum) on bushes at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, April 5, 2020
 Powdered ruffle lichen (Parmotrema hypotropum) together with a gall-forming lichenicolous fungus Tremella parmeliarum on a bush at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, December 20, 2021
 Powdered ruffle lichen (Parmotrema hypotropum) together with a parasitic gall-forming lichenicolous fungus Tremella parmeliarum on a twig of upland swamp-privet bush at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, December 20, 2021
 Powdered ruffle lichen (Parmotrema hypotropum) from a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, September 1, 2024
 Brown and greenish galls of lichenicolous fungus Tremella parmeliarum on powdered ruffle lichen (Parmotrema hypotropum) on a bush of upland swamp-privet in semi-open area at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, December 20, 2021
 Tuft of thorny Ramallina lichen (Ramalina willeyi) together with Parmotrema on a fallen oak twig at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 24, 2021
 Slender orange-bush lichen (Teloschistes exilis) together with T. chrysophthalmus, Ramallina and Parmotrema on a fallen oak twig at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, February 24, 2021
 Rough speckled shield lichen (Punctelia rudecta) on a fallen oak 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
 Corticioid fungus Phlebiopsis crassa (Porostereum crassum) on underside of a fallen oak branch at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
 Close up of corticioid fungus Phlebiopsis crassa (Porostereum crassum) on underside of a fallen oak branch at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
 Pink resupinate polypore mushroom Ceriporia(?) on a fallen oak branch at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 1, 2023
 Yellow cobblestone lichen Acarospora socialis on sandstone at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
 Buellia or may be Lecidella lichen on sandstone in an oak and red cedar forest at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
 Texture of netted crust fungus (Byssomerulius corium) on a fallen oak branch at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 26, 2020
 Close-up of pink resupinate polypore mushroom Ceriporia(?) on a fallen oak branch at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 1, 2023
 Pink and white resupinate polypore mushroom Ceriporia(?) on a fallen oak branch at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 1, 2023
 Border of netted crust fungus (Byssomerulius corium) on a fallen oak branch at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 26, 2020
 Patches of netted crust fungus (Byssomerulius corium) on a fallen oak branch at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 26, 2020
 Buellia or may be Lecidella lichen 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
 Mature creamy brown corticioid (crust) mushroom on a fallen branch of live oak at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 1, 2023
 Resupinate polypore mushroom Perenniporia phloiophila on bark of a fallen branch of live oak at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 1, 2023
 Brown corticioid (crust) fungus Dichostereum effuscatum on bark of a fallen oak branch at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 1, 2023
 Details of pink and white resupinate polypore mushroom Ceriporia(?) on a fallen oak branch at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 1, 2023
 Underside surface of netted crust fungus (Byssomerulius corium) on a fallen oak branch at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 26, 2020
 Sunken rim-lichen (Lecanora oreinoides) and peppered rock-shield lichen (Xanthoparmelia conspersa) 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
 Dust lichen (Lepraria) in shady spot on sandstone in an oak and red cedar forest 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
 Soredia of peppered rock-shield lichen (Xanthoparmelia conspersa) on sandstone at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
 Salted shell lichen (Coccocarpia palmicola) on sandstone in shade in an oak forest at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
 Rosettes of peppered rock-shield lichen (Xanthoparmelia conspersa) on sandstone at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
 Close-up of mature creamy brown corticioid (crust) mushroom on a fallen branch of live oak at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 1, 2023
 Brown corticioid (crust) mushroom Dichostereum effuscatum on a fallen dried live oak branch at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 1, 2023
 Resupinate polypore mushroom Phellinus on a fallen oak branch under naturally growing live oaks at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 18, 2021
 Close-up of resupinate polypore mushroom Perenniporia phloiophila on bark of a fallen branch of live oak at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 1, 2023
 Section of brown corticioid (crust) fungus Dichostereum effuscatum on bark of a fallen oak branch at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 1, 2023
 Close-up of brown corticioid (crust) fungus Dichostereum effuscatum on bark of a fallen oak branch at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 1, 2023
 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
 Black dotted lichen Buellia or may be Lecidella 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
 Peppered rock-shield lichen Xanthoparmelia conspersa on sandstone in an oak and red cedar forest at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
 Black dots of a lichen Buellia or may be Lecidella 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
 Yellow cobblestone lichen Acarospora socialis 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
 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
 Texture of sunken rim-lichen (Lecanora oreinoides) 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
 Dust lichen (Lepraria) in shady spot 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
 Small rosette of peppered rock-shield lichen (Xanthoparmelia conspersa) on sandstone at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
 Rough speckled shield lichen (Punctelia rudecta) on sandstone in an oak and red cedar forest 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
 Peppered rock-shield lichen (Xanthoparmelia conspersa) and sunken rim-lichen (Lecanora oreinoides) on a rock at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
 Pore surface of resupinate polypore mushroom Perenniporia phloiophila on bark of a fallen branch of live oak at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 1, 2023
 Texture of brown corticioid (crust) mushroom Dichostereum effuscatum on a fallen dried live oak branch at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 1, 2023
 Irregular surface of brown corticioid (crust) fungus Dichostereum effuscatum on bark of a fallen oak branch at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 1, 2023
 Small (around 6 cm in diameter) polypore mushrooms Truncospora mexicana or may be Perenniporia ochroleuca on a fallen oak branch, together with Phellinus at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 18, 2021
 Split porecrust fungus (Schizopora paradoxa) on a fallen oak branch under naturally growing live oaks at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 18, 2021
 Growth pattern of resupinate polypore mushroom Perenniporia phloiophila on bark of a fallen branch of live oak at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 1, 2023
 Fresh growth of brown corticioid (crust) fungus Dichostereum effuscatum on bark of a fallen oak branch at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 1, 2023
 Ruffle lichen Parmotrema submarginale on a fallen oak twig on Park Hudson Trail. Bryan, Texas, January 27, 2019
 Peppered rock-shield lichen Xanthoparmelia conspersa covering sandstone in an oak and red cedar forest at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
 White crust of sunken rim-lichen (Lecanora oreinoides) 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
 Peppered rock-shield lichen Xanthoparmelia conspersa 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
 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
 Turbin lichen (Cladonia peziziformis) on side surface of sandstone or limestone rocks near the ground at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
 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
 Thin growth of brown corticioid (crust) mushroom Dichostereum effuscatum on a fallen dried live oak branch at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 1, 2023
 Close up of ruffle lichen Parmotrema submarginale on an oak branch in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 12, 2019
 Soredia 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
 Dwarf rosette lichen Physcia neogaea or may be P. aipolia or P. pumilior on smooth bark of hackberry tree at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
 Peppered rock-shield lichen Xanthoparmelia conspersa with soredia 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
 Pattern of white crust of sunken rim-lichen (Lecanora oreinoides) 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
 Old 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
 Parmotrema(?) lichen on sandstone on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, December 21, 2023
 Brown corticioid (crust) mushroom Dichostereum effuscatum and white web-like parasitic fungus Sporophagomyces on bark of a fallen oak branch at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 1, 2023
 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
 Thorny Ramallina lichen (Ramalina willeyi) with apothecia 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
 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
 Peppered rock-shield lichen (Xanthoparmelia conspersa) on a rock at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
 Apothecia of peppered rock-shield lichen (Xanthoparmelia conspersa) on a rock at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019
 Mycena corticola mushrooms and folious lichen on a large branch of a live oak at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, December 20, 2021
 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
 Small (around 6 cm in diameter) polypore mushrooms Truncospora mexicana or may be Perenniporia ochroleuca on a fallen oak branch under naturally growing live oaks, together with Phellinus at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 18, 2021
 Pertusaria lichen on a twig at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, December 21, 2019
 Pox lichen (Pyrenula)(?) on a twig at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, December 21, 2019
 Firedot lichen Squamulea squamosa (Caloplaca squamosa) 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
 Brown corticioid (crust) fungus Dichostereum effuscatum with white web-like fungus Sporophagomyces on bark of a fallen oak branch at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 1, 2023
 White fringe lichen (Heterodermia albicans) with apothecia on a large branch of a live oak at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, December 20, 2021
 Resupinate polypore mushrooms Fomitiporia on a fallen oak branch at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, December 29, 2020
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