![](../../pictures/archives/compress/2019/2530/jpeg/25t.jpg) Warty lichen (Pertusaria) together with Ochrolechia pallescens and Haematomma persoonii in Lick Creek Park. College Station, Texas, June 17, 2019
![](../../pictures/archives/compress/2019/2431/jpeg/04t.jpg) Sunken bloodspot lichen (Haematomma persoonii) and Lecanora on oak in Lick Creek Park. College Station, Texas, January 18, 2019
![](../../pictures/archives/compress/2019/2530/jpeg/26t.jpg) Pertusaria, Ochrolechia pallescens and Haematomma persoonii lichens on a branch of a small oak in Lick Creek Park. College Station, Texas, June 17, 2019
![](../../pictures/archives/compress/2019/2530/jpeg/20t.jpg) Sunken bloodspot lichen (Haematomma persoonii) in Lick Creek Park. College Station, Texas, June 17, 2019
![](../../pictures/archives/compress/2020/2636/jpeg/34t.jpg) Pertusaria and sunken bloodspot (Haematomma persoonii) lichens on a dry oak in Lick Creek Park. College Station, Texas, January 23, 2020
![](../../pictures/archives/compress/2019/2445/jpeg/02t.jpg) Sunken bloodspot lichen (Haematomma persoonii) on an oak in Lick Creek Park. College Station, Texas, February 3, 2019
![](../../pictures/archives/compress/2019/2445/jpeg/03t.jpg) Red patch of sunken bloodspot lichen (Haematomma persoonii) on an oak in Lick Creek Park. College Station, Texas, February 3, 2019
![](../../pictures/archives/compress/2019/2445/jpeg/06t.jpg) Sunken bloodspot lichen (Haematomma persoonii) on an oak twig in Lick Creek Park. College Station, Texas, February 3, 2019
![](../../pictures/archives/compress/2019/2445/jpeg/01t.jpg) Sunken bloodspot lichen (Haematomma persoonii) on an oak branch in Lick Creek Park. College Station, Texas, February 3, 2019
![](../../pictures/archives/compress/2019/2431/jpeg/15t.jpg) Sunken bloodspot lichen (Haematomma persoonii) on river birch in Lick Creek Park. College Station, Texas, January 18, 2019
![](../../pictures/archives/compress/2019/2425/jpeg/11t.jpg) Sunken bloodspot lichen (Haematomma persoonii) on bark of hackberry tree in Lemontree Park. College Station, Texas, January 2, 2019
![](../../pictures/archives/compress/2019/2425/jpeg/14t.jpg) Texture of sunken bloodspot lichen (Haematomma persoonii) on bark of hackberry tree in Lemontree Park. College Station, Texas, January 2, 2019
![](../../pictures/archives/compress/2019/2425/jpeg/12t.jpg) Red apothecia of sunken bloodspot lichen (Haematomma persoonii) on bark of hackberry tree in Lemontree Park. College Station, Texas, January 2, 2019
![](../../pictures/archives/compress/2019/2530/jpeg/22t.jpg) Lecanora lichen in wet condition in Lick Creek Park. College Station, Texas, June 17, 2019
![](../../pictures/archives/compress/2019/2530/jpeg/21t.jpg) Lecanora lichen on a small oak in Lick Creek Park. College Station, Texas, June 17, 2019
![](../../pictures/archives/compress/2019/2442/jpeg/04t.jpg) Sunken bloodspot lichen (Haematomma persoonii) on a fallen oak twig in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
![](../../pictures/archives/compress/2019/2432/jpeg/19t.jpg) Warty lichen (Pertusaria) in Lick Creek Park. College Station, Texas, January 18, 2019
![](../../pictures/archives/compress/2019/2445/jpeg/27t.jpg) Warty lichen (Pertusaria) on a tree in Lick Creek Park. College Station, Texas, February 3, 2019
![](../../pictures/archives/compress/2019/2447/jpeg/18t.jpg) Sunken bloodspot lichen (Haematomma persoonii) on a deciduous tree in Old Independence Cemetery near Independence. Texas, February 10, 2019
![](../../pictures/archives/compress/2019/2445/jpeg/05t.jpg) Lecanora lichen on an oak twig in Lick Creek Park. College Station, Texas, February 3, 2019
![](../../pictures/archives/compress/2019/2430/jpeg/03t.jpg) Sunken bloodspot lichen (Haematomma persoonii) on an oak in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 12, 2019
![](../../pictures/archives/compress/2019/2455/jpeg/02t.jpg) Sunken bloodspot lichen (Haematomma persoonii) on a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 27, 2019
![](../../pictures/archives/compress/2019/2432/jpeg/15t.jpg) Pale brown Lecanora lichen on an oak in Lick Creek Park. College Station, Texas, January 18, 2019
![](../../pictures/archives/compress/2019/2450/jpeg/12t.jpg) Pale brown Lecanora lichen on an oak in Lick Creek Park. College Station, Texas, February 20, 2019
![](../../pictures/archives/compress/2019/2431/jpeg/07t.jpg) Frosted rim-lichen (Lecanora caesiorubella) on an oak in Lick Creek Park. College Station, Texas, January 18, 2019
![](../../pictures/archives/compress/2019/2445/jpeg/20t.jpg) Mealy rim-lichen (Lecanora strobilina) on an oak in Lick Creek Park. College Station, Texas, February 3, 2019
![](../../pictures/archives/compress/2019/2448/jpeg/21t.jpg) Sunken bloodspot lichen (Haematomma persoonii) on a fallen oak on Alligator Branch section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, February 17, 2019
![](../../pictures/archives/compress/2019/2445/jpeg/08t.jpg) Frosted rim-lichen (Lecanora caesiorubella), to the left, in Lick Creek Park. College Station, Texas, February 3, 2019
![](../../pictures/archives/compress/2019/2445/jpeg/11t.jpg) Frosted rim-lichen (Lecanora caesiorubella) on a tree in Lick Creek Park. College Station, Texas, February 3, 2019
![](../../pictures/archives/compress/2019/2445/jpeg/29t.jpg) Mealy rim-lichen (Lecanora strobilina) on a tree in Lick Creek Park. College Station, Texas, February 3, 2019
![](../../pictures/archives/compress/2019/2431/jpeg/02t.jpg) Mealy rim-lichen (Lecanora strobilina) on bark of oak in Lick Creek Park. College Station, Texas, January 18, 2019
![](../../pictures/archives/compress/2019/2530/jpeg/23t.jpg) Lecanora and Buellia lichens on a small oak in Lick Creek Park. College Station, Texas, June 17, 2019
![](../../pictures/archives/compress/2018/2423/jpeg/25t.jpg) Sunken bloodspot lichen (Haematomma persoonii) on a petrified wood tomstone in Odd Fellow Cemetery. Anderson, Texas, December 31, 2018
![](../../pictures/archives/compress/2019/2448/jpeg/02t.jpg) Warty lichen (Pertusaria) on a big fallen oak in Hensel Park. College Station, Texas, February 12, 2019
![](../../pictures/archives/compress/2020/2636/jpeg/32t.jpg) Mealy rim-lichen (Lecanora strobilina) on a dry oak in Lick Creek Park. College Station, Texas, January 23, 2020
![](../../pictures/archives/compress/2018/2422/jpeg/16t.jpg) Sunken bloodspot lichen (Haematomma persoonii) on bark of a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
![](../../pictures/archives/compress/2020/2836/jpeg/27t.jpg) Sunken bloodspot lichen (Haematomma persoonii) on a recently fallen oak on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, December 26, 2020
![](../../pictures/archives/compress/2024/3606/jpeg/24t.jpg) Crustose lichen Pertusaria in ultraviolet light on a small mesquite tree on Post Oak Trail in Lick Creek Park. College Station, Texas, August 23, 2024
![](../../pictures/archives/compress/2020/2836/jpeg/28t.jpg) Close-up of sunken bloodspot lichen (Haematomma persoonii) on a recently fallen oak on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, December 26, 2020
![](../../pictures/archives/compress/2020/2836/jpeg/30t.jpg) Texture of sunken bloodspot lichen (Haematomma persoonii) on a recently fallen oak on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, December 26, 2020
![](../../pictures/archives/compress/2020/2836/jpeg/32t.jpg) Pattern od sunken bloodspot lichen (Haematomma persoonii) on a recently fallen oak on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, December 26, 2020
![](../../pictures/archives/compress/2020/2836/jpeg/29t.jpg) Sunken bloodspot lichen (Haematomma persoonii) with other crustose lichens on a recently fallen oak on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, December 26, 2020
![](../../pictures/archives/compress/2019/2450/jpeg/14t.jpg) Punctelia, Pertusaria and Phaeographis lichens on tree bark in Lick Creek Park. College Station, Texas, February 20, 2019
![](../../pictures/archives/compress/2020/2836/jpeg/31t.jpg) Sunken bloodspot lichen (Haematomma persoonii) with moss and other crustose lichens on a recently fallen oak on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, December 26, 2020
![](../../pictures/archives/compress/2024/3636/jpeg/03t.jpg) Pertusaria and other crustose lichen on bark of a small honey mesquite tree when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Lick Creek Park. College Station, Texas, October 25, 2024
![](../../pictures/archives/compress/2019/2530/jpeg/32t.jpg) Ramalina(?) lichen on a fallen twig of oak in Lick Creek Park. College Station, Texas, June 17, 2019
![](../../pictures/archives/compress/2019/2531/jpeg/14t.jpg) Southern crimson dot lichen (Ramboldia russula) in Lick Creek Park. College Station, Texas, June 18, 2019
![](../../pictures/archives/compress/2019/2531/jpeg/12t.jpg) Octopus-like palmetto lichen (Ramalina celastri) in Lick Creek Park. College Station, Texas, June 18, 2019
![](../../pictures/archives/compress/2019/2531/jpeg/13t.jpg) Perforated ruffle lichen (Parmotrema perforatum) in Lick Creek Park. College Station, Texas, June 18, 2019
![](../../pictures/archives/compress/2019/2531/jpeg/11t.jpg) Saucer lichen Ochrolechia pallescens on a fallen oak twig in Lick Creek Park. College Station, Texas, June 18, 2019
![](../../pictures/archives/compress/2019/2530/jpeg/27t.jpg) Perforated ruffle lichen (Parmotrema perforatum) on a twig in Lick Creek Park. College Station, Texas, June 17, 2019
![](../../pictures/archives/compress/2019/2531/jpeg/18t.jpg) Bushy beard lichen (Usnea strigosa) fallen from an oak in Lick Creek Park. College Station, Texas, June 18, 2019
![](../../pictures/archives/compress/2019/2530/jpeg/30t.jpg) Medallion lichen (Dirinaria confusa) on a fallen oak branch in Lick Creek Park. College Station, Texas, June 17, 2019
![](../../pictures/archives/compress/2019/2531/jpeg/10t.jpg) Southern crimson dot lichen (Ramboldia russula) on a fallen oak twig in Lick Creek Park. College Station, Texas, June 18, 2019
![](../../pictures/archives/compress/2019/2531/jpeg/09t.jpg) Perforated ruffle lichen (Parmotrema perforatum) on a fallen oak twig in Lick Creek Park. College Station, Texas, June 18, 2019
![](../../pictures/archives/compress/2019/2531/jpeg/19t.jpg) Slender orange bush lichen (Teloschistes exilis) on a fallen twig in Lick Creek Park. College Station, Texas, June 18, 2019
![](../../pictures/archives/compress/2019/2531/jpeg/07t.jpg) Perforated ruffle lichen (Parmotrema perforatum) and other foliose lichens on a fallen oak twig in Lick Creek Park. College Station, Texas, June 18, 2019
![](../../pictures/archives/compress/2019/2530/jpeg/28t.jpg) Perforated ruffle lichen (Parmotrema perforatum) on a fallen oak branch after windy weather in Lick Creek Park. College Station, Texas, June 17, 2019
![](../../pictures/archives/compress/2018/2423/jpeg/04t.jpg) Warty lichen (Pertusaria) on a stem of wax-leaf privet in Hensel Park. College Station, Texas, December 30, 2018
![](../../pictures/archives/compress/2019/2455/jpeg/33t.jpg) Warty lichen (Pertusaria) on concrete remains near the columns in Old Bailor park. Independence, Texas, February 27, 2019
![](../../pictures/archives/compress/2019/2455/jpeg/34t.jpg) Close up of warty lichen (Pertusaria) on concrete remains near the columns in Old Bailor park. Independence, Texas, February 27, 2019
![](../../pictures/archives/compress/2019/2426/jpeg/01t.jpg) Warty lichen (Pertusaria) on magnolia bark in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 5, 2019
![](../../pictures/archives/compress/2019/2435/jpeg/18t.jpg) 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
![](../../pictures/archives/compress/2019/2435/jpeg/29t.jpg) 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
![](../../pictures/archives/compress/2019/2437/jpeg/01t.jpg) Warty lichen (Pertusaria) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, January 26, 2019
![](../../pictures/archives/compress/2019/2615/jpeg/11t.jpg) Pertusaria lichen on a twig at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, December 21, 2019
![](../../pictures/archives/compress/2019/2510/jpeg/13t.jpg) Black Lecanora like lichen on granite cliffs in Monrepos Park in Vyborg. Russia, May 24, 2019
![](../../pictures/archives/compress/2019/2436/jpeg/10t.jpg) Warty lichen (Pertusaria) 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/2019/2437/jpeg/02t.jpg) Green crustose lichen Pertusaria on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, January 26, 2019
![](../../pictures/archives/compress/2019/2510/jpeg/14t.jpg) Black apothecia of Lecanora like lichen on granite cliffs in Monrepos Park in Vyborg. Russia, May 24, 2019
![](../../pictures/archives/compress/2019/2436/jpeg/18t.jpg) 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
![](../../pictures/archives/compress/2019/2445/jpeg/04t.jpg) Phaeographis lichen on an oak in Lick Creek Park. College Station, Texas, February 3, 2019
![](../../pictures/archives/compress/2019/2558/jpeg/33t.jpg) Warty lichen (Pertusaria) on bark of Mexican buckeye in Antique Rose Emporium. Independence, Texas, August 10, 2019
![](../../pictures/archives/compress/2019/2432/jpeg/05t.jpg) Button lichen (Buellia) in Lick Creek Park. College Station, Texas, January 18, 2019
![](../../pictures/archives/compress/2019/2445/jpeg/21t.jpg) Pyxine lichen on a tree in Lick Creek Park. College Station, Texas, February 3, 2019
![](../../pictures/archives/compress/2019/2432/jpeg/16t.jpg) Script lichen (Graphis) on an oak in Lick Creek Park. College Station, Texas, January 18, 2019
![](../../pictures/archives/compress/2019/2436/jpeg/19t.jpg) Warty lichen (Pertusaria)on a bark of a thin fallen tree on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, January 26, 2019
![](../../pictures/archives/compress/2019/2455/jpeg/13t.jpg) Brown-eyed rim-lichen (Lecanora allophana) lichen with brown apothecia on Mexican buckeye (Ungnadia speciosa) in Antique Rose Emporium. Independence, Texas, February 27, 2019
![](../../pictures/archives/compress/2019/2431/jpeg/16t.jpg) Speckled shield lichen (Punctelia) in Lick Creek Park. College Station, Texas, January 18, 2019
![](../../pictures/archives/compress/2019/2431/jpeg/18t.jpg) Ruffle lichen (Parmotrema) on a tree in Lick Creek Park. College Station, Texas, January 18, 2019
![](../../pictures/archives/compress/2019/2431/jpeg/10t.jpg) Saucer lichen Ochrolechia pallescens on oak in Lick Creek Park. College Station, Texas, January 18, 2019
![](../../pictures/archives/compress/2019/2432/jpeg/11t.jpg) Graphis lichen with orange alga on an oak in Lick Creek Park. College Station, Texas, January 18, 2019
![](../../pictures/archives/compress/2019/2431/jpeg/05t.jpg) Saucer lichen Ochrolechia pallescens in Lick Creek Park. College Station, Texas, January 18, 2019
![](../../pictures/archives/compress/2019/2450/jpeg/18t.jpg) Rosette lichen (Physcia) on a tree in Lick Creek Park. College Station, Texas, February 20, 2019
![](../../pictures/archives/compress/2019/2432/jpeg/06t.jpg) Speckled shield lichen (Punctelia) in Lick Creek Park. College Station, Texas, January 18, 2019
![](../../pictures/archives/compress/2019/2478/jpeg/24t.jpg) Turbin lichen (Cladonia peziziformis) in Lick Creek Park. College Station, Texas, April 5, 2019
![](../../pictures/archives/compress/2019/2436/jpeg/02t.jpg) Warty lichen (Pertusaria) on an oak in mixed pine and oak forest on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, January 26, 2019
![](../../pictures/archives/compress/2019/2450/jpeg/08t.jpg) Wrinkled loop lichen (Hypotrachyna livida) on an oak(?) in Lick Creek Park. College Station, Texas, February 20, 2019
![](../../pictures/archives/compress/2019/2450/jpeg/09t.jpg) Bark rash lichen (Pyrenula cruenta) in Lick Creek Park. College Station, Texas, February 20, 2019
![](../../pictures/archives/compress/2019/2431/jpeg/25t.jpg) Green powdery lichen on yaupon holly in Lick Creek Park. College Station, Texas, January 18, 2019
![](../../pictures/archives/compress/2019/2428/jpeg/03t.jpg) Powdery medallion lichen (Dirinaria applanata) in Lick Creek Park. College Station, Texas, January 9, 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/2019/2445/jpeg/14t.jpg) Fringe lichen Heterodermia with brown apothecis in Lick Creek Park. College Station, Texas, February 3, 2019
![](../../pictures/archives/compress/2019/2432/jpeg/17t.jpg) Lichen Cryptothecia striata on rough oak bark in Lick Creek Park. College Station, Texas, January 18, 2019
![](../../pictures/archives/compress/2019/2445/jpeg/17t.jpg) Saucer lichen Ochrolechia pallescens on an oak twig in Lick Creek Park. College Station, Texas, February 3, 2019
![](../../pictures/archives/compress/2019/2431/jpeg/22t.jpg) Powdery medallion lichen (Dirinaria applanata)(?) in Lick Creek Park. College Station, Texas, January 18, 2019
![](../../pictures/archives/compress/2019/2427/jpeg/03t.jpg) Medallion lichen (Dirinaria confusa) on yaupon in Lick Creek Park. College Station, Texas, January 6, 2019
![](../../pictures/archives/compress/2019/2432/jpeg/02t.jpg) Wrinkled loop lichen (Hypotrachyna livida) in Lick Creek Park. College Station, Texas, January 18, 2019
![](../../pictures/archives/compress/2019/2427/jpeg/04t.jpg) Close up of medallion lichen (Dirinaria confusa) in Lick Creek Park. College Station, Texas, January 6, 2019
|