![](../../pictures/archives/compress/2019/2431/jpeg/24t.jpg) Powdery medallion lichen (Dirinaria applanata)(?) on a tree in Lick Creek Park. College Station, Texas, January 18, 2019
![](../../pictures/archives/compress/2019/2428/jpeg/04t.jpg) Powdery medallion lichen (Dirinaria applanata) on a small hackberry tree in Lick Creek Park. College Station, Texas, January 9, 2019
![](../../pictures/archives/compress/2019/2431/jpeg/13t.jpg) Powdery medallion lichen (Dirinaria applanata)(?) in Lick Creek Park. College Station, Texas, January 18, 2019
![](../../pictures/archives/compress/2019/2432/jpeg/03t.jpg) Powdery medallion lichen (Dirinaria applanata) 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/22t.jpg) Powdery medallion lichen (Dirinaria applanata)(?) in Lick Creek Park. College Station, Texas, January 18, 2019
![](../../pictures/archives/compress/2019/2432/jpeg/12t.jpg) Powdery medallion lichen (Dirinaria applanata)(?) in Lick Creek Park. College Station, Texas, January 18, 2019
![](../../pictures/archives/compress/2019/2431/jpeg/11t.jpg) Powdery medallion lichen (Dirinaria applanata) in Lick Creek Park. College Station, Texas, January 18, 2019
![](../../pictures/archives/compress/2019/2431/jpeg/20t.jpg) Powdery medallion lichen (Dirinaria applanata)(?) on yaupon holly in Lick Creek Park. College Station, Texas, January 18, 2019
![](../../pictures/archives/compress/2019/2431/jpeg/17t.jpg) Powdery medallion lichen (Dirinaria applanata) on yaupon holly in Lick Creek Park. College Station, Texas, January 18, 2019
![](../../pictures/archives/compress/2019/2431/jpeg/23t.jpg) Close up of powdery medallion lichen (Dirinaria applanata)(?) on yaupon holly in Lick Creek Park. College Station, Texas, January 18, 2019
![](../../pictures/archives/compress/2019/2438/jpeg/21t.jpg) 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
![](../../pictures/archives/compress/2019/2436/jpeg/09t.jpg) Powdery medallion lichen (Dirinaria applanata) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville. Texas, January 26, 2019
![](../../pictures/archives/compress/2019/2427/jpeg/25t.jpg) Powdery medallion lichen (Dirinaria applanata) on an oak in cemetery at Mission de Cristo Jesus Church at road 259 in Port Sullivan, west from Hearne. Texas, January 8, 2019
![](../../pictures/archives/compress/2019/2433/jpeg/10t.jpg) Powdery medallion lichen (Dirinaria applanata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
![](../../pictures/archives/compress/2019/2427/jpeg/28t.jpg) Powdery medallion lichen (Dirinaria applanata) on a tombstone 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/29t.jpg) 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
![](../../pictures/archives/compress/2018/2424/jpeg/19t.jpg) Powdery medallion lichen (Dirinaria applanata) on bark of a tree in Odd Fellow Cemetery. Anderson, Texas, December 31, 2018
![](../../pictures/archives/compress/2019/2427/jpeg/30t.jpg) Powdery medallion lichen (Dirinaria applanata) on a cemented brick in cemetery at Mission de Cristo Jesus Church at road 259 in Port Sullivan, west from Hearne. Texas, January 8, 2019
![](../../pictures/archives/compress/2018/2424/jpeg/14t.jpg) Powdery medallion lichen (Dirinaria applanata) on bark of a crape myrtle tree in Odd Fellow Cemetery. Anderson, Texas, December 31, 2018
![](../../pictures/archives/compress/2018/2424/jpeg/15t.jpg) Pattern of powdery medallion lichen (Dirinaria applanata) on bark of a crape myrtle tree in Odd Fellow Cemetery. Anderson, Texas, December 31, 2018
![](../../pictures/archives/compress/2021/2917/jpeg/08t.jpg) Powdery medallion lichen (Dirinaria applanata) on a tree on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, April 24, 2021
![](../../pictures/archives/compress/2018/2424/jpeg/18t.jpg) Powdery medallion lichen (Dirinaria applanata) on low tombstone in Odd Fellow Cemetery. Anderson, Texas, December 31, 2018
![](../../pictures/archives/compress/2018/2423/jpeg/24t.jpg) Powdery medallion lichen (Dirinaria applanata)(?) on a petrified wood tomstone in Odd Fellow Cemetery. Anderson, Texas, December 31, 2018
![](../../pictures/archives/compress/2018/2423/jpeg/23t.jpg) Powdery medallion lichen (Dirinaria applanata)(?) on a tombstone made from petrified wood in Odd Fellow Cemetery. Anderson, Texas, December 31, 2018
![](../../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/2019/2427/jpeg/04t.jpg) Close up of medallion lichen (Dirinaria confusa) in Lick Creek Park. College Station, Texas, January 6, 2019
![](../../pictures/archives/compress/2019/2432/jpeg/01t.jpg) Medallion lichen (Dirinaria confusa) on yaupon holly in Lick Creek Park. College Station, Texas, January 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/2021/2890/jpeg/07t.jpg) Medallion lichen (Dirinaria confusa) on bark of a Mexican plum tree in Lick Creek Park. College Station, Texas, March 24, 2021
![](../../pictures/archives/compress/2019/2434/jpeg/22t.jpg) 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
![](../../pictures/archives/compress/2019/2434/jpeg/23t.jpg) 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
![](../../pictures/archives/compress/2019/2440/jpeg/22t.jpg) Medallion lichen (Dirinaria) on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 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/2019/2444/jpeg/07t.jpg) Medallion lichen Dirinaria confusa on a tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 2, 2019
![](../../pictures/archives/compress/2019/2444/jpeg/09t.jpg) Medallion lichen Dirinaria confusa on an old tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 2, 2019
![](../../pictures/archives/compress/2019/2619/jpeg/09t.jpg) Medallion lichen (Dirinaria confusa) on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
![](../../pictures/archives/compress/2019/2430/jpeg/04t.jpg) Medallion lichen (Dirinaria confusa) on an oak in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 12, 2019
![](../../pictures/archives/compress/2019/2619/jpeg/10t.jpg) Apothecia of medallion lichen (Dirinaria confusa) on bark of hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
![](../../pictures/archives/compress/2019/2430/jpeg/05t.jpg) Close up of medallion lichen (Dirinaria confusa) on an oak in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 12, 2019
![](../../pictures/archives/compress/2019/2433/jpeg/03t.jpg) Medallion lichen (Dirinaria confusa) on hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
![](../../pictures/archives/compress/2019/2433/jpeg/12t.jpg) Medallion lichen (Dirinaria confusa) with black apothecia in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
![](../../pictures/archives/compress/2019/2433/jpeg/24t.jpg) Black apothecia of medallion lichen (Dirinaria confusa) in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
![](../../pictures/archives/compress/2019/2433/jpeg/04t.jpg) Close up of medallion lichen (Dirinaria confusa) on hackberry in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 23, 2019
![](../../pictures/archives/compress/2021/2884/jpeg/14t.jpg) Medallion lichen Dirinaria confusa on a juniper tree in McKinney Roughs Nature Park near Austin. Texas, March 17, 2021
![](../../pictures/archives/compress/2019/2440/jpeg/12t.jpg) Medallion lichen (Dirinaria)(?) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, February 1, 2019
![](../../pictures/archives/compress/2022/3147/jpeg/13t.jpg) Crustose lichen Dirinaria applanata(?) on a wooden pole in Research Park on campus of Texas A and M University. College Station, Texas, May 6, 2022
![](../../pictures/archives/compress/2018/2424/jpeg/06t.jpg) Medallion lichen (Dirinaria confusa) on a tree in Odd Fellow Cemetery. Anderson, Texas, December 31, 2018
![](../../pictures/archives/compress/2021/2884/jpeg/15t.jpg) Medallion lichen Dirinaria confusa with black apothecia on a juniper tree in McKinney Roughs Nature Park near Austin. Texas, March 17, 2021
![](../../pictures/archives/compress/2022/3147/jpeg/14t.jpg) Close-up of crustose lichen Dirinaria applanata(?) on a wooden pole in Research Park on campus of Texas A and M University. College Station, Texas, May 6, 2022
![](../../pictures/archives/compress/2018/2424/jpeg/07t.jpg) Close up of medallion lichen (Dirinaria confusa) on a tree in Odd Fellow Cemetery. Anderson, Texas, December 31, 2018
![](../../pictures/archives/compress/2018/2424/jpeg/08t.jpg) Medallion lichen (Dirinaria confusa) on a hackberry(?) tree in Odd Fellow Cemetery. Anderson, Texas, December 31, 2018
![](../../pictures/archives/compress/2018/2424/jpeg/09t.jpg) Medallion lichen (Dirinaria confusa) near the base of a hackberry(?) tree in Odd Fellow Cemetery. Anderson, Texas, December 31, 2018
![](../../pictures/archives/compress/2018/2424/jpeg/10t.jpg) Medallion lichen (Dirinaria confusa) with large black apothecia near the base of a hackberry(?) tree in Odd Fellow Cemetery. Anderson, Texas, December 31, 2018
![](../../pictures/archives/compress/2019/2429/jpeg/33t.jpg) Dirinaria lichen on a dry red cedar tree in Pedernales Falls State Park. Johnson City, Texas, January 11, 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/2019/2453/jpeg/27t.jpg) Close up of Dirinaria lichen on a tree on Kiwanis Nature Trail, College Station, Texas, February 26, 2019
![](../../pictures/archives/compress/2019/2453/jpeg/24t.jpg) Dirinaria lichen on tree bark on Kiwanis Nature Trail, College Station, Texas, February 26, 2019
![](../../pictures/archives/compress/2019/2444/jpeg/08t.jpg) Medallion lichen Dirinaria confusa on an oak in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 2, 2019
![](../../pictures/archives/compress/2018/2422/jpeg/13t.jpg) Medallion lichen (Dirinaria confusa) on bark of a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
![](../../pictures/archives/compress/2019/2444/jpeg/06t.jpg) Medallion lichen (Dirinaria confusa) on an oak(?) branch in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 2, 2019
![](../../pictures/archives/compress/2019/2444/jpeg/10t.jpg) Texture of medallion lichen Dirinaria confusa on an oak in Washington-on-the-Brazos State Historic Site. Washington, Texas, February 2, 2019
![](../../pictures/archives/compress/2018/2422/jpeg/14t.jpg) Close up of medallion lichen (Dirinaria confusa) on bark of a hackberry tree in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
![](../../pictures/archives/compress/2019/2619/jpeg/02t.jpg) Medallion lichen (Dirinaria confusa) on a branch of "Liberty Oak" in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 28, 2019
![](../../pictures/archives/compress/2019/2453/jpeg/18t.jpg) Dirinaria lichen on a tree in David E. Schob Nature Preserve at 906 Ashburn Street. College Station, Texas, February 26, 2019
![](../../pictures/archives/compress/2020/2630/jpeg/20t.jpg) Medallion lichen (Dirinaria confusa) on Liberty Oak in Washington-on-the-Brazos State Historic Site. Washington, Texas, January 18, 2020
![](../../pictures/archives/compress/2018/2422/jpeg/24t.jpg) Medallion lichen (Dirinaria confusa) on a dry(?) trunk of a bush-like tree of huisache (Acacia minuata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
![](../../pictures/archives/compress/2018/2422/jpeg/22t.jpg) Medallion lichen (Dirinaria confusa) on one of trunks of a bush-like tree of huisache (Acacia minuata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
![](../../pictures/archives/compress/2018/2422/jpeg/28t.jpg) Close up of medallion lichen (Dirinaria confusa) on a dry(?) trunk of a bush-like tree of huisache (Acacia minuata) in Washington-on-the-Brazos State Historic Site. Washington, Texas, December 29, 2018
![](../../pictures/archives/compress/2023/3316/jpeg/04t.jpg) White powdery, with stripes corticioid fungus on a fallen hardwood tree in Lick Creek Park. College Station, Texas, January 2, 2023
![](../../pictures/archives/compress/2023/3316/jpeg/05t.jpg) Texture of white powdery, with stripes corticioid fungus on a fallen hardwood tree in Lick Creek Park. College Station, Texas, January 2, 2023
![](../../pictures/archives/compress/2023/3316/jpeg/07t.jpg) Margin of white powdery, with stripes corticioid fungus on a fallen hardwood tree in Lick Creek Park. College Station, Texas, January 2, 2023
![](../../pictures/archives/compress/2023/3316/jpeg/08t.jpg) Close-up of white powdery, with stripes corticioid fungus on a fallen hardwood tree in Lick Creek Park. College Station, Texas, January 2, 2023
![](../../pictures/archives/compress/2023/3320/jpeg/15t.jpg) Spores of white powdery, with stripes corticioid fungus from a fallen hardwood tree, collected a day before in Lick Creek Park. College Station, Texas, January 3, 2023
![](../../pictures/archives/compress/2021/2883/jpeg/21t.jpg) Medallion lichen Dirinaria confusa with black apothecia on juniper bark in McKinney Roughs Nature Park near Austin. Texas, March 17, 2021
![](../../pictures/archives/compress/2023/3320/jpeg/14t.jpg) Spores (in lugol) of white powdery, with stripes corticioid fungus from a fallen hardwood tree, collected a day before in Lick Creek Park. College Station, Texas, January 3, 2023
![](../../pictures/archives/compress/2021/2883/jpeg/22t.jpg) Close-up of medallion lichen Dirinaria confusa with black apothecia on juniper bark in McKinney Roughs Nature Park near Austin. Texas, March 17, 2021
![](../../pictures/archives/compress/2019/2425/jpeg/05t.jpg) Speckled blister lichen Trypethelium tropicum (Nigrovothelium tropicum) on bark of hackberry tree in Lick Creek Park. College Station, Texas, January 1, 2019
![](../../pictures/archives/compress/2019/2425/jpeg/06t.jpg) Speckled blister lichen Trypethelium tropicum (Nigrovothelium tropicum) with black perithecia on bark of hackberry tree in Lick Creek Park. College Station, Texas, January 1, 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/2019/2425/jpeg/07t.jpg) Bark sulphur-firedot lichen (Gyalolechia flavorubescens, Caloplaca flavorubescens) on bark of hackberry tree in Lick Creek Park. College Station, Texas, January 1, 2019
![](../../pictures/archives/compress/2020/2632/jpeg/06t.jpg) Dirinaria lichen on a tree in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 19, 2020
![](../../pictures/archives/compress/2019/2425/jpeg/08t.jpg) Texture of bark sulphur-firedot lichen (Gyalolechia flavorubescens, Caloplaca flavorubescens) on bark of hackberry tree in Lick Creek Park. College Station, Texas, January 1, 2019
![](../../pictures/archives/compress/2019/2425/jpeg/10t.jpg) Pattern of bark sulphur-firedot lichen (Gyalolechia flavorubescens, Caloplaca flavorubescens) on bark of hackberry tree in Lick Creek Park. College Station, Texas, January 1, 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/2019/2450/jpeg/18t.jpg) Rosette lichen (Physcia) on a tree in Lick Creek Park. College Station, Texas, February 20, 2019
![](../../pictures/archives/compress/2019/2425/jpeg/09t.jpg) Orange apothecia of bark sulphur-firedot lichen (Gyalolechia flavorubescens, Caloplaca flavorubescens) on bark of hackberry tree in Lick Creek Park. College Station, Texas, January 1, 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/2019/2445/jpeg/26t.jpg) Physcia lichen with brown apothecia on a tree 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/2019/2530/jpeg/31t.jpg) Dirinaria confusa together with other lichens on a fallen oak branch in Lick Creek Park. College Station, Texas, June 17, 2019
![](../../pictures/archives/compress/2019/2450/jpeg/15t.jpg) White fringe lichen (Heterodermia albicans) on a tree in Lick Creek Park. College Station, Texas, February 20, 2019
![](../../pictures/archives/compress/2019/2445/jpeg/28t.jpg) White fringe lichen (Heterodermia albicans) on a tree in Lick Creek Park. College Station, Texas, February 3, 2019
![](../../pictures/archives/compress/2020/2636/jpeg/25t.jpg) Beard lichen (Usnea) fallen from a tree in Lick Creek Park. College Station, Texas, January 23, 2020
![](../../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/2019/2432/jpeg/05t.jpg) Button lichen (Buellia) in Lick Creek Park. College Station, Texas, January 18, 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/19t.jpg) Rough speckled shield lichen (Punctelia rudecta) on a tree in Lick Creek Park. College Station, Texas, February 3, 2019
![](../../pictures/archives/compress/2019/2450/jpeg/19t.jpg) Rough speckled shield lichen (Punctelia rudecta) on a tree in Lick Creek Park. College Station, Texas, February 20, 2019
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