Extract from Wikipedia article: Lecanora strobilina is a species of lichen in the family Lecanoraceae. It was originally described as Parmelia strobilina by German botanist Kurt Polycarp Joachim Sprengel in 1827.
Mealy rim-lichen (Lecanora strobilina) on bark of oak in Lick Creek Park. College Station, Texas, January 18, 2019
Mealy rim-lichen (Lecanora strobilina) on an oak in Lick Creek Park. College Station, Texas, February 3, 2019 Iron Bridge Trail, College Station, TX 77845, USA
Mealy rim-lichen (Lecanora strobilina) on a tree in Lick Creek Park. College Station, Texas, February 3, 2019 Raccoon Run, College Station, TX 77845, USA
Mealy rim-lichen (Lecanora strobilina) on a dry oak in Lick Creek Park. College Station, Texas, January 23, 2020 2000 Campbell Ct, College Station, TX 77845, USA