Hypogymnia bryophila McCune 2002
General description:
Appressed to suberect lattice of imbricate, noncontiguous, imperforate lobes with laminal soredia and isotomic dichotomous branching; K+ slow reddish brown, P+ or P-, KC+ orange red; only species of Hypogymnia with protocetraric but not physodalic acid, on mossy granitic rock