Quite a lot on granite outcrops at the top of Mt. Wilson. Forms striking, beautiful greenish, lobate rosettes (sometimes confluent). At first closely-appressed, but in age the center buckles out and often comes off the rock completely. Abundant brownish-yellowish-greenish apothecia packed in the center. Lobe tips are somewhat thickened around the edge making them look a bit concave. Typically waxy in appearance, although it can be pruinose esp. near the tips. Though technically crustose, they often form a rudimentary lower cortex near the lobe tips, making them "honorary foliose" lichens. One of the few (of many many) Lecanora that can be reliably identified in the field.