"On Arctostaphylos sp. trunk bark. Mid-late mature dwarf forest chaparral of Arctostaphylos spp. /Quercus chrysolepis/Quercus agrifolia/Torreya californica; occasional Chrysolepis chrysophylla. "
I think I've got this right! Any corrections?
On branch of living alder by shoreline.
irregular lobes, numerous insidia on margins (that look ragged), upper surface (greenish) white with brown on edges (more white than the other example earlier today)