Growing on bark
Highly toothed leaves on these canyon oaks
Went back for close-ups of this...
on found on eldridge grade, the other on the start of tucker trail up from phoenix lake (where there tends to be a lot of them.)
I think these are fecal droppings from dogs... I was seeing the mold covered dropping near the beginning of the trail in to the park. I have numerous photos o them, illuminating their covering of 2-3 inch long "micro-stalks"
along trail above lagunitas drive - the trail cuts through an shaded area with may 25-50 plants.