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Also possible this is Psora decipiens. Growing on bare soil. Observed after 2 days of rain.

on limestone

on limestone

AB 32 in limestone crack

Sandy bluff prairie

K+red
On calcareous sandstone in part shade

On limestone

Squamulose lichen growing on south-facing roadside boulder, collected a portion.

tentative ID

Parasitic on Spilonema revertens. Cortex K–, C–, KC–; medulla K+ yellow (faintly), C–, KC–.

On sheltered NE-exposed face of granite exposure, with Peltula euplota.

Brightly fluorescent, pretty common under redwoods.

on rock

on huckleberry leaf

There’s a lil springtail(?) I didn’t see when I took the photo!

Not sure the date, found a year or so ago under redwood trees.

No pixie cups..

On granite

on mineral soil

On calcareous sandstone, bluff prairie. Apothecia C+red turning deep red, K-, KC-

Different chemical race of P. pseudorussellii?

Ingleside Formation (red sandstones)

Check. On metavocanic rock