Spores 5-6 × 2-3 µm long, inamyloid.
Ellipsoid but quite tapered at both ends
Hairs around cup septate and strongly tuberculate
Discoid ascomycetes with an olive green fertile surface and strikingly bright yellow-green fuzzy rim.
We all viewed these tiny specimens with a hand lens.
Very young specimens on cut end of what I believe was Comarostaphylis (summer holly) in the Channel Islands section of the garden.
Fruitbodies on underside of coast live oak leaf