Collection location: Avila Beach, California, USA [Click for map]
On crumbling Monterey shale bedrock outcrop.
Effigurate, whitish grey, tightly adnate thallus with few black pruinose apothecia. Thallus lobes with thick white pruina. Hymenium hyaline, hypothecium brown. Pycnidia common.
Spores 8/ascus, 1-septate, brown, “ornamented” barely discernable at 1000×.
The smaller round thallus on the left with the black outline (prothallus) may or may not be a younger version of Dimelaena radiata, I couldn’t tell and there were no reproductive structures.
|I’d Call It That||3.0||5.68||1||(J-Dar)|
sum(score * weight) /
(total weight + 1)