On Pertusaria sp. (TBD) on scrub oak bark. Appearing black but actually dark brown overall. Capitulum 0.25mm wide by 0.18mm tall. All parts K+? (second to last photo). Some violet reddish color but not intense, maybe pigments bleeding? [EDIT: confirmed K- (last photo)]. Stalk disintegrates in K (photos). Stalk prosoplectenchymatous, 0.29mm. Ascus cylindrical, ~39-45x6µm. Spores dark brown, subglobose, ~6.5x5.5µm.