Bacidia scopulicola  

Thallus pale olive-green to fawn-brown (sometimes dark green in extreme shade), mostly thick, warted and coarsely granular, with short, coralloid, isidium-like protuberances, or extreme morphs with soredia-like, ± loose granules 40-80 μm diam. Photobiont chlorococcoid with cells 5-10 μm diam.
Anamorph: conidiomata pycnidia, red-brown, ± immersed. Conidia 18-30 × ca 0.7 μm, strongly curved.
Teleomorph: ascomata apothecia, 0.4-1.3 mm diam., often few or absent, at first flat but soon convex and often irregularly shaped or tuberculate, pale to dark brown, often with a pink tinge, rarely black. Margin thick and usually darker than the disc, but often becoming excluded. True exciple orange-brown (K–) in the inner part, the outer and sometimes lower parts hyaline, of radiating, thick, densely gelatinized hyphae with narrow lumina (to 2 μm), but lumina near outer edge often widening to 5 (-7) μm. Hymenium 45-60 μm high, hyaline or with the lower part pale red-orange. Hypothecium hyaline except for the upper part (subhymenium) which is usually pale red-orange. Interascal tissue of paraphyses 1-1.5 μm diam., simple, often forked above, the apices sometimes slightly swollen to 2(-4) μm diam. Ascospores often coiled in the ascus, (21-) 29-45 (-51) × 1.7-2 μm, acicular, 3- to 7-septate, hyaline, smooth, without an epispore, gelatinous sheath or appendages. 
Chemistry: no lichen substances detected by TLC.