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Caloplaca etesiae (Nyl.) Du Rietz
Family: Teloschistaceae
Caloplaca etesiae image

Similar to Lecanora murorum, but spores oblong (or subfusiform-oblong), 1-septate, 0.009-0.014 millim. long, 0.0035-0.0045 millim. thick.—Above rock on Behringer Island.—Thallus egg yolk yellow (orange-yellow), opaque, turgid rays (almost 0.5 mm wide).  Apothecia orange, zeorine.  Spermatia circ. 0.0025 millim. long, 0.0005 millim. thick.