Nash, T.H., Ryan, B.D., Gries, C., Bungartz, F., (eds.) 2004. Lichen Flora of the Greater Sonoran Desert Region. Vol 2.

Thallus: crustose, continuous, thin to rather thick, ±rimose; prothallus: absent or sometimes present as a thin black line bordering the thallus surface: pale gray, warted or wrinkled Apothecia: at first flat, remaining so or becoming slightly convex, 0.4-0.8 mm in diam. disc: black, epruinose margin: black except sometimes lower part (±brown), distinct, at first raised above disc, soon level with with disc, persistent, sometimes with thin white pruina exciple: laterally 50-100 µm wide, without crystals, interior colorless, pale yellow (K+ intensifying, N-) or ±blotchy red-brown (K+ purplish, N+ orange), fading below, rim darker than interior, red-brown (K+ purplish, N+ orange), sometimes with green in uppermost part bordering hymenium (K-, N+ purple), fading below or not; edge with single cell layer of enlarged cell lumina (up to 6 µm wide) epithecium: green (K-, N+ purple) in distinct layer, without crystals hymenium: hyaline, 60-80 µm tall; paraphyses: 1-1.5 µm wide in mid-hymenium, apices ±clavate or only slightly swollen, 1.5-4.5 µm wide, without distinct hoods of pigment hypothecium: hyaline or pale yellow (K+ intensifying, N-) asci: clavate, 8-spored ascospores: hyaline, 5-7-septate, acicular, straight to curved, 34-60 x 2.5-4 µm Pycnidia: not seen Spot tests: K+ faintly yellow Secondary metabolites: traces of atranorin. Habitat and ecology: on bark of Jatropha World distribution: New and Old World tropics, known from South and Central America and East Asia Sonoran distribution: known from a single locality near the south tip of Baja California Sur. Notes: Bacidia salazarensis is closely related to B. heterochroa, from which it differs mainly by its green epithecium, slightly shorter hymenium, and fewer septate ascospores. Also, B. salazarensis differs chemically from western populations of B. heterochroa by the presence of atranorin. Due to its pigmentation, B. salazarensis is superficially similar to the distantly related B. circumspecta, which is distinguished by its brown excipular pigments being more drab, and the usually 3-septate, bacilliform or clavate ascospores.