Nash, T.H., Ryan, B.D., Gries, C., Bungartz, F., (eds.) 2002. Lichen Flora of the Greater Sonoran Desert Region. Vol 1.
Thallus: continuous, immersed in the substrate upper surface: whitish, dull, smooth photobiont: absent Perithecia: hemispherical, black, semi-immersed in the thallus, c. 0.5-1 mm diam. involucrellum: dark brown; exciple: thin Ascomatal wall: black, absent below the hamathecium hamathecium: branched pseudoparaphyses, anastomosing above the asci; filaments: c. 1 micrometer wide, not inspersed with oil droplets asci: clavate, c. 70-100 x 20-25 micrometer, thick-walled, with 8, irregularly arranged ascospores ascospores: hyaline, long ellipsoid to broadly fusiform, densely muriform, 25-40 x 8-13 micrometer; walls: not ornamented, without or with a c. 2-4 micrometer wide gelatinous sheath Pycnidia: not seen Spot tests: all negative, UV negative Secondary metabolites: none detected. Substrate and ecology: on bark of various woody plants, including Salvia, Jatropha, Lonicera, Quercus, Bursera World distribution: pantropical or possibly nearly cosmopolitan Sonoran distribution: rather common; recorded from California (including the Channel Islands), Baja California Sur and Sonora.