Nash, T.H., Ryan, B.D., Gries, C., Bungartz, F., (eds.) 2004. Lichen Flora of the Greater Sonoran Desert Region. Vol 2.
Thallus: crustose, effuse, 60-90 µm thick surface: white or beige, dull, esorediate cortex: indistinct or up to 12 µm thick, filled with minute granules Apothecia: single, rounded or +flexuose, sessile with constricted base, 0.4-0.9 mm in diam. disc: red-brown to black, often a mixture of both colors, dull, epruinose or with bluish gray pruina exciple: concolorous with disc, slightly prominent, mostly persistent, rarely excluded with age, in section colorless or pale gray due to gray-brown granules, red-brown to olive-brown marginally, laterally 45-65 µm wide, basally 90-120 µm wide epihymenium: red- to olive-brown due to amorphous pigment, with minute granules, HCl+ pale green, K+ pale green, N+ rose-red, N/K+ yellowish green, P+ red (needle-shaped crystals) hymenium: hyaline, c. 65 µm tall; paraphyses with lumina of 0.8-1.0 µm, apically 1-2 µm width, mostly simple with few branches and anastomoses in lower parts of hymenium hypothecium and subhymenium: together 100-160 µm thick asci: clavate, 40-50 x 14-18 µm, 8-spored ascospores: hyaline, simple, ellipsoid, 13-20 x 7-10 µm; walls: 1-1.5 µm thick, sometimes with a perispore 0.5 µm thick Pycnidia: not observed Spot tests: thallus K-, C- KC-, P- Secondary metabolites: atranorin, chloroatranorin, 3-chlorostenosporic acid, 3-chloroperlatolic acid (major), 3-chlorodivaricatic acid (accessory). Substrate and ecology: growing on bark of Pinus World and Sonoran distribution: so far only known from around the type locality between Mazatlán and Durango in the Sierra Madre Occidental of Sinaloa, Mexico. Notes: Japewiella pacifica is distinguished from the European J. carrollii by the presence of granules within the thallus and exciple, a much thicker hypothecium and subhymenium, and a different chemistry (only atranorin in