Nash, T.H., Ryan, B.D., Gries, C., Bungartz, F., (eds.) 2004. Lichen Flora of the Greater Sonoran Desert Region. Vol 2.
Life habit: lichenicolous Perithecia: initially immersed in the host thallus and apothecia, later erumpent, subspherical, ostiolate, exposed parts black, 60-120 µm in diam. centrum: entirely I-, K/I- wall: in section dark reddish brown in upper exposed parts, K-, entirely colorless in immersed parts, 15-25 µm thick, sometimes slightly thicker in exposed parts, pseudoparenchymatous; cells: in section elongate, 5-9 x 1.5-3.5 µm periphyses: abundantly developed, hyaline, septate, branched asci: ellipsoid to shortly clavate, apically thick-walled, 25-30 x 15-20 µm, ascospores: pale olivaceous brown, 1-septate, ovoid to ellipsoid, smooth-walled, 3.5-5 x 1.7-2.3 µm; septum and wall: thin, c. 0.2 µm thick; perispore absent Pycnidia: not observed. Host: thallus and apothecia of a corticolous Lecanactis, not visibly damaged by the presence of the fungus World and Sonoran distribution: known only from the type locality in southern California just north of the Sonoran region.