TYPE. “On small dead branches of oak, Easton, Northamptonshire” (Berkeley & Broome 1852); UNITED KINGDOM, Berkeley s.n. (K, holotype).
Description. Non-lichenized, allied fungus.
Thallus immersed, appearing as a pale stain; photobiont absent. Ascomata perithecia, scattered, globose, emergent; ostiole apical, protruding. Asci cylindrical, 8-spored, uniseriate. Ascospores brown, 2-celled, ellipsoid, 22-28 x 9-12 μm with thick perispore, disappearing at maturity.
Substrate and Habitat. Corticolous on oaks and other hardwoods.
Distribution. Europe and eastern North America; in North Carolina reported from the Piedmont with additional records from the Blue Ridge ecoregion (see mycoportal.org).
Barr M.E. (1994) Notes on the Amphisphaeriaceae and related families. Mycotaxon 51: 191-224.
Berkeley, M.J. & C.E. Broome. (1852) Notices of British Fungi (615-639). Annals and Magazine of Natural History. Ser. 2. 9(52): 317-329 (original description as Sphaeria bufonia).
Nordén B., T. Læssøe, J.B. Jordal, J.H. Petersen, H. Voglmayr & W. Jaklitsch. (2015) Forty pyrenomycetous fungi belonging to Class Sordariomycetes new to Norway. Agarica 36: 43-54.