TYPE. UNITED STATES. New Jersey, Newfield, 1879, E. Almquist s.n. (H-NYL, S). “On outer bark of living Nyssa multiflora, Newfield, N. J., 1896.” (Nylander 1890).
Life form. Fungus of variable lichenization (Aptroot 1991).
Description.Thallus crustose, whitish to yellowish or brownish gray, blackened around ascomata, endophloedal; prothallus absent. Photobiont if present Trentepohlia. Ascomata perithecia, immersed to erumpent, subglobose, 0.8-1.2 mm diam., 0.6-0.9 mm high, broadly papillate, apex carbonized, smooth, shiny, sides roughened; ostiole black, conical, 50-80 μm diam. Hamathecium clear, gelatinized, K/I-; interascal hyphae pseudoparaphyses, abundant, branched at tips, 2-3 μm thick; periphyses absent. Asci clavate-cylindrical, ~150 x 12 μm 8-spored; ascospores brown, 4-7-cellled or submuriform, with round locules (distoseptate), (15-)22-31 x 7-11 μm; wall smooth, lacking perispore. Conidiomata not reported.
Chemistry. Spot tests negative; no substances detected by TLC.
Substrate and habitat. Corticolous on hardwood trees and shrubs in forests.
Distribution. Central to eastern North American disjunct; in North Carolina found in the Blue Ridge ecoregion.
Literature
Aptroot, A. (1991) A Monograph of the Pyrenulaceae (Excluding Anthracothecium and Pyrenula) and the Requienellaceae, with Notes on the Pleomassariaceae, the Trypetheliaceae and Mycomicrothelia (Lichenized and Non-lichenized Ascomycetes). Bibliotheca Lichenologica, Bd. 44, J. Cramer, Berlin, Stuttgart. 178 pp.
Boise, J. (1986) Requienellaceae, a new family of Loculoascomycetes. Mycologia78(1): 37-41.
Ellis, J.B. & B.M. Everhart (1886) New species of fungi from various localities. Journal of Mycology 2(9): 99-104 (original description as Lophiostoma subcollapsum).
Harris, R.C. (1995) More Florida Lichens. Including the 10¢ Tour of the Pyrenolichens. Published by the Author, Bronx, N.Y. 192 pp.