Eopyrenula leucoplaca (Wallr.) R.C. Harris, Michigan Bot. 12(1): 19 (1973).
≡ Verrucaria leucoplaca Wallr., Fl. crypt. Germ. (Norimbergae) 1: 299 (1831).
Index Fungorum number: IF 341935; Facesoffungi number: FoFxxx, Fig. 1
Lichenicolous or with a lichenized thallus. Sexual morph: Ascomata 485–500 µm diam. × 465–550 µm high, perithecioid, with a central ostiole, lacking setae, dark brown to black, semi-immersed to superficial, subglobose to obpyriform, solitary, sometimes clustered, scattered over the host thallus or apothecia, carbonaceous. Peridium 45–60 µm thick-walled, composed of several layers of dark brown cells of textura epidermoidea. Hamathecium 0.9–2.7 µm of numerous, branched and anastomosing, cellular pseudoparaphyses. Asci 145–185 µm × 12–15 µm (x̅ = 164.8 × 14.2 µm, n = 10), 8-spored, bitunicate, elongate clavate to short-cylindrical, short-pedicellate, apically rounded, with well-developed ocular chamber. Ascospores 17–25 µm × 7–9 µm (x̅ = 20.2 × 8.1 µm, n = 10), overlapping 1–2-seriate, phragmosporous, brown to dark brown, paler at the end cells, ellipsoidal to fusiform, 3-septate, often constricted at the septa, smooth to rough-walled. Asexual morph: Unknown.
Material examined: Italy, Verona Province, on decorticated wood, Massalongo (M0205357, syntype).