Dactylospora stygia  

Anamorph: not known.
Teleomorph: stromata absent. Ascomata apothecia, 1-1.5 (-2) mm diam., scattered or clustered, superficial, discoid, leathery with a slightly raised margin that becomes excluded, widely attached to the substrate, seated on a mat of hyphae. Epithecium composed of hyaline to brown amorphous matter surrounding the paraphysis tips. Ectal excipulum composed of brown thick-walled rectangular cells 10–20 x 5–8 µm in size, almost perpendicular to the external surface, the outer layer with a rounded apex. Medullary excipulum composed of brown intertwined hyphal tissue running almost horizontally, embedded in a gelatinous matrix. Interascal tissue composed of filiform paraphyses 1.5–2 µm diam., septate toward the enlarged apex (to ca 4 µm diam.), extending beyond the asci to form the epithecium, embedded in a gelatinous matrix. Asci 55–75 x 12–15 µm, clavate, thick-walled, the entire wall staining blue in iodine (more strongly so towards the apex). Ascospores arranged biseriately, 15–19 x 4–5 µm, narrowly ellipsoidal to fusiform-ellipsoidal, with a ± median septum, usually hardly constricted, becoming olivaceous brown, inconspicuously striate, each cell often two-guttulate.