Teleomorph: Ascostromata 100-150 µm diam, black, sessile, dispersed or aggregated in rows along the margins of the host lobes. Ascomatal wall ca 15 µm thick, of ± isodiametric cells 5-6 pm diam, with extracellular brown pigment. Interascal tissue of pseudoparaphyses ca 2 µm diam. Asci 78-92 x 11.5-13 µm, almost cylindrical, with a curved stipe, 4- to 6-spored. Ascospores 18-22 x 5.5-6.5 pm, ellipsoidal to clavate, 1-septate, not constricted at the septum, hyaline, smooth-walled, without a gelatinous sheath.