Anamorph: conidiomata in the same stromata as ascomata and morphologically indistinguishable from them, or solitary and embedded in young host shoots. Conidiogenous cells 6–22 × 2–5 μm, subcylindrical, proliferating percurrently with 1–2 annellations or at the same level to form periclinal thickenings. Conidia (16–) 19–23 (–24) × 5–6 (–7) μm, fusiform, sometimes irregular, the base ± truncate, hyaline, aseptate, rarely septate with age, smooth with granular contents. Spermatia not reported. Dichomera synanamorph: conidia (7–) 8–13.5 (–17) × (6.5–) 7–9.5 (–10.5) μm, subglobose, obpyriform or rarely obovoid to broadly fusiform or fusiform (then (12–) 13.5–22.5 (–24) × (5–) 5.5–8 μm in size), apex ± obtuse, base truncate to bluntly rounded, hyaline to pale brown when immature with one transverse septum and 0–2 longitudinal septa, becoming brown when mature with 1–4 transverse septa, 0–3 longitudinal septa, and 0–4 oblique septa; broadly fusiform to fusiform conidia brown with 2–7 transverse septa and 0–2 oblique septa. Teleomorph: stromata 100–400 μm diam., erumpent through the bark, pulvinate. Ascomata 175–250 μm, forming botryose aggregates of 5–50, globose with a central ostiole, papillate or not, brown to black. Peridium comprising 5–15 layers of angular cells, outer region dark brown, inner region hyaline. Interascal tissue of filiform, septate, rarely branched pseudoparaphyses 2–4 μm diam. Asci 80–120 × 17–20 μm, clavate, thick-walled, fissitunicate, 8-spored. Ascospores arranged biseriately, (14–) 18–23 (–27) × 6–8 (–10) μm, fusiform to ellipsoidal, often round at the ends then broadly ellipsoidal, hyaline, aseptate, smooth with granular contents, without an epispore or gelatinous sheath.