Mycelium white or cream-coloured, on leaves, dense. Hyphae 3-8 μm diam. Appressoria nipple-shaped.
Conidiophores erect, 90-140 μm long (fresh material), foot-cells straight or with a curved basal half, cylindrical, 35-70 × 11-14 μm, followed by 1-3 shorter cells. Conidia in chains, ellipsoidal to ovoid, after drying cylindric-ellipsoidal to doliiform, 25-38 × 12-20 μm (dry material), 30-40 × 17-25 μm (fresh material).
Ascomata cleistothecial, 70-150 μm diam., gregarious, hemispherical to almost spherical, the peridial cells irregularly shaped, 6-18 (–20) μm diam. Appendages in the lower part of the ascoma, numerous, 0.5-1.5 times as long as the ascoma diameter, 3-10 μm diam., thin-walled, smooth or somewhat rough, septate, brown throughout when mature. Asci numerous, 6-16 (–20), 40-67 (–75) × 20-35 (–40) μm, ellipsoidal to ovoid, stalked, 2- (rarely 3-) spored. Ascospores 20-30 × 10-18 μm, ellipsoidal to ellipsoid-ovoid, aseptate, hyaline, thin-walled.
Description adapted from Voytyuk et al. (2006).
Not formally assessed, but the species is common and widespread, and would certainly be considered as of Least Concern.
On living leaves of various species of Plantago, especially P. major.