Neophaeosphaeria filamentosa (Ellis & Everh.) M.P.S. Câmara et al., Mycol. Res. 107(5): 519 (2003)
≡ Leptosphaeria filamentosa Ellis & Everh., J. Mycol. 4(8): 76 (1888)
Pathogenic on dead parts in living leaves of Yucca filamentosa L. Sexual morph:Ascomata 115–157 μm high × 115–186 μm diam. (x̅ = 140 × 155 μm, n = 10), scattered or clustered in circular areas, immersed, depressed globose, with a small ostiolar pore slightly penetrating the surface through the host epidermis, under clypeus, coriaceous, dark brown to black, papilla not conspicuous. Peridium 18–30 μm (x̅ = 24 μm, n = 10) thick, composed of thin-walled, pseudoparenchymatous, cells of textura angularis. Hamathecium comprising 1.5–2.5 μm wide, cellular pseudoparaphyses, embedded in a gelatinous matrix. Asci 70–105 × 8–10 μm (x̅ = 85 × 10 μm, n = 20), 8-spored, bitunicate, fissitunicate, broadly cylindrical to oblong, with a short, broad pedicel apically rounded, 6–13 μm long, with an ocular chamber. Ascospores 12–15 × 4–5 μm (x̅ = 13 × 5 mm, n = 30), obliquely uniseriate and partially overlapping, yellowish brown, oblong, (1–)3-septate, constricted at the primary septum, cell above central septum widest, verruculose, containing four refractive globules. Asexual morph: Not observed in this collection.
Material examined: USA, New Jersey, Newfield, on dead parts in living leaves of Yucca filamentosa (Asparagaceae), July 1888, Ellis & Everhart (NY, holotype 00914294).