Lembosiaceae Hosag, in Hosagoudar et al., J. Mycopathol. Res. 39(1): 61 (2001).

MycoBank number: MB 521881; Index Fungorum number: IF 521881; Facesoffungi number: FoF 07609, 160 species.

Epiphytic on living leaves. Superficial hyphae with lateral appressoria. Sexual morph: Thyriothecia solitary, scattered, superficial, oval, ellipsoidal, X- or Y-shaped, easily removed from the host surface, black, opening by a linear fissure, with basal peridium poorly developed. Upper wall comprising linear, dark cells, which are branched at the margin. Hamathecium comprising vertical asci inclined upwards, pseudoparaphyses not observed. Asci bitunicate, fissitunicate dehiscence not observed, subglobose to ovoid, apedicellate, apical region of asci usually with a thick opaque region, ocular chamber not observed, not staining blue in IKI. Ascospores overlapping, oblong to obvoid, hyaline to brown, 1-septate. Asexual morph: Undetermined.

Type: Lembosia Lév.

Notes: Hosagoudar et al. (2001) introduced Lembosiaceae using the morphological character of elongate thyriothecia with longitudinal or X- or Y-shaped slits (Hongsanan et al. 2014b). However, Hongsanan et al. (2014b) treated Lembosiaceae as a synonym of Asterinaceae based on the first phylogenetic evidence of LSU sequence data of Lembosia albersii. Here, we re-introduced Lembosiaceae using sequence data currently available in GenBank.