Meliolinaceae S. Hughes, Mycol. Pap. 166: 176 (1993).

MycoBank number: MB 81959; Index Fungorum number: IF 81959; Facesoffungi numbers: FoF 06889; 50 species.

Parasitic on living leaves. Colonies superficial, dense to subdense, black. Hyphae superficial, brown, straight to substraight, branched, septate, darker at septa, reticulate, with setiform phialides. Sexual morph: Ascomata globose to subglobose, dense, gregarious, with a central ostiole, verrucose. Hamathecium lacking paraphyses. Asci 4–8-spored, fissitunicate, ellipsoid to broadly clavate, evanescent. Ascospores overlapping 2–4-seriate, cylindrical, hyaline when young, becoming brown at maturity, 3-septate, end cells shorter and smaller, with hyaline subterminal bands. Asexual morph: Undetermined.

Type: Meliolina Syd. & P. Syd.

Notes: Meliolinaceae comprises a single genus Meliolina and 38 species, all but one of which are confined to members of Myrtaceae. Reynolds (1989) described Briania fruticetum as the mitosporic state of Meliolina, and this was accepted by Kirk et al. (2008). The only phylogenetic study of Meliolinaceae was carried out by Saenz and Taylor (1999), illustrating that it is a separate family from Meliolaceae. Lumbsch and Huhndorf (2010) and Wijayawardene et al. (2018) placed the family as Dothideomycetes incertae sedis.