Armatellaceae Hosag., Sydowia 55(2): 165 (2003), Indexfungorum number: IF82149

Epiphytes on the surface of leaves. Superficial hyphae dense, branched, septate, brown to reddish, with hyphopodia,
hyphal setae lacking. Hyphopodia single stellate to sublobate on stalk cells, alternate on hyphae, 2-celled, brown to reddish. Sexual morph: Ascomata superficial on surface of hosts, scattered, flattened when immature, globose to subglobose at maturity, developing on hyphae, surface verrucose, covered with tuberculate projections, ascomatal setae and appendages lacking. Peridium comprising two strata, outer stratum amorphous and black, inner stratum, comprising reddish to brown, scleroparenchymatous cells of textura angularis to globulosa. Hamathecium with paraphyses, evanescent. Asci 4–8-spored, unitunicate, ovoid to clavate. Ascospores 2–3-seriate, hyaline
to light brown, ellipsoidal to oblong, 1-septate. Asexual morph: Undetermined.

Type: Armatella Theiss. & Syd.

Notes: The family Armatellaceae was introduced by Hosagoudar (2003), with the generic type Armatella, which is a monotypic genus (Hosagoudar 2003; Hosagoudar et al. 2012; Hongsanan et al. 2015). Hongsanan et al. (2015) accepted Armatellaceae as a separate family from Meliolaceae, which is followed in this study because it has superficial hyphae without phialides, ascomata covered with tuberculate projections, and comprising scleroparenchymatous cells, aseptate to 1-septate, hyaline to light brown ascospores, while Meliolaceae has superficial hyphae mostly with phialides, ascomata with raised conoid cells, and 3–4-septate, hyaline to dark brown ascospores (Hongsanan et al. 2015).