Morenoinaceae Hongsanan & K.D. Hyde, fam. nov.

MycoBank number: MB 557813; Index Fungorum number: IF 557813; Facesoffungi number: FoF 07611, 26 species.

Saprobic on stem or leaves, forming blackened areas. Sexual morph: Thyriothecia solitary, aggregated, or gregarious, superficial, easily removed from the host surface, black, ellipsoid, oblong, curved, opening by X- or Y-shaped or linear fissures, branched at the margin, from the center to the outer rim, lacking free hyphae and appressoria at the margin. Upper wall comprising linear, dark cells, which are branched at the margin, radiating from the center to the outer rim. Hamathecium pseudoparaphyses not observed. Asci 8-spored, bitunicate, fissitunicate dehiscence not observed, subglobose to oblong or saccate to globose, apedicellate, ocular chamber not observed, or with a distinct, thickened apical region. Ascospores overlapping 2–3-seriate, oblong to obvoid, or fusiform, hyaline, 1-septate, constricted at the septum, with or without guttules, smooth-walled (Hongsanan et al. 2014b; Tibpromma et al. 2017). Asexual morph: Coelomycetous. “Sirothyriella”, Pycnothyria circular, radially scutellate. Conidiogenous cells holoblastic, simple, hyaline. Conidia cylindrical, hyaline, 1-celled (asexual morph from Sivanesan 1984; drawing of asexual characters can be seen in Ellis 1980).

Type: Morenoina Theiss.

Notes: Morenoinaceae resembles Aulographaceae (Hongsanan et al. 2014b). In our phylogenetic analyses (Fig. 5), Morenoina calamicola is closely related to More- noina palmicola (MFLUCC 15-0284) with 67% ML and 0.93 BYPP support as a distinct clade within Asterinales. Therefore, we introduce Morenoinaceae to accommodate the Morenoina clade.

Fig. 5 Phylogram generated from maximum likelihood analysis (RAxML) of Asterinales based on LSU sequence data. Maximum likelihood bootstrap values equal to or greater than 70%, Bayesian posterior probabilities equal to or greater than 0.90 (MLBS/PP) are given at the nodes. Isolate numbers are noted after each species name. The tree is rooted to Venturia inaequalis (ATCC 60070) and Venturia populina (CBS 256.38). Newly sequence data generated in this study are in blue. Ex-types are indicated in bold. Hyphen (-) represents sup- port values less than 70% MLBS and 0.90 PP