Alloscorias Haituk & Cheew., 2021

Haituk, Sukanya, Suwannarach, Nakarin, Hongsanan, Sinang, Senwanna, Chanokned & Cheewangkoon, Ratchadawan, 2021, New genus of epiphytic sooty mold: Alloscorias syngonii (Readerielliopsidaceae) from Thailand, Phytotaxa 507 (4), pp. 271-282 : 276

Alloscorias Haituk & Cheew. , gen. nov.

Index Fungorum number: IF558107

Etymology—Name reflects its morphological similarity to the genus Scorias

Holotype — SDBR-CMU355

Epiphytic on the surface of living leaves. Thallus very thin, superficial, pale brown to brown walls. Sexual morph: Ascomata gregarious to scattered, superficial, globose to subglobose, brown to dark brown, with indistinct ostiole. Setae abundant, corniform, brown, septate, constricted at septate, smooth-walled. Peridium composed of two sections, arranged in textura angularis, outer layer of brown to dark brown, thick-walled cells, inner layer of light brown, thinwalled cells. Asci 8-spored, bitunicate, obpyriform, rounded at the apex, sessile. Ascospores overlapping 2–3-seriate, hyaline, smooth-walled, fusoid, narrowly rounded at the ends, 3–4-septate, upper cells wider and shorter than lower cells, constricted at the septate, with a conspicuous mucilaginous sheath. Asexual morph: Mycelium pale brown to brown at the apex, septate, constricted at septa, rough, thick-walled. Coelomycetous . Conidiomata solitary, brown to dark brown, globose to subglobose. Pycnidial walls composed of pseudoparenchymatous cells of textura angularis, outer layer brown to dark brown, thick-walled cell, inner layer with hyaline cells, thin-walled cells. Conidiophores reduced to conidiogenous cells. Conidiogenous cells enteroblastic, phialidic, integrated, terminal, hyaline, smoothwalled. Conidia oblong to ellipsoid, hyaline, aseptate, guttulate, smooth-walled.

Type species— Alloscorias syngonii Haituk & Cheew.