Zygosporiaceae J.F. Li, Phookamsak & K.D. Hyde, Mycosphere 8(10): 1860 (2017)

Index Fungorum number: IF 553846; MycoBank number: MB 553846Facesoffungi number: FoF 0376; 21 species.

Saprobic on various host plants, especially monocotyledons. Sexual morph: Undetermined. Asexual morph: Hyphomycetous. Colonies effuse, white to light pink. Mycelium immersed or partly superficial, composed of smooth, thin-walled, white or light pink hyphae. Setae or setiform conidiophores with a sphaerical apex. Conidiophores macronematous, mononematous, solitary or in small groups, pale brown, thin-walled, unbranched, septate, smooth, bearing swollen dark brown, thick-walled vesicles. Conidiogenous cells holoblastic, discrete, hyaline or light brown, smooth, sphaerical to ellipsoid, borne in groups of 2–4 on the vesicular cell. Conidia solitary, aseptate, hyaline or pale brown, globose or ellipsoid, thin- or thick-walled (adapted from Li et al. 2017b).

Type genusZygosporium Mont.

Notes Zygosporiaceae was introduced by Li et al. (2017b) to accommodate a single genus Zygosporium. It was based on phylogenetic support as a distinct lineage and separated from other taxa in Xylariales using analysis of LSU and ITS sequence data. Species of Zygosporiaceae are saprobes on plant litter, especially on monocotyledons such as Pandanaceae and palms (Li et al. 2017b).