Penidiellomyces Crous, Attili-Angelis, A.P.M. Duarte, Pagnocca & J.Z. Groenew., in Duarte et al., Persoonia 38: 85 (2017).
Index Fungorum number: IF 500884; Facesoffungi number: FoF 05299, 2 morphological species (Species Fungorum 2022), 2 species with molecular data
Saprobic on host. Sexual morph: Unknown. Asexual morph: Hyphomycetous. Mycelium consisting of branched, septate, smooth, pale brown hyphae. Conidiophores solitary, arising from superficial mycelium, erect, brown, smooth, septate, straight to irregularly geniculate-sinuous. Conidiogenous cells terminal, subcylindrical, unbranched, medium brown, smooth, tapering to a flattened or rounded apical region, scars unthickened, aggregated, somewhat darkened, not refractive. Ramoconidia 0–1-septate, medium brown, smooth, ellipsoidal to obclavate, obovoid or subcylindrical, with 1–3-apical hila. Intermediate and terminal conidia subcylindrical to ellipsoid, 0–1-septate, brown, in chains of up to 6; hila truncate, unthickened, somewhat darkened (adapted from Duarte et al. 2017).
Type species: Penidiellomyces aggregatus (Crous) Crous & A.P.M. Duarte
Notes: Penidiellomyces resembles Penidiella in having solitary conidiophores with an apical apparatus that appears penicillate, producing branched chains of conidia. Penidiellomyces is unique in producing a terminal conidiogenous cell with a well-developed apical rachis producing ramoconidia. Penidiellomyces is a distinct and well-defined genus in Teratosphaeriaceae. Molecular markers available for Penidiellomyces are ITS and LSU.
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