Eupenidiella
Eupenidiella Quaedvl., & Crous, in Quaedvlieg et al., Persoonia 33: 25 (2014).
Index Fungorum number: IF 807797; Facesoffungi number: FoF 07008, 1 morphological species (Species Fungorum 2022), 1 species with molecular data.
Pathogenic to human. Sexual morph: Unknown. Asexual morph: Mycelium consisting of branched, septate, smooth to faintly rough-walled, thin-walled, sub hyaline, pale olivaceous to medium brown hyphae. Conidiophores solitary, erect, macronematous, subcylindrical, straight to flexuous to once geniculate pale to medium olivaceous-brown or brown, thin-walled (up to about 1 µm), terminally penicillate, branched portion composed of true branchlets and/or a single set or several sets of ramoconidia, branchlets up to 50 µm long; seldom with a few additional micronematous conidiophores. Conidiogenous cells terminal and intercalary, unbranched, sub cylindrical, medium brown, smooth or almost so to finely verruculose, apex of conidiogenous cells frequently swollen with flat-tipped, non to slightly thickened, non to slightly darkened-refractive loci frequently appearing sub denticulate, intercalary conidiogenous cells also somewhat swollen at the conidiogenous portion just below the upper septum, which render the conidiophores subnodulose to nodulose, swellings round about the conidiophore axis or unilateral. Conidia ellipsoid-ovoid, sub cylindrical, pale to medium olivaceous brown or brown, finely verruculose, wall guttulate or not, occurring in branched chains. Ramoconidia 0–1(–3)-septate with 1–3 sub denticulate apical hila; secondary conidia 0(–1)-septate, ellipsoid, obovoid to irregular, hila non to slightly thickened, non to slightly darkened-refractive (adapted from Crous et al. 2007).
Type species: Eupenidiella venezuelensis (Crous & U. Braun) Quaedvl. & Crous
Notes: Eupenidiella is characterised by having smooth mycelium, long penicillate conidiophores with subdenticulate conidiogenous loci and small conidia. Eupenidiella resembles Penidiella, but differs in having dimorphic conidiophores, and conidiogenous loci that are subdenticulate, and slightly darkened-refractive. Phylogenetically, Eupenidiella is a distinct genus and is taxonomically placed in Teratosphaeriaceae. Molecular markers available for Eupenidiella include LSU, ITS, Actin, BTUB, Calmodulin and TEF-1.
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