Vargamyces
Vargamyces Tóth, Acta. Biol. Hung. 25: 403 (1980).
Index Fungorum number: IF 10375; Facesoffungi number: FoF 08157, 1 morphological species (Species Fungorum 2022), 1 species with molecular data.
Saprobic on submerged wood. Sexual morph: Unknown. Asexual morph: Description on OA. Mycelium mostly immersed, composed of septate, hyaline to pale brown, smooth hyphae. Conidiophores micronematous to semi-macronematous, solitary, erect, straight to flexuous, cylindrical, with up to 4 percurrent proliferations subhyaline to pale brown. Conidiogenous cells integrated, terminal, cylindrical to cupuliforme, hyaline to pale brown. Conidial secession rhexolytic. Conidia solitary, fusiform, 5–8-septate, truncate at the base, rounded apically brown, paler toward the ends, smooth-walled. Microconidia unicellular, blastic growing on undifferentiated hyphae, solitary, terminal, lateral, or intercalary, globose to obovoid, hyaline, smooth (adapted from Hernandez-Restrepo et al. 2017).
Type species: Vargamyces aquaticus (Dudka) Tóth
Notes: Vargamyces is characterised by hyaline to pale brown mycelium on OA, cylindrical to cupuliforme, hyaline to pale brown conidiogenous cells, rhexolytic conidial secession, and fusiform, 5–8-septate conidia and unicellular, blastic microconidia. Vargamyces aquaticus was previously described as C. aquaticum (Dudka 1966). Hernandez-Restrepo et al. (2017) reported that V. aquaticus and R. ontariense are conspecific and listed them as synonyms based on phylogenetic analyses. The authors also selected the illustration in the protologues (Dudka 1966) as the lectotype and designated an epitype (CBS H-22992) based on morphology and phylogenetic analyses. Vargamyces is a distinct and well-defined genus in Amniculicolaceae. Molecular markers available for Vargamyces are LSU, ITS and RPB2.
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