Neohelicomyces
Neohelicomyces Z.L. Luo, Bhat & K.D. Hyde, in Luo et al., Cryptog. Mycol. 38(1): 39 (2017).
Index Fungorum number: IF 818820; Facesoffungi number: FoF 02643, 8 morphological species (Species Fungorum, 2022), 8 species with molecular data
Saprobic on submerged decaying wood. Sexual morph: Unknown. Asexual morph: Colonies on the substratum superficial, effuse, gregarious, white. Mycelium composed of partly immersed, partly superficial, hyaline to pale brown, septate, sparsely branched hyphae, with masses of crowded, glistening conidia. Conidiophores macronematous, mononematous, erect, septate, sparsely branched, pale brown, arising directly on substrate, glistening, light-coloured, smooth-walled, fertile below half, remaining sterile above the half. Conidiogenous cells monoblastic, holoblastic, integrated, with lateral minute denticles each with single conidium. Conidia helicoid, with conidial filament, tightly to loosely coiled, rounded at apical end, pale brown, multi-septate, smooth-walled, guttulate (adapted from Luo et al. 2018).
Type species: Neohelicomyces aquaticus Z.L. Luo, D.J. Bhat & K.D. Hyde
Notes: Luo et al. (2017) accommodated three freshwater species in Neohelicomyces. Lu et al. (2018) introduced the fourth freshwater species N. hyalosporus based on morphology namely longer conidiophores and hyaline conidia and phylogeny. Dong et al. (2020) added two freshwater Neohelicomyces species found from China and Thailand based on morphology and phylogenetic analyses. Neohelicomyces is unique in having pale colored conidiophores and hyaline conidia. Molecular markers available for Neohelicomyces includes ITS, LSU, SSU, TEF-1 and RPB2.
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