Neoscolecobasidium
Neoscolecobasidium Crous, in Crous et al., Persoonia 37: 309 (2016).
Index Fungorum number: IF 819064; Facesoffungi number: FoF 06757, 3 morphological species (Species Fungorum 2022), 2 species with molecular data.
Saprobic on leaves. Sexual morph: Unknown. Asexual morph: Mycelium consisting of branched, septate, hyaline, smooth, hyphae, frequently forming hyphal coils. Conidiophores solitary, erect, subcylindrical, straight to flexuous, unbranched, hyaline, smooth, septate. Conidiogenous cells terminal, subcylindrical, hyaline, smooth, tapering to an acute truncate apex; with several truncate denticle-like loci; scars unthickened, nor darkened. Conidia solitary, fusoid-ellipsoid, apex obtuse, constricted at central septum, hyaline, smooth, guttulate, tapering from middle to truncate hilum. Older conidia appear somewhat pale brown and finely roughened. A separating cell exists between the conidiogenous cell and the conidium (rhexolytic conidiogenesis), and a marginal frill is visible at the conidium hilum and scar on the conidiogenous cell (adapted from Crous et al. 2016).
Type species: Neoscolecobasidium agapanthi Crous
Notes: Neoscolecobasidium is characterised by solitary, erect, subcylindrical, straight to flexuous conidiophores, terminal, subcylindrical, hyaline conidiogenous cells, fusoid-ellipsoid conidia tapering from middle to truncate hilum. Neoscolecobasidium resembles Scolecobasidium in general morphology but is phylogenetically distinct. Scolecobasidium belongs to Pleosporales genera incertae sedis while Neoscolecobasidium cluster in Microthyriales genera incertae sedis. The taxonomic placement of Scolecobasidium is still uncertain and more collections are needed to confirm the position of this genus. Molecular markers available for Neoscolecobasidium in GenBank are ITS and LSU.
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