Pleosporales » Dictyosporiaceae

Pseudoconiothyrium

Pseudoconiothyrium Crous & R.K. Schumach., in Crous et al., Fungal Systematics and Evolution 3: 57–134 (2019).

Index Fungorum number: IF 829339; Facesoffungi number: FoF 08215, 1 morphological species (Species Fungorum 2022), 1 species with molecular data.

Saprobic on host. Sexual morph: Unknown. Asexual morph: Conidiomata eustromatic, pycnidial, aggregated, globose with central opening; wall of 6–10 layers of brown textura angularis. Conidiophores reduced to conidiogenous cells lining inner cavity, hyaline, smooth, doliiform to ampulliform, phialidic with periclinal thickening, and at times with percurrent proliferation. Conidia solitary, aseptate, subcylindrical to ellipsoid to subglobose, apex obtuse, base truncate to bluntly rounded, medium brown, verruculose (adapted from Crous et al. 2019).

Type species: Pseudoconiothyrium broussonetiae Crous & R.K. Schumach.

Notes: Pseudoconiothyrium is characterised by eustromatic, pycnidial, aggregated, globose conidiomata, doliiform to ampulliform conidiophores, and solitary, aseptate, subcylindrical to ellipsoid conidia. Pseudoconiothyrium morphologically resembles Coniothyrium but is phylogenetically distinct. Pseudoconiothyrium is a distinct genus in Dictyosporiaceae. Molecular markers available for Pseudoconiothyrium are ITS, LSU and TEF-1.

 

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