Pleosporales » Halojulellaceae

Omania

Omania Maharachch., Wanas. & Al-Sadi, in Maharachchikumbura et al., Fungal Diversity: 10.1007/s13225-020-00467-1, [24] (2021).

Index Fungorum number: IF 837553; Facesoffungi number: FoF 09482, 1 morphological species (Species Fungorum 2022), 1 species with molecular data.

Saprobic on decaying mangrove roots submerged in marine habitats. Sexual morph: Unknown. Asexual morph: Colonies on the PDA superficial to erumpent, dark brown to grey. Mycelium immersed and superficial. Conidiophores arising from basal cells, septate, branched, cylindrical, hyaline, forming conidia laterally and terminally; conidiophores frequently aggregated into brown stroma. Conidiogenous cells holoblastic, integrated, determinate, ampulliform to subcylindrical, smooth to finely verruculose. Conidia hyaline at immaturity, dark olivaceous-brown at maturity, smooth to verruculose, guttulate, globose to subglobose, thick-walled, mostly solitary, rarely in short chains (adapted from Maharachchikumbura et al. 2021).

Type species: Omania hydei Maharachch., Wanas. & Al-Sadi

Notes: Omania is characterised by dark brown to grey colonies, septate, branched, cylindrical, hyaline conidiophores, holoblastic, integrated, determinate, ampulliform to subcylindrical conidiogenous cells and dark olivaceous-brown at maturity, smooth to verruculose, guttulate, globose to subglobose conidia. Omania differs from Halojullela in having an asexual morph that is not arthrinium-like. Omania is morphologically and phylogenetically a distinct genus in Halojulellaceae. Molecular markers available for Omania include ITS, LSU, SSU, RPB2 and TEF-1 sequence data.

 

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