Monoseptella
Monoseptella Wanas., Gafforov & K.D. Hyde, in Wanasinghe et al., Fungal Diversity: 10.1007/s13225-018-0395-7, [94] (2018).
Index Fungorum number: IF 554162; Facesoffungi number: FoF 04003, 1 morphological species (Species Fungorum 2022), 1 species with molecular data.
Saprobic on dead twigs and stems of rose species in terrestrial habitats. Sexual morph: Ascomata superficial, aggregated or clustered in groups beneath the host epidermis, often in large numbers, variable in shape, mostly globose to subglobose, ostiolate. Ostiole central, with or without a papilla. Peridium composed of 5–7 layers with brown to reddish-brown cells of textura globosa-angularis, cells towards the inside lighter and at the outside, darker. Hamathecium comprising numerous, filamentous, branched septate, pseudoparaphyses. Asci 8-spored, bitunicate, fissitunicate, cylindrical, with a pedicel, apically rounded with an ocular chamber. Ascospores overlapping uniseriate, broadly fusoid to cylindrical, incidentally slightly curved, smooth- and thin-walled, hyaline, uniseptate, with or without surrounded by a mucilaginous sheath. Asexual morph: Unknown (adapted from Wanasinghe et al. 2018).
Type species: Monoseptella rosae Wanas., Gafforov & K.D. Hyde
Notes: Monoseptella resembles Asymmetricospora, Byssosphaeria, Herpotrichia and Sarimanas in havinguniseptate, hyaline ascospores. However, they differ in ascomatal and ascal characteristics. Monoseptella is characterised by superficial, globose to subglobose, ostiolate ascomata, septate pseudoparaphyses, bitunicate, cylindrical asci and overlapping uni-seriate, broadly fusoid to cylindrical, hyaline, uniseptate ascospores surrounded by a mucilaginous sheath. Molecular markers available for Monoseptella are ITS, LSU, SSU and TEF-1.
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