Barbatosphaeria – Facesoffungi number: FoF05073

Barbatosphaeria Réblová, Mycologia 99(5): 727 (2008)

Index Fungorum number: IF505954; 9 morphological species (Species Fungorum 2020), 8 species with sequence data.

Type species – Barbatosphaeria barbirostris (Dufour) Réblová

Notes – The genus was introduced by Réblová (2007) based on Barbatosphaeria barbirostris and defined as a well-supported monophyletic clade in Sordariomycetidae, genera incertae sedis (Réblová et al. 2015). Zhang et al. (2017) transferred the genus to the newly described Barbatosphaeriaceae based on a stable clade in phylogenetic and MCC trees. A key to species accepted in the genus was provided by Réblová et al. (2015). Ramichloridium– and sporothrix-like asexual morphs have been observed regularly in cultures of various species (Samuels & Candoussau 1996, Réblová 2007, Réblová et al. 2015).

Figure – Barbatosphaeria varioseptata (Material examined – CZECH REPUBLIC, Southern Moravia, distr. Břeclav, Milovice, Milovický les Nature Reserve, north slopes of Mt Špičák 293 m asl, on decaying wood and bark of a branch of Quercus sp., 18 November 2010, M. Réblová, PRM 924376, holotype). a Herbarium material with label. b Appearance of superficial black ascomata on host. c Structure of peridium. d Vertical section of ascoma. e Ostiole. f Paraphyses. g-j Unitunicate asci. k-o Ascospores. Scale bars: c, d = 100 μm, e = 50 μm, f-j = 20 μm, k-o = 5 μm.

Figure – Asexual morphs of Barbatosphaeria barbirostris, ramichloridium-like (a), sporothrix-like (b, c) (redrawn from Réblová 2007) a-c Conidiophores and conidia. Scale bars: a-c = 10 µm