Ceratostomella pyrenaica Reblova & J. Fourn.

Ceratostomella pyrenaica Réblová & J. Fourn., Mycologia 98: 78. 2006. Description. See Réblová (2006). Specimens examined. Czech Republic • South Moravian Region, Hodonín district, Mikulčice, Skařiny Nature Reserve; on decaying wood of a trunk of Acer campestre; 24 Oct 2004; M. Réblová, M. R. 2912 (paratype PRA -21823, CBS 117116); • Ibid.; Břeclav district, Valtice, Rendez-vous National Nature Monument; on decaying wood of a branch of Quercus sp.; 20 Nov. 2010; M. Réblová M. R. 3566 (PRA -21824, CBS 129343); • Ibid.; Břeclav district, Milovice, Křivé jezero Nature Reserve, road near Panenský mlýn; on decaying wood of a trunk of Quercus sp.; 17 Nov 2010; M. Réblová M. R. 3584 (PRA -21825). Habitat and geographical distribution. Saprobe on decaying deciduous wood of Acer campestre, Alnus glutinosa, Quercus sp. and other unidentified hosts, and on decaying basidioma of Trametes gibbosa, known from the Czech Republic, Belgium and France (Réblová 2006; MyCoPortal; this study). According to GlobalFungi, identical sequences were found in 50 samples collected in temperate and subtropical regions. These samples mainly originated from air, soil, but also shoots, roots and deadwood. Ceratostomella pyrenaica is commonly found in croplands and forests, also in grasslands, woodlands and anthropogenic habitats in Croatia, Czech Republic, Italy and the USA (Hawaii, Michigan, and North Carolina). Notes. Ceratostomella pyrenaica is well distinguished from other species by its ellipsoidal to oblong ascospores, which are slightly curved, apiculate at both ends and flattened on one side, pale brown, measuring 7–9 × 3–4 μm.