Nemania Gray, Nat. Arr. Brit. Pl. (London) 1: 516 (1821)

Index Fungorum number: IF 3437; MycoBank number: MB 3437Facesoffungi number: FoF 03055; 53 morphological species (Species Fungorum 2020), 14 species with sequence data.

Type species Nemania serpens (Pers.) Gray

Notes Nemania is a species rich and well-established genus in Xylariaceae (Daranagama et al. 2018, Wendt et al. 2018) characterized by stromata not associated with bark rupturing structures, lack KOH-extractable pigments and finely papillate ostioles. Maharachchikumbura et al. (2016b) and Réblová et al. (2016b) proposed the use of Nemania over Geniculosporium following Stadler et al. (2013). Nemania bipapillata is illustrated in this paper (Fig. 1).

Figure 1 Nemania bipapillata (Material examined – INDIA, Andaman and Nicobar Islands, South Andaman, Mount Harriet, Gun Point (11˚72’23”N 92˚73’80”E), decaying twig, on 7 December, 2017, collected by M. Niranjan & V.V.Sarma. Herbarium accession AMH-10074, Ajrekar Mycological Herbarium, Agarkar Research Institute (ARI), Pune, India; living culture PUFNI 17612. INDIA, South Andaman, Jirkatang (11˚45’5” N 92˚39’7”E), terrestrial forest, on an unidentified decaying twig 28 March 2017, collected by M. Niranjan & V.V. Sarma (PUFNI T128F1) Fungal Biotechnology Lab, Department of Biotechnology, Pondicherry University in-house herbarium code). a, b Stromata on host. c Stromata vertical section. d, e Culture on malt extract agar plates (d-from above, e-reverse). f Paraphyses. g-j Asci. k J+ apical ring. l-n Ascospores. Scale bars: i = 50 μm, f, h = 20 μm, g, j-n = 10 μm.