Diatrype lijiangensis Thiyagaraja & Wanas., in Thiyagaraja, Senanayake, Wanasinghe, Karunarathna, Worthy & To-Anun, Asian Journal of Mycology 2(1): 202 (2019)

Index Fungorum Number: IF 556377, Facesoffungi number: FoF 06032

Etymology – The specific epithet “lijiangensis” refers to the name of the place, from which the type specimen of the species was collected.

Holotype – MFLU 19-0717

Saprobic on decaying woody bark. Sexual morph: Ascostromata 1 mm diam., black, superficial, solitary to gregarious, subglobose or ellipsoidal, carbonaceous. Ascomata 170–460 × 200–300 μm (x̅ = 300 × 250 µm, n = 10), perithecial, black, subglobose to ovoid, clustered, immersed in ascostroma, glabrous, 2–5 loculate, ostiolate. Ostiole papillate or apapillate, central, ostiolar canal filled with periphyses. Peridium 15–25 μm wide, composed of two layers, outer layer comprising several layers of thick-walled, dark brown to black cells of textura angularis, inner layer comprising 3–5 layers of thin-walled, hyaline cells of textura angularis. Hamathecium 140–165 μm wide, hyaline. Paraphyses 2–4 μm wide, arising from base of perithecia, composed of long, narrow, unbranched, septate, guttulate, narrowing and tapering towards the apex, with apex blunt. Asci 50–90 × 6–9 μm (x̅ = 65 × 8 μm, n = 20), 8-spored, unitunicate, thin-walled, clavate to cylindric clavate, long pedicillate, apically truncate. Ascospores 6–8 × 1–2 μm (x̅ = 7 × 1.5 μm, n = 30), overlapping bi-seriate, allantoid, aseptate, hyaline to pale-brown, with one to few small guttules, slightly to moderately curved and smooth-walled. Asexual morph: Undetermined.

Material examined – China, Yunnan Province, Lijiang, on dead wood of unidentified host, N 27o 00′ 30.8”, E 100o 11′ 26.1”, 3234m, 7 September 2018, V. Thiyagaraja (MFLU 19-0717, holotype).

Addition GenBank number – LSU: MK810546

Fig. Diatrype lijiangensis (MFLU 19-0717, holotype). a-c Stromata on substrate. d, e Crosssection of stroma. f, g Vertical section through stroma showing ostioles and perithecia. h Peridium. i, j Ostiolar canals. k Paraphyses. l–r Asci. r–u Ascospores. Scale bars: b–e = 200 µm, f, g = 100 µm, h = 30 µm, k–r = 20 µm, s–v = 5 µm.