Dothideomycetes » Dothideomycetes, genera incertae sedis » Lignosphaeria

Lignosphaeria thailandica

Lignosphaeria thailandica Boonmee, Thambug. & K.D. Hyde, in Thambugala et al., Fungal Diversity: 10.1007/s13225-015-0348-3, [62] (2015)                                                                  Fig. 59

Index Fungorum number: IF551282; Facesoffungi number: FoF01089

Saprobic on dead wood. Sexual morph: Ascomata 385–470 μm high × 300–325 μm diam. (x̅ = 355.2 × 301.2 μm, n = 3), scattered to gregarious, superficial or semi-immersed to densely erumpent, carbonaceous, dark brown to black, globose to subglobose. Ostiole slit-like, central, papillate, periphysate. Peridium 16–24 μm wide, broad at the apex, comprising several layers of dark brown to black cells of textura angularis, fusing at the outside with the host tissues. Hamathecium 1–3 μm wide, long, hyaline, anastomosing and branched, cellular pseudoparaphyses, embedded in gel matrix between and above the asci. Asci 53–81 × 6–8 μm (x̅ = 72.9 × 7.2 μm, n = 10), 8-spored, bitunicate, cylindrical to clavate, long pedicellate, apically rounded, with a minute ocular chamber. Ascospores 15–18 × 3–5 μm (x̅ = 16.7 × 3.3 μm, n = 10), uni to bi-seriate, hyaline, cylindrical to fusiform, with narrowly rounded ends, wide at the second cell from the apex, 3-septate, constricted at the septa, cell above central septum widest, small guttulate, smooth-walled, lacking a mucilaginous sheath. Asexual morph: Undetermined.

Material examined THAILAND, Chiang Mai Province, Muang, Doi Su Thep, Huai Kok Ma, on dead wood, 21 April 2011, S. Boonmee, DST-04 (MFLU 110135, holotype)

Economic Significance – None is reported.