Plenodomus salviae Thambugala,Camporesi, Ariyawansa & K.D. Hyde, sp. nov.

Index Fungorum number: IF551468, Facesoffungi number: FoF 01161.

Etymology: The specific epithetsalviae is based on the host genus from which the fungus was isolated.

Holotype: MFLU15–0515

Sarobic on stems of Salvia glutinosaL. in terrestrial habitats.Sexual morph: Ascomata 130–250 μm high × 150–280 μm diam. ( = 172 × 233 μm, n = 5), solitary, scattered or in small groups, semi-immersed to immersed, subglobose to depressed globose, broadly or narrowly conical, black, coriaceous, ostiolate. Ostiole apex with a welldeveloped, dark brown to black, conical,papilla, ostiolar canal filled with periphyses. Peridium 30–68 μm ( = 50.8 μm, n= 10), composed of two  scleroplectenchymatous strata, outer stratum composed of small, thick-walled cells of textura angularis, surface heavily pigmented, inner stratum composed of subhyaline or light brown cells of textura angularis, cells near the base comparatively larger. Hamathecium of 1.5–3 μm (x̅ = 2.5 μm, n = 10) wide, long, septate, cellular pseudoparaphyses, branching and anastomosing, embedded in a gelatinous matrix. Asci57–88 × 8.6–11.4 μm ( = 72.9 × 10.2 μm, n = 10), 8-spored, bitunicate, fissitunicate, cylindrical, with short bulbous pedicel, rounded at the apex, with a distinct ocular chamber. Ascospores30–48 × 3.1–4.3 μm ( = 40.6 × 3.8 μm, n = 15), uni- or bi-seriate, partially overlapping, yellowish brown, cylindric-fusiform, 5-septate, not or slightly constricted at each septum, guttulate, lacking a mucilaginous sheath. Asexual morph: undetermined

Material examined:ITALY,Province of Forlì-Cesena

[FC], Campigna – Santa Sofia, on Salvia glutinosa (Lamiaceae), 4 October 2012,E. Camporesi IT 773 (MFLU15–0515, holotype);ibid., (GZAAS, isotype); ex-type living culture, MFLUCC 13–0219, CFTCC.

 Fig.Plenodomus salviae(holotype) a, b. Appearance of ascomata on host specimen.c.Section through ascomad. Ostiole. e. Peridium. f. Pseudoparaphyses. g, h. Asci. i–l. Ascospores. Scale bars: c = 50 μm, d, e = 25 μm, f = 10 μm, g, h = 30 μm, i–l = 20 μm

Notes: Plenodomusguttulatus andP.salviae are introduced based on morphological differences coupled with phylogeny. Plenodomus  guttulatus andP. salviae are typical of Plenodomus in having a scleroplectenchymatous peridium, and cylindric-fusiform yellowish brown, transversely septate ascospores. In the phylogenetic analysis, P.guttulatus  forms a distinct clade sister to P. wasabiae and P. hendersoniae, while P. salviae forms a robust clade sister to Plenodomus sp. (PHY 30) with relatively high bootstrap support (71% and 96%).