Haploanthostomella elaeidis

Haploanthostomella elaeidis

Konta & K.D. Hyde (2021)

Classification:Ascomycota-Pezizomycotina-Sordariomycetes-Xylariomycetidae-Xylariales-Xylariales incertae sedis-Haploanthostomella

Host species: Elaeis guineensis (Konta et al. 2021)

Holotype: MFLU 20-0522 (Konta et al. 2021)

Known distribution: Surat Thani, Thailand

IF Number: IF557877     Mycobank Number: 557877     FOF Number: FoF09174

Description

Saprobic on dead leaves and rachis of Elaeis guineensis. Sexual morph: Ascomata 160–280 × 130–350 μm (x̄ = 220 × 240 μm, n = 20), immersed in the host epidermis, beneath a clypeus, visible as slightly raised blackened areas, dark brown to black, coriaceous, solitary or aggregated into clusters, scattered, with an ostiolar canal. Peridial wall 13–45 μm wide, thick, comprising several layers of cells, outwardly comprising dark brown cells of textura irregularis and inwardly comprising hyaline cells of textura prismatica, 7–20 μm wide. Paraphyses 1.5–4.5 μm wide, septate, hyphae-like, hyaline. Asci 50–90 × 10–15 μm (x̄ = 70 × 12 μm, n = 40), 8-spored, unitunicate, clavate to cylindric, short pedicellate, with J- apical ring. Ascospores 10–18 × 5–8 μm (x̄ = 14 × 6 μm, n = 100), uni–biseriate into the asci, unicellular, obovoid, fusoid, hyaline to light brown when immature and brown to dark brown when mature, mostly one, rarely two-guttulate, cell wall verrucose, with a mucilaginous cap at the apex. Germslit 3–6 μm length (x̄ = 5 μm, n = 50), straight, less than spore-length. Asexual morph: Not observed.

Culture conditions: Not available.