Acremoniisimulans cocois

Acremoniisimulans cocois

Konta & K.D. Hyde (2023)

Classification:Ascomycota-Pezizomycotina-Sordariomycetes-Hypocreomycetidae-Trichosphaeriales-Trichosphaeriaceae-Acremoniisimulans

Host species: Cocos nucifera (Konta et al. 2023)

Holotype: MFLU 15-2350 (Konta et al. 2023)

Known distribution: Prachuap Khiri Khan, Thailand

IF Number: IF559681   Mycobank Number: 559681   FOF Number: FoF10827

Description

Saprobic on the dead petiole of Cocos nucifera. Sexual morph: Ascomata 170–230 × 110–200 μm (x̄ = 200 × 140 μm, n = 10), solitary, immersed to semi-immersed, oval to globose, or irregular, with central raised, dark, papillae, ostiole with periphyses. Peridium 10–25 μm (x̄ = 20 μm, n = 20) wide, outer cells merging with the host epidermal cells, composed of dark brown to black cells of textura angularis. Paraphyses 2–5 μm (x̄ = 3.2 μm, n = 50) wide, hyaline, branched, septate, longer than asci. Asci 30–65 × 6–13 μm (x̄ = 44 × 9 μm, n = 50), 4–8-spored, unitunicate, oblong to clavate, pedicellate, apex rounded, a J- apical ring. Ascospores 9–14 × 3–6 μm (x̄ = 11.4 × 4.3 μm, n = 100), biseriate, oblong to broadly oblong, straight or curved, rough, or sometimes conical at both ends, hyaline, 1-celled, guttules. Asexual morph: Undetermined.

Culture conditions: Colony on MEA, colonies from above; white, medium dense, flat, smooth surface, entire edge, fluffy to velvety with smooth aspects, cream to white at the margin, white in the center. Colonies from below; white at the margin, white to cream in the center.