Oxydothis phoenicis

Oxydothis phoenicis

S.N. Zhang, K.D. Hyde & J.K. Liu Mycosphere 11(1): 770 (2020)

Classification: Ascomycota-Pezizomycotina-Sordariomycetes-Xylariomycetidae-Amphisphaeriales-Oxydothidaceae-Oxydothis

Host species: Phoenix paludosa

Holotype: MFLU 18-1074

Known distribution: Thailand

IF Number: IF555516      Mycobank Number: 555516      FOF Number: FoF05092

Description

Saprobic on rachis of Phoenix paludosa. Sexual morph: Ascomata 230–600 μm diam., solitary or clustered in groups, forming under slightly raised, blackened, ellipsoidal regions on the host surface. Peridium 20–25 μm wide, composed of 2–3 layers of pale brown to hyaline cells with textura prismatica. Paraphyses seems to dissolve during maturation. Asci 142–159 μm × 14–21μm (x̅ = 148.9 × 17 μm, n = 20), 8-spored, cylindrical, mostly straight, pedicellate, unitunicate, with a wedge-shaped, amyloid, subapical apparatus, 3.5–5 μm high, 3.5–4.5μm diam. Ascospores 60–78 μm× 6–7.5 μm (x̅ = 72 × 6.7 μm, n = 30), fusiform, hyaline, obliquely 1–2-seriate, tapering gradually from a constricted central or seldom upper central septum to short, pointed processes. Asexual morph: Undetermined.

Culture conditions: colonies on MEA reach a diam. of 10mm after three weeks at 25–28˚C.