Neooccultibambusa kaiyangensis

Neooccultibambusa kaiyangensis

X.D. Yu, S.N. Zhang & Jian K. Liu Diversity 13(11): 516 (2021)

Classification: Ascomycota-Pezizomycotina-Dothideomycetes-Pleosporomycetidae-Pleosporales-Occultibambusaceae-Neooccultibambusa

Host species: Trachycarpus fortunei

Holotype: HKAS 113021

Known distribution: China

IF Number: IF841010      Mycobank Number: 841010      FOF Number: N/A

Description

Saprobic on rachides or petioles of palms. Sexual morph: Ascomata are scattered to gregarious, immersed, visible as brown or dark area with erumpent black dots on host surface, in vertical section 200–360 μm high, 110–270 μm diam., coriaceous, uniloculate, ampulliform, or globose with an ostiolar neck beneath the host surface. Ostiole are central, periphysate. Peridium are 16.5–38.0 μm wide, comprising several layers of brown, thin-walled cells of textura intricate, and hyaline, compressed cells of textura angularis. Hamathecium are 1.0–1.8 μm wide, cellular pseudoparaphyses, anastomosing above asci, embedded in a gelatinous matrix. Asci are 70−108 × 7.5–11.0 μm (= 85.1 × 9.3 μm, n = 20), 8-spored, bitunicate, cylindrical to clavate, with short furcate pedicel, apically rounded, with an ocular chamber. Ascospores are 16.0–23.5 × 3.0–5.5 μm (= 20.1 × 4.5 μm, n = 50), overlapping biseriate, hyaline to pale brown, fusoid, 1–3-septate, constricted at the center septum, guttulate when young, smooth, surrounded by a gelatinous sheath. Asexual morph: Undetermined.

Culture conditions: Colonies on PDA and attaining a diameter about 13 mm after 21 days at 25 °C, circular, medium dense, dark olive green, reverse dark green.