Yunnanomyces phoenicis

Yunnanomyces phoenicis

S.N. Zhang & J.K. Liu Asian Journal of Mycology 2(1): 217 (2019)

Classification: Ascomycota-Pezizomycotina-Dothideomycetes-Pleosporomycetidae-Venturiales-Sympoventuriaceae-Yunnanomyces

Host species: Phoenix paludosa

Holotype: MFLU 19-0811

Known distribution: Chanthaburi and Ranong Province, Thailand

IF Number: IF556745      Mycobank Number: 556745      FOF Number: FoF06149

Description

Saprobic on rachides and leaves of palms. Sexual morph Undetermined. Asexual morph

Hyphomycetous. Colonies scattered, granular, black, glistening, punctiform distributed on the substrate. Mycelium mostly immersed in the substrate, composed of branched, septate, subhyaline to pale brown, smooth hyphae. Conidiophores semi-macronematous, reduced to conidiogenous cells, subhyaline to pale brown, smooth, thin-walled. Conidiogenous cells 0.7–1.2 μm, integrated, determinate, holoblastic, monoblastic, terminal, cylindrical, subhyaline to pale brown. Conidia (14–)18–34 × (8.5–)12−22 (x̅ = 24.6 × 17.7 μm, n = 30), acrogenous, solitary, globose to broadly ellipsoidal, muriform, brown and hyaline immature, thick-walled. The number of cells per conidium varies from 10–30, apical row with 1−3 cells.

Culture conditions: colonies on MEA reach a diam. of 20mm after three weeks at 25–28˚C.