Fungalpedia – Note 3026, Xenochalara

 

Xenochalara. M.J. Wingf. & Crous.

Citation when using this data: Wenping Wu et al. 2023 – Fungalpedia.

Index Fungorum, Facesoffungi, MycoBank, GenBank, 

Classification: Dermateaceae, Helotiales, Leotiomycetidae, Leotiomycetes, Pezizomycotina, Ascomycota, Fungi

Mycelium consisting of branched, septata hyphae; hyphae hyaline and smooth, becoming brown and rough, occurring singly or in strands. Chlamydospores absent. Anamorph: Conidiophores micronematous, arising from aerial mycelium or submerged hyphae, erect, simple, frequently reduced to conidiogenous cells, or 1-septate, subcylindrical, straight to slightly curved, light brown, smooth. Conidiogenous cells phialidic, terminal, subcylindrical or lageniform, smooth, pale to light brown; venter conical to ellipsoid; cellarette narrowly obconical to subcylindrical. Conidia hyaline, smooth, aseptate, occurring in false chains; short clavate, apex rounded, base truncate (Adapted from Coetsee 2000). Teleomorph: Unknown.

            Ecology/substrate/host: Saprobe on decaying needle of Juniperus communis.

Geographical distribution: Netherlands.

Description and illustration: Coetsee et al. (2000).

Notes: Xenochalara morphologically resembles Chalara s. str., but differs in producing conidia through apical wall building, and being tolerant of cycloheximide (Coetsee et al. 2000). Phylogenetically these two genera are also distinct. The genus remained to be monotypic.

Type species: Xenochalara juniperi M.J. Wingf. & Crous.

Other accepted species: Species Fungorum – search Xenochalara.

 

References

Coetsee C, Wingfield MJ, Crous PW, Wingfield BD 2000 – Xenochalara, a new genus of dematiaceous hyphomycetes for Chalara-like fungi with apical wall building conidial development. S Afr J Bot 66: 99–103.

 

Entry by

Wenping Wu, R&D Center, Novozymes China, No. 14 Xin Xi Lu, Shangdi Zone, Haidian District, Beijing 100085, P.R. China

 

Published online 08 September 2026