Amphisphaeriales » Beltraniaceae » Beltraniella

Beltraniella brevis

Beltraniella brevis

C.G. Lin, Jian K. Liu & K.D. Hyde, Asian Journal of Mycology 3 (1): 235 (2020)

 

Classification: Ascomycota-Pezizomycotina-Sordariomycetes-Xylariales-Beltraniaceae- Beltraniella

 

Host species: Trachycarpus fortunei (Xiong et al. 2025)

 

Known distribution: China (Hyde et al. 2020b; Xiong et al. 2025).

 

IF Number: IF556729      Mycobank Number: 556729     FOF Number: FoF 06219

 

Description

Saprobic on dead segment of Trachycarpus fortunei. Asexual morph: Hyphomycetous. Colonies on plant substrate effuse, straight, brown to black. Mycelium mostly immersed in the substratum. Setae 100–282 × 4–7 μm (x̅ = 192 × 5.5 μm, n = 10), numerous, erect, arising from radially lobed basal cells, straight or flexuous, unbranched, single or in small groups, thick-walled, verrucose, dark brown, paler at the apex, tapering to a pointed apex. Conidiophores macronematous, short, simple or branched, septate, sometimes reduced to conidiogenous cells, smooth-walled, subhyaline to pale brown, thin-walled, arising from basal cells of setae. Conidiogenous cells 5–12 × 4–7 μm (x̅ = 9.2 × 5.6 μm, n = 20), polyblastic, integrated, determinate, terminal, ampulliform or subcylindrical, hyaline to subhyaline, smooth. Separating cells 10–17 × 3.7–5 μm (x̅ = 14.5 × 4 μm, n = 25), fusiform, tapering to a pointed apex, thin-walled, smooth, hyaline to subhyaline, 1-denticulate at each end. Conidia 19–25 × 5.5–7 μm (x̅ = 22 × 6.4 μm, n = 25), arise directly from conidiogenous cells or from separating cells, aggregated, acrogenous, simple, dry, straight, smooth, thin-walled, turbinate to pyriform, rostrate to pointed at proximal end, truncate at distal end, hyaline with a hyaline supraequatorial transverse band. Sexual morph: Not observed.

 

Culture conditions: Colonies on PDA after 2 weeks reaching 9 cm diam. at 25°C, dense, cream from above, spongy, velutinous, with filiform edge, grey from reverse., septate.

Beltraniella brevis (MHZU 24-0488, new host record). a, b Conidiophores on host surface. c, d Setae. e, f Conidiogenous cells. g–j Conidia. k, l Conidia with separating cells. m The front of culture on PDA at 25℃ and the reverse of culture on PDA at 25℃. Scale bars: c, d = 30 µm; e–l = 10 µm.

 

Reference

Hyde KD, de Silva NI, Jeewon R, Bhat DJ, Phookamsak R, Doilom M et al (2020b) AJOM new records and collections of fungi: 1–100. Asian J Mycol 3(1):22–294. https://doi.org/10.5943/ajom/3/1/3.

Xiong, Y. R., Lu, L., Mapook, A., Maharachchikumbura, S. S. N., McKenzie, E. H. C., Kevin, D. H., Manawasinghe, I. S. (2025) Fungal Safari on Palm Trees: New Discoveries from East Asia and 1990-2025 Years of Global Records [Manuscript preparation]. Fungal Diversity.

 

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