Pleosporales » Anteagloniaceae » Anteaglonium

Anteaglonium parvulum

Anteaglonium parvulum (Schwein.) Mugambi & Huhndorf, Syst. Biodiv. 7(4): 460 (2009) Facesoffungi number: FoF 01931


Sexual morph: Ascomata 230–259 µm high × 209–268 µm diameter (x̄ = 247.5 × 239 µm), hysterothecial, superficial, semi-immersed or sunken at the base, oval to elongate, or subglobose, carbonaceous, brittle, straight or curved, black. Ostiole central, with longitudinal slit. Peridium 52–69 μm thick, relatively thick, strongly carbonaceous texture, composed of thick-walled dark angular or relatively compressed pseudoparenchymatous cells, inner layers composed of hyaline to brown cells of textura angularis. Hamathecium comprising 1– 2 μm thin, cylindrical to filiform, hyaline, branched, septate, anastomosing pseudoparaphyses. Asci 38.5–59 × 3.5–6 μm (x̄ = 49 × 5 µm, n = 20), 8-spored, bitunicate, fissitunicate, elongate cylindric- clavate, straight or slightly curved, sessile or with short pedicel, apically rounded, with a minute an ocular chamber. Ascospores 5–9 × 2–4 μm (x̄ = 6.5 × 3 μm, n = 20), 1-seriate, hyaline, ellipsoidal, 1-septate, constricted at the septa, upper cell wider and tapering towards the narrow ends, smooth- walled. Asexual morph: Coelomycetous. Conidiomata grouped to scattered, superficial, subglobose to globose, dark brown, surrounded by aerial mycelia. Conidiophores and conidiogenous cells not observed. Conidia 2.5–5 × 3–5 μm (x̄ = 3 × 4 μm, n = 20), 1-celled, globose to subglobose, aseptate, hyaline, guttulate, smooth-walled.


Culture characteristics: Ascospores germinating on MEA with 12 h and germ tubes produced from both ends. Colonies on MEA reaching 10 mm after 7 days at 28 °C, effuse, velvety to hairy, radially with entire edge, dark brown and sparse mycelium in the outer ring on the surface with light brown margin. Mycelium superficial and partially immersed, branched, septate, light brown, smooth-walled, asexual state formed within 60 days.


Habitat: on dead wood (Hyde et al. 2020).


Known distribution: USA, Louisiana and Michigan States (Mugambi & Huhndorf 2009), India (Hongsanan et al. 2020), Thailand, Chiang Rai Province (Jayasiri et al. 2016), Thailand, Chiang Mai Province (Hyde et al. 2020).


Material examined: Thailand, Chiang Mai Province, Muang District, on dead wood, 21 April 2011, S. Boonmee, DST02 (MFLU 11–0133, new geographical record); living culture (MFLUCC 11–0374 = BCC 52032).


GenBank Accession No: ITS: MN608543, LSU: MN577412, SSU: MN577423.