Jahnulales » Aliquandostipitaceae » Ascagilis

Ascagilis thailandensis

Ascagilis thailandensis W. Dong, H. Zhang & K.D. Hyde

Index Fungorum number: IF557898

 

Saprobic on decaying wood submerged in freshwater. Sexual morph: Ascomata 280–320 μm high, 200–250 μm diam., black, scattered, superficial with base immersed in host tissue, conical, membranous, coriaceous, with short ostiolate papilla. Peridium 30–40 μm thick, composed of 4–5 layers of thin-walled, pale brown, large cells of textura angularis. Pseudoparaphyses 3.5 μm diam., numerous, cellular, hypha-like, hyaline, septate. Asci 125–185 × 24–30 μm (x̄ = 162 × 27.5 μm, n = 5), 8-spored, bitunicate, broadly or narrowly cylindrical, with an ocular chamber, short pedicellate. Ascospores 33–48.5 × 11–16 μm (x̄ = 41 × 13 μm, n = 30), biseriate or uniseriate above ascus center and overlapping biseriate near the center or base, brown, 1-septate, slightly constricted at the septum, irregularly fusiform, mostly curved, tapering at apical cell and slightly flattened or rounded at the basal cell, guttulate, thin-walled, smooth, with small, inconspicuous pads at one or both apices. Asexual morph: Undetermined. (Descriptions from Dong et al. 2020)

 

Specimen examined: THAILAND, Songkhla Province, on submerged wood in a stream, (Dong et al. 2020)

 

Fig. Ascagilis thailandensis (from holotype). a, b Ascomata on host tissue. c Vertical section of ascoma. d Structure of peridium. e–h Bitunicate asci. i Pseudoparaphyses. j–m Ascospores. n Germinated ascospore. o, p Colony on PDA (left-front, right-reverse). Scale bars: c, n = 50 μm, d–m = 20 μm (Photo grabbed from Dong et al. 2020)

 

References:

Dong W, Wang B, Hyde KD, et al (2020) Freshwater Dothideomycetes. Fungal Divers 105:319–575

 

 

Recent Genus

1
Neochlamydotubeufia
Neohelicomyces

Recent Species

Neohelicomyces submersus
Neohelicomyces hyalosporus
Neohelicomyces grandisporus