Gilletiella chusqueae
Gilletiella chusqueae (Pat.) Sacc. & P. Syd., Syll. fung. (Abellini) 14(2): 691 (1899) Fig. 1
≡ Heterochlamys chusqueae Pat., in Patouillard & Lagerheim 1895
Index Fungorum number: IF 223231; Facesoffungi number: FoF 06244
Foliicolous in undergrowth of Chusquea serrulata. Thallus crustose, thick, ecorticate. Sexual morph: Ascomata 0.1–0.2 mm diam., solitary or scattered, concentrically arranged, covered by the algal layer, lenticular to conical, rounded or outwardly elongate, dark brown to black, top rounded, with dark brown, conical involucrellum below the algal layer and dark brown, membranous involucrum (peridium) surrounding the subglobose nucleus, without apparent ostiole. Peridium 32–38 μm thin, single layered composed of brown, septate hyphae relatively conglutinated into textura epidermoidea to intricata. Hamathecium gelatinous, lacking pseudoparaphyses. Asci 52–54 μm × 11.4–11.5 μm (x̅ = 53.2 × 11.5 μm, n = 10), 8-spored, bitunicate, fissitunicate, obclavate, without a distinct ocular chamber. Ascospores 14.8–15.0 μm × 4.7–4.9 μm (x̅ = 14.9 × 4.9 μm, n = 10), 2–3-seriate irregularly arranged in asci, fusiform, 1-septate to submuriform, ends rounded, without endospore, without perispore, pale grayish, smooth-walled. Asexual morph: Undertermined.
Material examined – ECUADOR, Tungurahua, on matrix of Chusquea serrulata (Poaceae), 20 December 1937, H. Sydow (S-F46336).
Economic significance – None is reported.
Figure 1 – Gilletiella chusqueae (S-F46336). a Details of herbarium material. b, c Habit and appearance of ectostromata on host surface. d Squash mount of ascoma. e Peridium. f–h Asci. i–l Ascospores. Scale bars: b = 2 mm, c = 500 µm, d = 200 µm, e = 30 µm, f–h = 20 µm, i–l = 10 µm.
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