Glonium stellatum

Glonium stellatum Muhl. ex Fr., Syst. mycol. (Lundae) 2(2): 595 (1823).

            Index Fungorum number: IF 146781; Facesoffungi number: FoF 06171, Fig. 1

Description:

Saprobic on bark. Sexual morph: Ascomata 150–250 μm diam., 195–220 μm high, hysterothecial, carbonaceous, black, scattered, contiguous, semi-immersed to superficial, subiculum or without, with a longitudinal slit at the median, quadrilateral, not branching to dichotomously branching. Exciple 50–90 μm comprising textura angularis, with an outer layer composed of black to dark reddish, thick-walled cells and inner layer of hyaline, thin-walled cells. Hamathecium 1.3–2.0 μm comprising hyaline, filiform, hypha-like, dense, septate pseudoparaphyses, embedded in a gelatinous matrix. Asci 105−115 × 10−12 µm (x̄ = 111.8 × 11.7 µm, n = 10), 8-spored, bitunicate, fissitunicate, subcylindrical to cylindro-clavate, apically rounded, with an ocular chamber, with a short furcate pedicel. Ascospores 20−27 × 5.2−5.4 µm (x̄ = 25.3 × 5.3 µm, n = 10), overlapping 1–2-seriate, hyaline, 1-septate, constricted at the transverse septa, upper cell wider than the lower cell, with a gelatinous sheath, smooth-walled. Asexual morph: Unknown.

Material examined: USA, New York, Tompkins, Ithaca, Cayuga Lake Basin, on Oak wood (Fagaceae), 16 January 1887, Morgan Andrew (CUP-A-015484).