Mytilinidiales » Mytilinidiaceae » Zoggium

Zoggium mayorii

Zoggium mayorii (H. Zogg) Lar.N. Vassiljeva [as 'mayori'], Mikol. Fitopatol. 35(1): 17 (2001).

Lophium mayorii H. Zogg [as 'mayori'], Ber. schweiz. bot. Ges. 62: 295 (1952).

            Index Fungorum number: IF 474215; Facesoffungi number: FoFxxx, Fig. 1


Saprobic on host. Sexual morph: Ascomata 300–375 μm diam., 200–275 μm high, superficial, solitary to gregarious, or partially grouped, uniloculate, globose to subglobose, elongate or ellipsoid, conchate or shield shaped, small to medium sized; apex cristate, opening by longitudinal slit; surface black, smooth, shining sometimes longitudinally striate.  Peridium 30–105 μm, thick, composed of dark-brown cells of textura globulosa. Hamathecium 1.5–2.0 μm, comprising numerous, unbranched, aseptate, hyaline, filiform cellular pseudoparaphyses. Asci 90−120 × 9.5−12.0 µm (x̄ = 105.3 × 10.5 µm, n = 20), 8-spored, bitunicate, fissitunicate, cylindrical-clavate, sessile or sometimes with a long pedicel, with a beak-shaped apex, ocular chamber not well-developed. Ascospores 65−75 × 1.0−1.9 µm (x̄ = 68.4 × 1.4 µm, n = 20), fasciculate, elongate cylindrical or narrowly oblong, filiform, tapering towards narrow and rounded ends, multi-septate, hyaline, smooth-walled. Asexual morph: Unknown.

Material examined: U.S.A., Washington, Whatcom, Sulphur Creek Lava flow, on dead stem of Larix decidua (Pinaceae), 24 May 1980, B. Ryan (WTU F007540).