Multiclavula coronilla
≡Clavaria coronilla Martin, Lilloa 5: 194 (1940).
Description : Basidiomata up to 15 × 3 mm, simple clubs, narrowly clavate to clavate, watery white to creamish, arising from minute mycelial patches intricately associated with unicellular green algae, cartilaginous, translucent when dry, becoming yellowish, often with a minute apical white dot. Tramal hyphae 3.5–6.5 μm diam., hyaline, clamped, thick-walled (wall to 0.6 μm thick), parallel. Hymenium thickening significantly. Basidia 25–30 × 6–8 μm, ellipsoidal at maturity, with a hyphal basal stalk, clamped, contents multiguttulate. Sterigmata 6–8, short, slender, weak. Basidiospores 5.5–7 × 2.5–3 μm, ellipsoidal, flattened to cylindrical, hyaline, smooth, thin-walled, contents 1–several-guttulate.
N: Gisborne (Urewera National Park near Lake Waikaremoana). On soil. Known also from North America (Petersen 1967; Esslinger & Egan 1995).
Cosmopolitan
Illustrations : Petersen (1988: 84, figs 76, 77).
Multiclavula coronilla is characterised by: the terricolous habit; white, clavate, basidiomata on soil associating with green algae; supernumerary sterigmata; and thick-walled tramal hyphae.
