Asteridiella solani

Asteridiella solani is a species of fungus in the family Meliolaceae, first described by Daniel McAlpine in 1897, who gave the following description: On upper and under surfaces of leaves, leaf-stalks and branches; forming densely crowded, minute, black, generally orbicular, often confluent, easily detachable, brittle crusts, with surface of leaf beneath of a pale brown or pale reddish colour. Mycelium composed of an interosculating network of delicate, colourless, septate, luxuriantly branched hyphae, about 3 μ broad, and attached to matrix, gradually passing into the stouter coloured hyphae above it. Coloured hyphae dark brown, rigid, thick-walled, closely interwoven, septate, branched, 8-9½ μ broad, ultimate branchlets generally 1-septate, knobbed and paler in colour. Perithecia seated on crust in clusters, depressedly globose, black, rough with warty spines, 130-330 μ, the latter being the average full-grown size. Asci oblong to cylindrical, 4-spored usually, 38-64 X 13-26 μ (immat......read more on Wikipedia.