Chaetomium atrobrunneum L. M. Ames 1950

Mangifera indica; Vitis vinifera.

Egypt; India (Gujarat, Uttar Pradesh).

Colonies. With a daily growth rate of 3-4 mm, at first white, without coloured exudates, becoming dark brown due to the ascomata which are mature within 8 days. Ascomata. Maturing within 10 days, olivaceous or pale green in reflected light, superficial, ostiolate, 70-150 μm, with a thin wall of dark, angular, 5-10 μm cells; ascomatal hairs arising around the ostiolar pore and lateral, long, tapering, occasionally branched, 3-4 μm broad at base, smooth or covered with some exudates, brown, in distinctly septate. Asci. Clavate, stalked, 8-spored, evanescent. Ascospores. Fusiform or elongate pyriform, grey-brown when mature, 9-11 × 4.5-6 μm, with a distinct, often slightly subapical germ pore. Paraphyses. Not observed.