COMMENTS: Both Berkleasmium nigroapicale Bussaban, Lumyong, P. Lumyong, McKenzie & K.D. Hyde and B. monilicellulare (see below) have conidia with a black, opaque apex. However, the conidia of B. nigroapicale are smaller (24–27 × 12.5–15 m) with fewer cells. The conidia of B. monilicellulare are slightly smaller (33–45 × 20–27 m) than those of B. atroapicale and approximately three quarters of the conidia are black and opaque rather than the top one third in B. atroapicale. In addition, B. atroapicale is the only species of Berkleasmium that has its conidia borne on short, globose cells, all other species produce more or less cylindrical (sometimes swollen), often septate conidiophores (Moore, 1958, 1959; Ellis, 1971, 1976; Sharma, 1980; Matsushima, 1981, 1983, 1987).