On the taxonomy of Monilia roreri, an important pathogen of Theobroma cacao in South America

Monilia roreri Cif., the causal agent of an important pod rot of cocoa in South America, is redescribed and illustrated. The presence of dolipore septa in the vegetative mycelium indicating basidiomycetous affinities and the development of the conidia in basipetal chains necessitate the transfer of the fungus to another genus. The new genus Moniliophthora is proposed. Conidium ontogeny shows similarities with the genera Basipetospora and the anamorph of Blumeria (=Erysiphe).