SummaryA species ofPhysalosporafound on Citrus and other hosts in Cuba is described asPhysalospora fusca. P. fuscais distinguished from other known species of the genus in having brown ascospores.The perfect stage of the fungus which has usually been calledDiplodia natalensisin this country is apparently identical withPhysalospora rhodina(Berk.&Curt.) Cooke.Physalospora gossypinaas used in our earlier papers is apparently a synonym ofP. rhodina.What is apparently the pycnidial stage ofP. rhodinahas been received from various localities outside the United States.