SUMMARY
1. | Sporidiobolus Johnsonii, a new genus and species, is described to accommodate an heterobasidiomycetous fungus isolated from a pustule of Phragmidium rubi-idaei (DC.) Karst, in a leaf of Rubus idaeus L. | ||||
2. | A name for a previously undescribed species of Itersonilia Derx is proposed for a fungus isolated from a dead leaf of Acer macrophyllum Pursh. | ||||
3. | The life histories, physiology, and nuclear conditions of the above fungi are discussed. | ||||
4. | The validity of the inclusion of the genera Tilletiopsis and Itersonilia by Derx in the family Sporobolomycetaceae is questioned. |