Exobasidium parvifolii Hotson on Vaccinium parvifolium Sm. and V. ovalifolium Sm. in North America forms perennial galls on the stems from which numerous cylindrical, clavarioid excrescences emerge. Nannfeldt (1981) interpreted these structures as highly disorganized shoots, which, however, cannot be [considered distinct] witchesâ brooms ...
â- PiÄ tek, M., Lutz, M., & Welton, P. : (2012) Exobasidium darwinii, a new Hawaiian species infecting endemic Vaccinium reticulatum in Haleakala National ParkŠ