R. Ciferri [1-425, plus extras]

Cornell University, Plant Pathology Herbarium
Catalog #: Ciferri,M.Dom.0387
s.n.
Oidium tabaci Thüm.
Dominican Republic

University of Michigan Herbarium
Catalog #: 326593
R. Duvivier #s. n.
Oidium tabaci Thüm.
Haiti, Port-au-Prince, near.

University of Wyoming, Wilhelm G. Solheim Mycological Herbarium
Catalog #: RMS0024557
R. Duvivier #s.n.
Oidium tabaci Thüm.
Haiti, near Port-au-Prince

University of Illinois Herbarium
Catalog #: ILL00082265
R. Duvivier #s.n.
Oidium tabaci Thüm.
Haiti, near Port-au-Prince