R. Ciferri [1-425, plus extras]

Purdue University, Kriebel Herbarium
Catalog #: PUL00027253
R Ciferri s.n. 10 December 1929
Oidium verbenae M.B. Schwarz
Republica Dominicana, Valle del Cibao, Espaillat, Estacion Nacional Agronmica

University of Michigan Herbarium
Catalog #: 326597
R. Ciferri #s. n. 22 September 1931
Oidium verbenae M.B. Schwarz
Dominican Republic, Santiago, Hato del Yaque; Santiago, Valle del Cibao, in fields.