R. Ciferri [1-425, plus extras]

Cornell University, Plant Pathology Herbarium
Catalog #: Ciferri,M.Dom.0240a
R. Ciferri s.n. 06 May 1931
Sphaerotheca humuli (DC.) Burrill
Dominican Republic, Puerto Plata, Cordillera Septentrional, road to Puerto Plata