Constantinescu & Negrean, Herb. Mycol. Roman.
O. Constantinescu ; G. Negrean [1851-3000]

USDA United States National Fungus Collections
Catalog #: BPI 563777
Negrean G. s.n. 05 August 1979
Erysiphe sordida L. Junell
Romania, Mures District, Sovata-Bai