Constantinescu & Negrean, Herb. Mycol. Roman.O. Constantinescu ; G. Negrean [1851-3000]
USDA United States National Fungus Collections
Negrean G. s.n. 29 May 1927
Erysiphe buhrii subsp. setacea
Romania, Tulcea District, Delta Dunarii, Padurea Letea, Hasmacul Mare
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