A.L. de Jaczewski [1-350]

USDA United States National Fungus Collections
Catalog #: BPI 976110
Jaczewski s.n. 00 August 1895
Erysiphe communis var. umbelliferarum Link
Russia, Rylkowo, near Gjatsk, Smolensk Prov.

USDA United States National Fungus Collections
Catalog #: BPI 564221
Jaczewski s.n. 00 August 1895
Erysiphe polygoni DC.
USSR, Rylkowo, near Gjatsk, Smolensk Prov.

Wisconsin State Herbarium, Fungi
Catalog #: WIS-F-0069764
Jaczewski #s.n.
Erysiphe communis (Wallr.) Schltdl.