A.L. de Jaczewski [1-350]
USDA United States National Fungus Collections
Jaczewski s.n. 00 August 1895
Erysiphe communis var. umbelliferarum Link
Russia, Rylkowo, near Gjatsk, Smolensk Prov.
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USDA United States National Fungus Collections
Jaczewski s.n. 00 August 1895
Erysiphe polygoni DC.
USSR, Rylkowo, near Gjatsk, Smolensk Prov.
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Wisconsin State Herbarium, Fungi
Jaczewski #s.n.
Erysiphe communis (Wallr.) Schltdl.
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