W. A. Tranzschel and J. Serebrianikow

USDA United States National Fungus Collections
Catalog #: BPI 1036741
s.n.
Podosphaera oxyacanthae (DC.) de Bary
Russia

USDA United States National Fungus Collections
Catalog #: BPI 603473
Tranzschel W. s.n. 00 August 1910
Podosphaera oxyacanthae (DC.) de Bary
USSR, Kuuterselke, near Mustamaeki, Vyborg Prov.

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0077461
W. Tranzschel #s.n. 00 August 1910
Podosphaera oxyacanthae (DC.) de Bary