USDA United States National Fungus Collections
Catalog #: BPI 995085
s.n.
Phragmidium obtusum Link

USDA United States National Fungus Collections
Catalog #: BPI 995535
s.n.
Phragmidium obtusum Link

University of California Berkeley, University Herbarium
Catalog #: UC1140652
Gerstenberger #s.n. 00 September 1857
Phragmidium potentillae (Pers.) P. Karst.
Germany, "pr. Dresdam"