Săvulescu, Herb. Mycol. Roman.
T. Săvulescu [1-1750]

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0072167
s.n.
Leptothyrium populi Lib.

USDA United States National Fungus Collections
Catalog #: BPI 1019124
s.n.
Leptothyrium populi Fuckel
Romania

Purdue University, Kriebel Herbarium
Catalog #: PUL00027911
C Sandu-Ville s.n. 26 August 1951
Leptothyrium populi Lib.
Romania, Iasi, Poeni;

Cornell University Plant Pathology Herbarium
Catalog #: Herb.Myc.Rom.1743
Ray New s.n.
Leptothyrium populi Lib.