O. Jaap and C. Brick [1-959]

USDA United States National Fungus Collections
Catalog #: BPI 418454
Jaap Otto s.n. 30 June 1915
Ramularia petasitis S?vul. & Sandu
Germany, Thuringia, Stuetzerbach, near Ilmenau alt. ca. 600 meters

USDA United States National Fungus Collections
Catalog #: BPI 975577
Jaap Otto s.n. 30 June 1915
Ramularia petasitis Săvul. & Sandu
Germany, Thuringia, Stuetzerbach, near Ilmenau alt. ca. 600 meters

Purdue University, Kriebel Herbarium
Catalog #: PUL00028273
O Jaap s.n. 30 June 1915
Ramularia petasitis (Bäumler) Jaap
Germany, Thuringen, Ilm-Kreis, Ilmenau; Stutzerbach

Cornell University Plant Pathology Herbarium
Catalog #: JaapF.sel.-0796
Otto Jaap s.n.
Ramularia

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0081791
Otto Jaap #s.n. 30 June 1915
Ramularia petasitis (Bäumler) Jaap