Schaerer: Lich. Helv. Exs.
Ludwig Emanuel Schaerer [1-650]

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00031267
L.E. Schaerer, Bernae #s.n.
Lecidea rosella (Pers.) Ach.
, Supra Frienisberg.

Uppsala University Exsiccati
Catalog #: L-131267
Ludov. Eman. Schaerer s.n.
Bacidia rosella (Pers.) De Not.
Switzerland, supra Frienisberg