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

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00027513
L.E. Schaerer, Bernae #s.n.
Cladonia digitata (L.) Hoffm.

Uppsala University Exsiccati
Catalog #: L-114256
Schaerer s.n.
Cladonia digitata (L.) Hoffm.
Switzerland, Ad Abietis in sylvis circa Bernam