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

Uppsala University Exsiccati
Catalog #: L-115334
s.n.
Aspicilia calcarea (L.) Mudd
Switzerland, Buembach

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00035077
L.E. Schaerer, Bernae #s.n.
Porpidia speirea (Ach.) Krempelh.

Duke University Herbarium
Catalog #: 17459
bdec19da-fa34-11e2-a92b-005056000560
Schaerer, Ludwig, Emanuel #s.n.
Rhizocarpon umbilicatum (Ramond) Flagey
Switzerland, Buembach.