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

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00025091
L.E. Schaerer #s.n.
Arthonia biformis var. spilomatica Schaer.
, Ad truncos quercinos circa Lorch and Rhenum. Bayrhofer.