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

Arizona State University Lichen Herbarium
Catalog #: 507770
L.E. Schaerer s.n.
Cetraria tristis (Weber ex F.H. Wigg.) Fr.
Switzerland, ?, ?, High Alps

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00026751
L.E. Schaerer #s.n.
Cetraria tristis (Weber ex F.H. Wigg.) Fr.
Switzerland, Alpes editiores, ad saxa.