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

Arizona State University Lichen Herbarium
Catalog #: 507840
L.E. Schaerer s.n.
Cetraria aculeata f. alpina (Schaer.) H. Olivier
Switzerland, ?, ?, High Alps

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00028806
L.E. Schaerer, Bernae #s.n.
Coelocaulon aculeatum (Schreber) Gyeln.
Switzerland, Alpes editiores, ad saxa.