Schaerer, Lich. Helv. Exs. Ed. II [Bernae (Berne)]
Ludwig Emanuel Schaerer [1-250]
IndExs #729589223

Duke University Herbarium Lichen Collection
Catalog #: 395890
38bedc60-1520-4b56-9011-8655e72b29f3
unspecified #s.n.
Pertusaria pertusa (L.) Tuck.
Switzerland, Bern, Circa Bernam