Schaerer, Lich. Helv. Exs. Ed. I [Bernae (Berne)]
Ludwig Emanuel Schaerer [1-650]
IndExs #729589223

Duke University Herbarium Lichen Collection
Catalog #: 396276
a5c018ea-8a12-4546-9fac-b9ab4d85f64e
Schaerer, Ludwig, Emanuel #s.n.
Physcia dubia (Hoffm.) Lettau
Switzerland, Bern, Circa Belp