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

Arizona State University Lichen Herbarium
Catalog #:
L.E. Schaerer s.n.
Parmelia pulverulenta var. grisea (Lam.) Schaer.
Switzerland, ?, ?, ?

Duke University Herbarium Lichen Collection
Catalog #: 396363
ff86389b-5469-4fe4-b4e8-6986cc5ba764
Schaerer, Ludwig, Emanuel #s.n.
Physconia grisea (Lam.) Poelt
Switzerland, Switzerland, unspecified