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

Uppsala University Exsiccati
Catalog #: L-115253
s.n.
Verrucaria plumbea Ach.
Switzerland, In m. Hogant et Stockhorn

Arizona State University Lichen Herbarium
Catalog #: 507851
L.E. Schaerer s.n.
Verrucaria plumbea Ach.
Switzerland, Bern, Hogant Mountains and Stockhorn Mountains