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

Uppsala University Exsiccati
Catalog #: L-115327
s.n.
Lecidea confervoides Vain.
Switzerland, Gurten

Arizona State University Lichen Herbarium
Catalog #: 507875
L.E. Schaerer s.n.
Lecidea confervoides var. concreta (Ach.) Schaer.
Switzerland, Bern, Gurten