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

Uppsala University Exsiccati
Catalog #: L-115335
s.n.
Porpidia albocaerulescens (Wulfen) Hertel & Knoph
Switzerland, Grimsel

Arizona State University Lichen Herbarium
Catalog #: 507812
L.E. Schaerer s.n.
Lecidea albocaerulescens var. alpina Schaer.
Switzerland, Bern/Valais (Wallis), Grimsel