Havaas, Lich. Exs. Norveg. [Bergen]
Johan J. Havaas [1-725]
IndExs #622937857

Lichen Herbarium of the Museum of Evolution, Uppsala University
Catalog #: L-137300
J.J. Havaas s.n. 16 July 1905
Acarospora impressula Th. Fr.
Norway, Akershus, Hovedøen ved Kristiania