Räsänen, Lich. Fenn. Exs. [Helsinki]
Veli J. P. B. Räsänen [1-1000]
IndExs #166741729

Lichen Herbarium of the Museum of Evolution, Uppsala University
Catalog #: L-534318
Arvo Koskinen s.n. 26 August 1937
Arthrosporum populorum A. Massal.
Finland, Saarijärvi, Tavastia borealis; Mahlu, Lylymäki