Dusén, Musci Afr. Camerun.
Per K. H. Dusén [1 - 921]

University of Wisconsin - Madison
Catalog #: WIS-B-0045460
P. Dusén #s.n. 00 July 1891
Isopterygium Mitt.
Cameroon, in montibus Camerunensibus supra Bueam pagum