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

University of Wisconsin - Madison
Catalog #: WIS-B-0045461
P. Dusén #s.n. 00 December 1890
Isopterygium Mitt.
Cameroon, In montibus Camerunensibus ad Bomanam pagum