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

University of Wisconsin - Madison
Catalog #: WIS-B-0042320
P. Dusén #s.n. 00 October 1891
Callicostella (Müll. Hal.) Mitt.
Cameroon, Ad Ekundu N’dene emporium