Dusén, Musci Afr. Camerun.
Per K. H. Dusén [1 - 921]
IndExs #1579592191

University of Wisconsin - Madison
Catalog #: WIS-B-0046056
P. Dusén #s.n. 00 July 1892
Microthamnium
Nigeria, Ad "Old Calabar" emporium