Gentianaceae, Apocynaceae et Vochysiaceae Paranenses a Dre P. Dusén collectaeGust. O. An Malme, P. Dusén · First published 1928Open the Tome
Spiders collected in the Aysen Valley in South-Chile by P. DusénAlbert Tullgren · First published 1902Open the Tome
Enumeratio hepaticarum insulae Jan Mayen et Groenlandiae orientalis a cl. P. Dusén in itinere groenlandico suecorum anno 1899 collectarumC. Jensen · First published 1900Open the Tome
Hymenomycetes Fuegiana a cell.viris P.Dusén et O.NordenskjöldGiacomo Bresadola · First published 1900Open the Tome
[Letter] 1939 January 24, Paris / Henry P. Van DusenHenry P. Van Dusen · First published 1939Open the Tome
