Per Karl Hjalmar Dusén
Per Karl Hjalmar Dusén (1855–1926) was a Swedish civil engineer, botanist and explorer. He made botanical expeditions to Africa, Greenland, and South America. During his expeditions to Greenland, he visited Disko Island to catalogue the variety of flowering plants, horsetails and ferns.
Also recorded as Dusén · Per Karl Hjalmar Dusen · Dusen · P. Dusén
Per Karl Hjalmar Dusén

Gösta Florman · Etnografiska Museet, Stockholm: 0143.0026 · Public domain
- Name
- Per Karl Hjalmar Dusén
- Born
- 1855
- Died
- 1926
- Nationality
- Sweden
- Occupation
- botanist · cartographer · scientific explorer · mechanical engineer · paleontologist · botanical collector · bryologist · scientific collector
- Fields
- botany
- Languages
- German
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Documentary summary
Per Karl Hjalmar Dusén (1855–1926) was a Swedish civil engineer, botanist and explorer. He made botanical expeditions to Africa, Greenland, and South America. During his expeditions to Greenland, he visited Disko Island to catalogue the variety of flowering plants, horsetails and ferns.
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wikidata · Q5625930 · wikipedia · Per Karl Hjalmar Dusén
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Biography
Biography
Between 1890 and 1892, Dusén collected nearly 560 leaf fossils preserved in basalt in the vicinity of Mount Cameroon on the west coast of Cameroon. Later, these fossils were studied by the German paleobotanist Paul J. Dusén edited three exsiccatae devoted to bryophytes, among them one with the title Musci Africani in Camerunia a P. Dusén collecti (1893) and another work with the title Hepaticae Africanae in Camerunia a P. His botanical specimens are at the New York Botanical Garden, being obtained when they acquired the herbarium of Princeton University in 1945.
Key facts
Key facts
• Name — Per Karl Hjalmar Dusén • Born — 1855 • Died — 1926 • Citizenship — Sweden • Fields — botany • Author Abbrev Bot — Dusén
Life and career
Dated record
Life and career
The full dated record · 2 entries
1855
Per Karl Hjalmar Dusén born.
1926
Per Karl Hjalmar Dusén died.
Honours
More than 200 species were named in his honour, including: • (Acanthaceae) Acanthus dusenii C.B.Clarke • (Acanthaceae) Justicia dusenii (Lindau) Wassh. & L.B.Sm. in Reitz • (Anacardiaceae) Trichoscypha dusenii Engl. • (Annonaceae) Guatteria dusenii R.E.Fr. • (Apiaceae) Azorella dusenii H.Wolff • (Apiaceae) Centella dusenii Nannf. • (Apiaceae) Trachymene dusenii (Domin) B.L.Burtt • (Aspleniaceae) Asplenium dusenii Luerss. • (Teiidae) Salvator duseni Lönnberg, 1910 Dusén Fjord in northeastern Greenland was named in his honour. Per Karl Hjalmar
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1- SwedenPlace
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The authorities additionally record the headings Dusén, Per Karl Hjalmar Dusen, Dusen, P. Dusén and P.K.H. His recorded language was German. He was the child of Carl Oscar Dusén. Other recorded relations include Karl Fredrik Dusén. Recorded as botanist, cartographer, scientific explorer, mechanical engineer and paleontologist.
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The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 16 August 2026.
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