In 1918, while continuing his work for the Paraense Museum, he collaborated with the Rio de Janeiro Botanical Garden and the Instituto Agronômico do Norte.
He died in Fortaleza in 1959 before witnessing the fulfillment of his dream: In 1963, the Reserva Florestal Adolpho Ducke was established and named in his honour.
Also named in his honour is a botanical garden east of Manaus, and the phytochemical research laboratory at the museum in Belém.
Ducke's entomological material is currently located at the Museu Paraense Emílio Goeldi in Belém, the Natural History Museum of Bern, the Museu de Zoologia of the University of São Paulo, and The Natural History Museum, in London.
[1] Adolpho Ducke has been honoured in the naming of several genera of plants including; Duckea (in 1958 [2]), Duckeanthus (in 1934 [3]), Duckeella (in 1939 [4] ), Duckeodendron (in 1925 [5]) and Duckesia (in 1961 [6]).