Because of this detour, the leadership of the expedition was taken from Heuglin. They used the break to visit Kurdufan, where they followed the traces of Theodor Kotschy. On 25 January 1863 they joined Alexine Tinne on her tour up the White Nile to the Bahr el Ghasal. Steudner died of fever on 10 April 1863 in Waw near the Jur River.
Steudner visited regions which had never been explored by a botanist before. Hence, his careful reports were of high importance. Renowned herbariums, such as Kew Royal Botanic Gardens London, Natural History Museum London, Muséum national d'Histoire naturelle Paris, Swedish Museum of Natural History Stockholm, and South African National Biodiversity Institute National Herbarium Pretoria, keep specimens that he collected.
^Ernst Haeckel. Entwicklungsgeschichte einer Jugend, Briefe an die Eltern 1852/1856. Leipzig, KF. Köhler, 1921
^Schindler. Nekrolog. Vorgetragen zur Hauptversammlung im October 1863. in: Abhandlungen der Naturforschenden Gesellschaft zu Görlitz, Vol. 12, pp. 201-205, 1865
^Hermann Steudner. Travel reports in Zeitschrift der Berliner Gesellschaft für Erdkunde und Zeitschrift für allgemeine Erdkunde 1861-1864.
^Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. ISBN978-1-4214-0135-5. ("Steudner", p. 253).
Meyers Konversationslexikon, 1885–1892, Vol. 15, p. 309
James Quirin. "Caste and Class in Historical North-West Ethiopia: The Beta Israel (Falasha) and Kemant, Journal of African History, Vol. 39, 1998, pp. 195–220
Georg Schweinfurth. Beitrag zur Flora Aethiopiens. G. Reimer Berlin, 1867 online
Annelore Rieke-Müller. Der Blick über das ganze Erdenrund - Deutsche Forschungsreisen und Forschungsreisende im 19. Jahrhundert bis zur Deutschen Afrika-Expedition 1860-1863. WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 1999