List of sources:
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Bayer, A.W. Discovering the Natal flora. Natalia, December 1974, No. 4, pp. 42-48.
Gunn, M. & Codd, L.E. Botanical exploration of southern Africa. Cape Town: Balkema, 1981.
Kerkham, A.S. Southern African botanical literature, 1600-1988. Cape Town: South African Library, 1988.
National Union Catalogue, pre-1956 imprints. London: Mansell, 1968-1980.
Notes on botanical observations, compiled by Edward Armitage. Archives Hub. Retrieved on 6 January 2023 from https://archiveshub.jisc.ac.uk/search/archives/2a34d789-d778-333a-bf3b-70577c298111
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Wyley, C. A bibliography of contemporary writings on the natural history of Natal and Zululand in the 19th and early 20th centuries. Journal of Natal and Zulu History, 1990/1, Vol. 13, pp. 91-110.