Index Kewensis Plantarum Phanerogamarum
Nomina et Synonyma omnium generum et specierum a Linnaeo usque ad annum 1885 complectens (...) sumptibus Darwin. Hooker. Jackson. Oxford. Clarendon. 1895. Added: Supplement I. Durand & Jackson. Oxford University Press, 1906.
3 volumes, folio. Comprehensive bibliography with almost 400.000 names. The Index Kewensis (IK) is maintained by the Royal Botanic Gardens, Kew, (Kew gardens): its objective is to register all formal botanical names of seed plants, on the level of species and family. The index was initiated in 1885 by Charles Darwin, with regular supplements to newly published names. Combined with: The Succulent Euphorbieae. Southern Africa. Alain White et al. 2 volumes. Abbey Garden Press. Pasadena. 1941. (total 5)