1. Adamson, R. J., Slater, T. N., 1950: Flora of the Cape Peninsula. ? Capetown: Jute & Co.
2. Amico, A., 1947: Osservazioni suSternbergia lutea Ker-Gawl. ? Nuovo Gior. Bot. Ital. N. S.,54, 748?771.
3. Arber, E. A. N., 1910: Plant Life in the Alpine Switzerland. ? London: J. Murray.
4. Baker, J. G., 1872: Revision of the genera and species ofScilleae andChlorogaleae. ? Linn. J. Bot.13, 203?292.
5. ?, 1888: TheAmaryllideae. ? London: G. Bell & Sons.