We use pretty much standard taxonomy for the Crassulaceae, using the following resources.
Eggli, Urs, 2003,
Illustrated Handbook of Succulent
Plants: Crassulaceae: Springer-Verlag,
Berlin, Germany.
Pilbeam, J., C. Rodgerson, and D. Tribble, 1998, Adromischus: The Cactus File Handbook 3.
Thomson, P.H., 1993, Dudleya and Hasseanthus Handbook: Lamb Printers, Australia.
van Jaarsveld and D. Koutnik, 2004, Cotyledon and Tylecodon: Umdaus Press, Hatfield, South Africa. |
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