12. Eggli (Urs & Heidrun E. K. Hartmann, editors) Illustrated Handbook of Succulent Plants,6 vol., comprising Monocotyledons; Dicotyledons; Aizoaceae A-E; Aizoaceae F-Z; Asclepiadaceae; Crassulaceae, original pictoral boards, 4to, New York, Springer, 2001-2003.
est. £200 – £300