Succulent Flora of Southern Africa [Revised Edition]

Court, Doreen

Ariocarpus et cetera

Pilbeam, John; Bill Weightman

The Genus Fouguieria

Scott, Robert

Daphnes: A Practical Guide for Gardners

White, Robin

Piante Frasse Speciale 1995

Hammer, Steven

Growing Bonsai- A Practical Encyclopedia

Norman, Ken

Bradleya: Yearbook of the British Cactus and Succulent Society, November 1993

Rowley, Gordon D. [Editor]

Kakteen in Brasilien Cacti in Brazil

Herm, Konrad; et al

Melocactus Care and Cultivation

Thomson, George

Australian Flora in Colour Flowers and Plants of Western Australia

Erickson, Rica; et al

The Concise British Flora in Colour

Martin, W. Keble

Sedum Cultivated Stonecrops

Stephenson, Ray