Pereskia (Cactaceae) by Leuenberger, Beat Ernst fromMemoirs of the New York Botanical Garden 0 Type: Book
The new cactus lexicon: descriptions and illustrations of the cactus fami… by Hunt, David, International Cactaceae Systematics Group 0 Type: Book
The subgenus Tephrocactus: a historical survey with notes on cultivation by Leighton-Boyce, Gilbert, Iliff, James 0 Type: Book
