Nopal

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Inc Pharr Nurseries

The illustrated reference on cacti and other succulents

Edgar Lamb

Desert giant

Barbara Bash

Prairie Gem Ranch seeds

Claude A. Barr (Firm)

Cactus guide

Ladislaus Cutak

Aerial Imagination in Cuba

Alexandrine Boudreault-Fournier

Cactus growing for beginners

Vera Higgins

Phanerogams

A. R. A. Gorts-van Rijnm

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Lida Delap's Cactus Gardens

Cacti of the Southwest

W. Hubert Earle