Vhoio., Thpt. Af/r/rirlfun:, Bri^hnnt. 



Fig. 24. — Segments and fruit.s of 0. auraiitiaca, from Roma. This low-growing brittle 

 prickly pear is the notorious "Jointed Cactus" of South Africa 





ilk. iL-,^ 



I'linto. hy T)r. Britten. Dinitnr. .A'( «■ \ orl: Botanic Garth na. 

 Fig. 2o. — 0. iurvmix (identified by Dr. X. Brittnn). Boat Key, Florida. 



