ON CACTI AND OTHER SUCCULENTS 79 1 



appear ; these are about 2in. long, white, with yellow anthers. 

 A. Williamsii (Fig. 524) is an attractive plant, with pale rose 



Fig. 524. — Anhalonium Williamsii. 



flowers ; from its puffed-out appearance it is called the 

 Dumpling Cactus. 



Cereus (Torch Cactus). — Amongst these are the tallest of the 

 Cacti, but in their early stages under cultivation they are very 

 slow growing. Most of the species have straight, erect stems, 

 but there are others which have a procumbent or trailing habit, 

 and many of these may be used as climbers. Both kinds bear 

 handsome flowers, and many are free blossomers, but the trailing 

 kinds are the better, comprising as they do the night-flowering 

 and sweet-scented varieties. 



Erect Sorts with Pillar-like Stems: C. giganteus, as its name 

 implies, is the giant of the family. In its native habitat it 

 attains to a height of 6oft. In its young state the stems are 

 globular, only attaining their pillar-like appearance after some 

 years. The flowers are produced when about ioft. high, and 

 they are about 5m. long. C. carulescens is a tall species, with 

 large white flowers and blue stems. C. peruvianus is tall, with 

 very spiny stems ; the flowers are large, white, tinged with red, 

 opening out fiat. C. repandus attains a height of about ioft, 

 and has very beautiful white flowers. C. Royeni has ornamental- 

 ridged stems. C. variabilis is of a branching habit, with white 

 flowers. 



