792 



THE BOOK OF GARDENING. 



Trailing or Climbing Sorts: These include most of the night- 

 flowering species, which have very beautiful and strongly-scented 

 blossoms. C. grandiflorus (Fig. 525) 

 has cylindrical stems and large pure 

 white flowers ; it is alike the best- 

 known and the finest of this section, 

 and has been called the Queen of the 

 Night. C. grandiflorus Maynardi is 

 a cross between -C. speciosissimus and 

 C. grandiflorus; the petals 

 are cupped, and the flowers 

 are rich red, tinged with 

 orange, and will last several 

 days. C. Macdonaldia has 

 larger flowers than C. grandi- 

 florus, but they are not 

 scented. C. nycticalus is a 

 fine night blossomer, with very 

 bright yellow and white 

 flowers. C. triangularis is 

 well-known by its triangular 

 stem ; it is a quick grower, 

 and climbs freely; the flowers 

 are white, from i2in. to 

 14m. across ; the large bright 

 scarlet fruit .is also orna- 

 mental. C. eruca is a quaint 

 creeping species, with stems 

 between 2ft. and 3ft. long, 

 and yellow flowers. 



Globular Species : Many of these are of great interest, and 

 from their size are best suited for small houses. C. caspitosus 



(Fig. 526) attains a height 

 of about 8in. ; it has gene- 

 rally a number of side 

 growths which form into 

 clusters ; it is grey-green, 

 covered with reddish spines 

 and white wool ; the flowers 

 are rose with yellow centres ; 

 very suitable for windows. 

 C. ctenoides is about 4m. in 

 height and 3m. round, much 

 ribbed and covered with 

 stiff white spines ; flowers 

 yellow. C. Fendleri has 

 pale green stems and is 

 Fig. 526. — Cereus c/espitosus. very dwarf; the flowers 



Fig. 525. — Cereus grandiflorus. 



