792 



THE BOOK OF GARDENING. 



Trailing or 



Cliinhi7ig Sorts : 



flowering 



These include most 

 species, which have very beautiful and 

 blossoms. C. gratidiflorus (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 May 

 a cross between C. speciosissiimis and 

 C. grandijiorits ; the petals 

 are cupped, and the flowers 

 are rich red, tinged with 

 orange, and will last several 

 days. C. Macdonaldice has 

 larger flowers than C. grandi- 

 ^oriis, 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 

 i4in. across ; the large bright 

 scarlet fruit is also orna- 

 mental. C. eruca is a quaint 

 creepmg species, with stems 

 between 2ft. and 3ft. long, 

 and yellow flowers. 



Globular Species : Many of 

 from their size are best suited 



of the night- 

 strongly-scented 



Fig. 525. — Cereus grandiflorus. 



these are 

 for small 



(Fig 



Fig. 526. — Cereus c^spitosus. 



of great interest, and 

 houses. C. ccespitosiis 

 526) attains a height 

 of about Sin. ; 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 4in. in 

 height and 3in. round, much 

 ribbed and covered with 

 stiff white spines ; flowers 

 yellow. C. Fendleri has 

 pale green stems and is 

 very dwarf; the flowers 



