PROPAGATION BY SEPARATION AND DIVISION 65 



remove and plant them. Certain leafy growing offsets are 

 called suckers by gardeners. 



Many of the greenhouse plants are propagated by the leafy 

 offsets, as pandanus or screw-pine, billbergias, upright tilland- 



FIG. 53. The fruit or pineapple removed and the basal slips developed. 



sias. Some of the palms produce offsets or suckers, as, for 

 example, the date palm. 



The pineapple is propagated by various kinds of offsets, 

 which receive special names by pineapple growers. There are 

 five general kinds of offset parts : the crown or top-shoot of 

 the fruit, which is not often used for propagation ; crown-slips, 

 that arise at the base of the crown (AA, Fig. 52) ; slips at the 

 base of the fruit (TT, Fig. 52, and Figs. 53-55) ; suckers from 

 the base of the plant or near the ground ; separate shoots from 

 underground parts, known as rattoons. These parts are 

 treated as cuttings and might be classified under Chapter V 



