MAKING XEW KINDS OF PLANTS 



427 



All these are propagated by cuttings, so that there is 

 no trouble over iixation (see p. 433) . Thus in the short 

 space of a few years a disagreeable weed has been 

 transformed into a splendid ornament of the garden! 



Variation in stems of hybrid Blackberries, all from the seed of one plant. 



One of the most striking traits of hybrids is their 

 tendency to vary widely. Figures 243 and 244, show- 

 ing the variation in leaves and stems of Blackberry 

 hybrids all raised from the seed of a single plant, 

 will repay careful study (the colors of the stems are 

 as variable as the forms) ; what points of difference 

 can you distinguish in these specimens? The parent 

 forms are not shown in this case, but in Fig. 245, 

 illustrating the leaves of hybrids between the Oriental 



