218 



Fig. ( ). Cutting of a 

 portion of sucker show- 

 ing new routs and 

 shoots. 



thickness or a little smaller) were buried one inch deep in a flat of 

 sand. About thirty cuttings of the underground portions of 



stickers (stems) of similar size were set 

 in the other half of the Hat. When ex- 

 amined on June ( 'th about half of the 

 root cuttings were dead, the remainder 

 had made some callus tissue, but there 

 were 110 signs ol new root or shoot 

 growth. On the other hand all the cut- 

 tings ol underground stems were alive, 

 twenty eighl out of thirty had started to 

 grow, and about half had new roots and 

 shoots comparable to those shown in Fig. 

 9. Syringa Josikaea similarly propa- 

 gated is shown in Fi"\ 10. 1 lowevcr all 

 ot this is probably of academic inter- 

 est only, because the plants raised by 

 this method grow too slowly to in- 

 terest nurserymen; while amateurs. 

 who usually need only a ivw plants, 

 will find it more convenient to dig 

 up entire suckers to increase their 

 stock. 



>S uckers. — These are branches which 

 are given off below the surface of the 

 soil. They may develop horizontally 

 tor a short distance but finally grow 

 erect and produce leafy shoots above 

 and roots below. On lilacs they usu- 

 ally occur in profusion and, if the lilac 

 is known to be on its own roots, may 

 be dug up for propagative purposes in 

 the spring or fall, when dormant. If 

 the named variety was grafted on a 

 seedling lilac the use of suckers might 

 result in the propagation of the un- 

 derstock rather than the variety de- , ,,, 



I' [G. 10. ( utting (il a portion ol 



sired. 1 , c ■ 1 ■< \ 



sucker {.Syrntiju Josikaea). 



