186 Principles of Plant Culture. 



the i;i-ouncl, where it takes niot, usually at the nodes 

 (116). The currant, junelterry, cranberiy and many 

 herljaceous plants are readily nurltiplied in this way. 

 Stolons often root without assistanee, but the rooting is 

 uineli hastened and encouraged liy co\'ering the branch 

 with soil. ^\"hen well rooted, the young plants may be 

 separated from the parent by cutting the stolons. 



"Woody plants grown from stolons are seldom uniform 

 in size and are not often as well rooted as those grown 

 from cuttings (.35S). Some herbaceous plants are, how- 

 ever, more readily propagated by stolons than by any 

 other means. 



The offaet l.iy which the houseleek * is so readily prop- 

 agated, is a very short stolon that forms a single tuft of 

 leaves at its apex. The cane of the black-cap raspberry, f 

 which I'oots from the tip (Fig. Sl2 j, and the runner of the 

 strawbei'ry (Fig. 83), that forms a plant at each alternate 

 node, aie modified stolons. 



349. Propagation by Layers or Layering. The layer is 

 an artificial stolon, i. e., a luauch that does not naturally 



grow downward, 

 which is covered with 

 o r surrounded b y 

 m( list soil to stimulate 

 the production o f 

 r o o t s (89). The 

 branch may be bent 



Fig. 8.S. Runner of the strawberry. ClOWU and COVered, aS 



is usually practiced with the grape, Avisteria etc., or the 

 soil may be ridged up about the Ijranch, as is done with 



* >Seinj)frr/vuiii. f Ruhus occidenlafis. 



