. 
ee ee ee ee ee ee ee ee oe ee ee 
’ ‘ 
Propagation by Parts Lntact. 179 
however, propagation by suckers is by far the most conven- 
ient method, and it appears to be followed by no bad 
results. 
348. Propagation by Stolons. A stolon is a branch 
that starts above or at the surface of the ground, and either 
grows prostrate, or curves 
downward till it reaches the 
ground, where it takes root, 
usually at the nodes (116). The 
currant, juneberry, cranberry, 
and many herbaceous plants are 
readily multiplied in this way. 
Stolons often root without as- 
sistance, but the rooting is 
= 
Fic. 80. Sucker plants of the red 
raspberry, Rubus strigosus. A, before Much hastened and encouraged 
growth has started; B, after. Thetwo, Snr : 
shoots of B starting just above the by covering the branch with 
routs form the new canes. soil. When 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 (358). Some 
herbaceous plants are, how- 
ever, more readily propa- 
gated by stolons than by any 
other means. 
The offset, by which the 
houseleek* is so readil y Fic. 81. Tip plant of black raspberry. 
propagated, is a very short The bud, whence the young shoot starts, 
e appears at the base of the parent cane. 
stolon that forms a single (after Bailey). 
* Sempervivum. 
