64 A TEXT-BOOK OF BOTANY 
impossible to remove from the soil all of the indefinitely 
branching rhizomes, and any nodes that remain are able 
to send up fresh crops of aerial branches. 
In many cases 
Fic. 62.—Rootstock of a Juncus, showing how it advances beneath the ground 
and sends up a succession of branches; the breaking up of such a rootstock only 
results in separate individuals. 
only a single aerial branch is sent up each year, as in wild 
ginger, Solomon’s seal (Fig. 63), iris, bloodroot, ete.; in 
Fic. 63.—Rootstock of Solomon’s seal, showing terminal 
bud, the base of this year’s aerial branch, and scars of 
the branches of three preceding years.—<After Gray. 
ply large leaves developed directly by the 
others, leaves 
and flowers 
may be sent up 
separately by 
the rhizome. 
In the com- 
mon ferns, it 
will be noted, 
the so-called 
fronds are sim- 
rhizome.  Per- 
haps even more familiar is the extensive rhizome system 
