35 
STRUCTURE AND LIFE HISTORIES 
FIG. 258. Sempervimm teclorum, with stolons. 
FIG. 259. Chlorophytum elatum R. Br., showing vegetative propagation 
by runners. P 1 , P 2 , P 3 , new plants; P, parent plant. From P 2 one root, 
and from P 1 two roots hang down. 
