54 PLANT MIGRATION 
flowers as in many Leeks (Allium spp.). These 
usually fall from the parent when mature, and being 
comparatively small and possessed of considerable 
Fic. 7.—CorAaL Root (DENTARIA BULBIFERA). 
a, Upper half of shoot, 3; b, creeping stem, 4; c, bulbil, 3. 
vitality, they may achieve a considerable dispersal 
before they send out roots and fasten themselves to 
the soil. An example is figured (Fig. 7). In this 
plant (Dentaria bulbifera, the Coral Root, a rather 
