
PLATE XVIII.— SEEDLINGS oF DOoDDER AND ALFALFA, 
I, left, dodder seedling; right, alfalfa, seedling; 2, same seedling, three days later; 
dodder attached to alfalfa, lower portion withering; 3, left, three dodder seed- 
lings; right, dodder seedlings attaching themselves to alfalfa seedlings; 4, dodder 
attacking alfalfa seedling. 
(All natural size.) 
