ARUM FAMILY 65 
stem just above this bulb they send downward 
strong roots that in turn send out from near 
their tips numerous side branches. When these 
have become firmly established the main roots 
contract and thus pull the bulb downward. 
JACK-I N-THE-PULPIT 
JACK-IN-THE-PULPIT. Every child knows the 
Jack-in-the-pulpit which is found in blossom so 
commonly in rich, moist woods during May. The 
structure of the flower is very similar to that of the 
familiar Calla, or Calla Lily, of the greenhouse, 
5 
