38 
BULLETIN 465, U. S. DEPARTMENT OF AGRICULTURE. 
plant springs from an upright rootstock (fig. 33) which bears some 
resemblance to an unopened pine cone. The rootstocks vary in size 
Fig. 33. — Small rootstocks of banana waterlily. (Natural size.) 
up to 2 inches thick and 12 inches long. The smaller ones (at least up 
to If inches long by three-fourths of an inch thick) are swallowed by 
ducks. 
