THE VEGETATIVE ORGANS COMPARED 331 
Thus it is enabled to live from year to year, or, in a word, is a 
perennial. Whenever we find an herb retaining the remains 
of more or less withered leaves and stems, or of shrunken roots 
Fic. 284.—Christmas Rose. A, flower, entire. B, same, cut vertically. 
C, floral diagram. D,staminode. £, pistil. (LeMaout and Decaisne.) 
Fic. 285, I.—Mouse-tail. Flower, entire. Same, cut vertically. (Baillon.) 
evidently belonging to a previous year, and at the same time 
having organs, underground or near the surface, swollen 
with food evidently destined to supply material for the 
