268 INDEX I. 



PAGE 



It may grow by adding thickness to its sides 

 without advancing; but its essential cha- 

 racteristic is the vital power of Advance 151 



It may be round, square, or polygonal, but is 



always roundly minded 151 



Its structural power is Spiral 153 



It is essentially branched; having subordinate 

 leaf-stalks and flower-stalks, if not larger 

 branches 154 



It developes the buds, leaves, and flowers of 

 the plant. 



This power is not yet properly defined, or ex- 

 plained; and referred to only incidentally 

 throughout the eighth chapter . . 149 — 153 



II. The Leaf-stalk (Cymba) sustains, and 



expands itself into, the Leaf . . 147 — 149 

 It is essentially furrowed above, and convex 



below 148 



It is to be called in Latin, the Cymba; in 



English, the Leaf-stalk 150 



III. The Flower-stalk (Petiolus): 



It is essentially round 144 



It is usually separated distinctly at its termi- 

 nation from the flower 144, 145 



It is to be called in Latin, Petiolus ; in 

 English, Flower-stalk 



