Ch. IX.] LEAVES, 55 
213. Pinnate; at Fig. 35, a, represents the petiole or prin- 
cipal leaf stalk; from this, spring out other divisions, each bear- 
ing a leafet; 6, 6, represent the stipules or appendages; the 
whole taken together forms one compound pinnate leaf. The 
term pinnate is from the Latin pinna, a wing or pinion. _ 
214, Binate; when two leafets only spring from the peuole, . 
as in Fig. 35, c. 
Fig. 36. si 
Fig. 36, a. sain 
216. Bi-ternate is a second division of threes, as Fig. 36, b. 
217. T'ri-ternate is a third division of threes, as Fig. 36, c. 
4 Fig. 37, 
218. Decompound, is when a pinnate leaf is again divided, 
or has its leaves twice compound, as Fig. 37, a. At b, is a re- 
presentation of thrice compound leaves. 
219. Leaves vary in size, from the small leaves of some of 
213. What does pinnate signify ? 
_ 214. What is binate 2 
215. When is a leaf said to be ternate? 
216. When bi-ternate ? 
217. When tri-ternate ? 
218. When is a feaf said to be decompound ? 
219. What is remarked of leaves with respect to size? 
