COMPOUND LEAVES. 



29 



ply pimiate, having several leaflets 

 arranged along both sides of the com- 

 mon stalk. This common stalk, an- 

 swering to the midvein of a simple 

 leaf, is called the rachis. 



37. Among pinnate leaves, there 

 are, at least, three important distinc- 

 tions. Observe the Figs. 59, 60, and 

 61. One of them ends with an odd 

 leaflet,^ and is called odd-pinnate. 

 Another ends with a pair of leaflets, 

 and is, equally pinnate. Another still 

 has its alternate leaflets smaller, and is interruptedly pinnate. 



Fig. 58. Leaf of the Eose. 



Fig. 59. Odd-pinnate leaf ( repArosM). Fig. 61. Interruptedly pinnate (Agrimony). 

 Fig. 60. Equally pinnate leaf {Cassia). Fig. 62, Pinnately ternate {Vesmodivm). 

 Fig. 63. Palmately ternate (Clover). 



36. Define the pinnate leaf. What is the rachis ? 



37. Give the distinction between odd-pinnate and equally pinnate. What 

 ]eaf is interruptedly pinnate '/ 



