64 



LESSONS WITB PLANTS 



first pair, in a vertical shoot. A similar arrange- 

 ment is suggested by the bud-scales of the Nor- 

 way maple (Fig. 50), and also by the four ex- 

 panding leaves of horse-chestnut (Fig. 60). The 

 pupil must now examine all these plants, if he has 



access to them, or 

 their near relatives, 

 and see if there 

 is a definite arrange- 

 ment of buds on the 

 winter twigs. He 

 will find plants, at 

 all events, in which 

 the buds are oppo- 

 site each other. If 

 the pairs are suc- 

 cessively in the same 

 position, or exactly 

 over each other 

 (which is rare), the 

 buds will form two 

 rows up and down 

 the stem. If they alternate (as in maple, horse- 

 chestnut and honeysuckle), they make four rows, or 

 are decussate. 



65. A common galium or bedstraw is shown in 

 Fig. 63. The plant (a low herb)— or some of its 

 kin — is common in moist places and in woods. 



Fio. 63. 

 Whorled leaves of galium. 



