LECT. IX.] LEAVES. 509 



the synonime of nerved, and is certainly the more 

 proper term of the two ; but it is, also, specifically 

 used to imply that the veins proceed from the mid- 

 rib in lines nearly straight towards the margin, 

 and parallel t6 each other. In some instances the 

 costae are close together and scarcely elevated, as 

 in the Banana, Musa sapientium; but in others 

 they approach to the character of nerves, except 

 that the angle they form with the midrib is less 

 acute, 67, and they do not appear to be split off 

 from the midrib as in the multiplinerved leaf. 



61 



