36 



MR. C. BAILEY ON THE STRUCTURE ETC. 



Chatiiij in his valuable but incomplete work^ ^Anatomic 

 comparee des Vegetaux/ did not quite reacli the Naia- 

 dacese in the volume devoted to aquatic plants^ or his 

 drawings would have been useful for comparison j it is 

 much to be desired that this fine work had been completed^ 

 as well for the parasitic plants as for the aquatic. The 

 Naiadse are not yet figured by E>eichenbach in his ' Icones 

 Morse Germanicse et Helveticse/ &c. 



V. The Leaves, 

 The leaves grow in tufts at the side of each internode^ 

 and they are rather more lateral than they are represented 

 in Delile^s figure, rej)roduced two thirds the original size 

 in Plate V. fig. 3. In the living state^ as seen in the water 

 from above^ they have a light olive-green shade^ much 

 duller than that of the bright green leaves of Naias flexilis. 

 In the dried state they become much darker^ particularly 

 in the older leaves^ but the younger tufts retain the light 

 green colour of the living plant. 



Fig. 43, Fig. 44. 



In shape the leaves are linear^ broadly channelled in 



