128 MARINE ANGIOSPERMS 



FIG. 85. Zoster a marina, L. T.S. leaf at base of limb between the median nerve 

 and a lateral nerve, phloem indicated by shading. [Sauvageau, C. (1891').] 



FIG. 86. Zostera marina, L. T.S. median bundle of leaf; t, sieve tubes, (x 220.) 

 [Sauvageau, C. 



