Fig. 29 Enteromorpha intestinalis f. flagelliformis. a, portion of 

 plant, b, origin of branch of same showing basal constriction. 

 Cj dj e, transverse sections from near base, middle and apex of 

 thallus. 0= outside, z= inside of tube, f, g, cells of thallus. 



(Original.) 



57 



