Lemaneacece 



41 



of the thallus, of a cartilaginous consistency, and hang freely in 

 the rapid torrent. They are of an olive-green or greenish-Mirk 

 colour and grow to a length of 15 18 cms. At short, inoiv or 



/ 



Fig. 3. A, Saclu'i-in mamillosa Sirodot (nat. size), from E. Wharfe, W. Yorks. 

 B, portion slightly magnified showing antheridial areas. C, Lcmmifn tnnilomi 

 Kiitz. (nat. size). D, portion slightly magnified showing antheridial areas. 

 E, Suclierin fucina (Bory) Sirodot, longitudinal section of fructiferous filament 

 showing female organ ; t, trichogyne. F, Lcinnin'ii cuicnata Kiitz., transverse 

 section of fructiferous filaments showing antheridia; a, antheridial cell; 

 , spermatium. (D, E, and F after Sirodot.) 



less regular intervals along their whole length are distinct swell- 

 ings or nodes, and each nodulose thread is built up of an axial 



