node neither constricted nor prominent. The cortical cells consist 

 of two layers ; the inner, of larger roundish cells, while the outer, 

 of a few layers of smaller cells. Color blood-red or purplish red. 

 Substance rather thick, soft cartilaginous and tough. 



Hab. : On the frond of several algae growing between tide- 

 marks ; Provs. Shima, Totomi, Izumo, Noto, Otaru. 



PL. CXXIV, fig. 14-22. Fig. 14 : smaller form of tetrasporic 

 frond of Cerainium japonicum Okam., 1 / 1 . Fig. 15 : cystocarpic 

 frond, \. Fig. 16: portion of the cross-section of frond; c, centra! 

 cell, ^-. Fig. 17: surface-view of a tetrasporic ramulus, ^ Fig. 

 18 : longitudinal section of a tetrasporic ramulus, ^ ? . Fig. 19 . 

 portion of the cross-section of a tetrasporic ramulus ; c, central 

 cell, 2o. Fjg. 20 : tetrasporangia, ^f 3 . Fig. 21 : ranuili bearing 

 cystocarps, J. Fig. 22 : cystocarps, - 1 1 9 -. 



Ceramium japonicum Okam.* 



ii ti ^ y -t. is9 *t m- 



^ cxxiv IHJJ&, 14-22 13. 

 &,&%< * f ft We y, * $ra 159 M * ^ /h * * ffl 



1- * sa - fife ^ wi * 1- rt&m. ^mm-y.^^-y, 



JR.^^JSWiKBjm ? K ? 'rfft- ",%1$m? * 7 *fc ? 



| ^ 6-1 1 cm / & ? 7 ~fi ,1$ T /* * / ->* 2.5-5 cm 



4>*JBi}W* v ^, * ffi * ffi ?* H B8 -v.ffi fj JK ? 

 - S' t * ' * y ~ *,ii rjg 



* Ceraminm Cv' ^ "T 1) ^ 14 K " B * tf j$ li gft, B ^ t )S ^ 1* T - T ') . 



