

33 



similar way ; so that the outline of frond, when placed in expan- 

 sion, forms a large segment of a circle. Segments broadly linear 

 cuneate, more or less expanding beneath forks, 2-3 cm broad in 

 broader, 0.510 mm in narrower portions ; they are erect or more 

 patent with narrower or wider, more or less rounded axils res- 

 pectively ; toward apices they remain either simple and ligulate, 

 or divided into lacineae, all ending in a rounded apex, being nar- 

 rower than the lower portion. Margins are entire and perfectly 

 naked in younger and sterile forms, minutely curled or crenulated 

 in fructified frond, appearing as if fimbriated with very minute 

 processes, or again, in very rare cases, furnished with a few 

 proliferous lacineae. Cystocarps are hemispherical tubercles, promi- 

 nent on one surface, being situated on both surfaces of frond, 

 crowned with mostly two short bluntish prominences. They are 

 formed in some forms, exclusively in intramarginal portions, some 

 being^ situated in marginal processes, in others on the surface of 

 frond at the same time. Tetraspores densely scattered all over 

 the frond which is either entire or curled at margin. Color blood- 

 red or rosy, fading to greenish. Substance membranous, or thin 

 and soft leathery, becoming thickish in older specimens." 



Hab. : On rocks in sublitoral region. Prov. Shima, Sagarni, 

 Boshyu, Kadzusa, Hitachi and Iwaki. 



PL. CLIX, fig. 1-5. Fig. 1; cystocarpic frond of CaLlophyllis crispata 

 Okam., \. Fig. 2 : portion of margin bearing cystocarps, i2. Fig. 3 

 portion of frond bearing cystocarps on surface, \. Fig. 4 : vertical section 

 of cystocarp, ==. -Fig. 5: cross-section of frond, 44. 



