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ramuli. Colour dark purplish brown, often fading to greenish. 

 Substance stiff, cartilaginous. 



Hab. On rocks and corals between tide marks and at low 

 tide. Riukiu islands, Kagoshima, Hiuga, Tosa. 



Hitherto-known : In the warmer Atlantic at North America ； 

 in the Mediterranen and Adriatic seas ； in Indian Ocean and in 

 Red Sea. - 



I have compared our plants with a specimen collected at the 

 Antillies, France, ana sent from Prof. Farlow, which is kept in 

 the herbarium of Tokyo Imperial University. 



Plate IX. Fig. i : Plant in nat. state and size. ― Fig. 2 : 

 surface-view of a ramulus, -| p . ― Fig. 3 : cross-section of a 

 ramulus, ― Fig. 4 : longitudinal section of a ramulus, ^-. 一 

 Fig. 5 : apical portion of a ramulus to show the fibrillae and the 

 growinp - apex, — Fig. 6 : terminal portion of a fertile ramulus 

 bearing tetraspores, や. 一 Fig. 7 : surface-view of the portion 

 bearing tetraspores, ― Fig. 8 : ramulus bearing two young 

 cystocarps, や. 一 Fig. 9 : ripened cystocarp, ; \ . ― Fig. 10 : 

 longitudinal section of a cystocarp, や. 



