i8S 



branch, ". Fig. 12: portion of fig. 11, to show congenital growth 

 of ramuli, &p. Fig. 13 : tetrasporic laciniae, S. 



Trichogloea lubrica (Harv.) J. Ag. 



NoiP- Japi : Akebonomozuku. 

 PL. CXCVII, Fig. 1-8. 



Trichogloea lubrica (Harv.) J. Ag. Epicr. p. 514; Id. Till 

 Alg. Syst. XI, p. 41 ; De Toni Syll. Alg. IV, p. 77. Helminthocla- 

 dia Cassd Crouan in Maze and Schramm Alg. Guadel. p. 177. 



Root a small soft disc. Frond mostly simple, filiform or 

 cylindrical, weak, tapering at base, pinnately branched decompound, 

 in irregularly alternate manner. Main stem mostly simple or 

 parted, closely set throught its whole length with patent branches 

 equally thick as stem, scarcely 1.5 mm. in thickness with 

 thinnly encrustatecl axis whose diameter is much less than the 

 thickness of peripheral layer. Branches worm-like, usually not 

 attenuated at base, tapering to a slender apex, loaded with lateral 

 simple or forked patent branchlets with longer or shorter ones 

 mixed. Cystocarps dot-like, situated in the peripheral layer and 

 consist of a globular mass of spores. Colour beautitul red soon 

 fading in freshwater. Substance soft, gelatinoso-mucose, lubricous 

 and the plant closely adheres to paper in drying. 



Hab. : on rocks between tide-marks near low tide. Ryukyu 

 (Harv.), Nomo-zaki, Hachijo-Shima. 



PI. CXCVII, fig. i-8. Fig. 1 : frond of Trichogloea hibrica 

 (Harv.) J. Ag. from Hachijo, -J-. Fig. 2 : optic longitudinal sec- 

 tion of frond, ^. Fig. 3 : portion of the longitudinal section of 

 frond, ^. Fig. 4: cystocarp and peripheral filament, ^f 3 . Fig. 



