95 







below to a short cylindrical stem, with a little or widely patent, more or 

 less acute axils. Branches slightly attenuated bjlow, compressed, not 

 evenly flat bu' transversely wrinkled in short distances making slightly 

 wavy elevations like ridges, which are sometimes somewhat reticulated ; 

 not constricted anywhere, and thickened on both margins, 3-10 mm. broad; 

 axial filaments not visible ; apox bifid. Epidermis consists of a layer of 

 large, colourless cells which are rectangular-oblong, 27-30 by 40-46 // with 

 tops slightly arched ; hypodermal layer consists of rather loosely packed 

 coloured globular cells. Cyst-jCiu-fis scattered, with some tendency toward 

 ihtramarginal aggregation, depresso-globular, immersed in the frond, 

 sligblly prominent with an opening above; neucleus surrounded by the 

 tissue of parenchymatic cells which are in connection with inner filaments 

 of frond; spore-filaments densely packed whose terminal articulations 

 mature to spores. Colour beautiful purplish-red. Substance succulent, 

 membranaceous when dried and firmly adheres to paper in drying. 

 Hab. : In deeper waters. Sa;!ami. Boshyu, Enoura (Saida) 

 The transverse wrinkles are very peculiar to the present plant which 

 most probably should have escaped keen eyes of Cotton and Setchell as 

 they become often hardly visible in preparing for herbarium-specimens. Sc. 

 latifrons Howe (Phyc. Stud, V, Some Mar. Alg. of Low. Calif. Mexico, 

 1911, p. 500, Text-fig. 1, pi, 23) I think, most probably should be the 

 same as the present plant ; for, transverse wrinkles are visible in Ins 

 illustrations (I.e. p. 501 text-fig. 1 and better, PI. 28). They should not 

 be mere wrinkles resulting from the process of drying, but elevated ridges 

 in fresh state as the surface of frond in our herbarium-specimens shows 

 the similar appearence as it is r.cen in his illustrations. Cotton (Kew 

 Bull., no. 7, p. 260, 1907) ideniili-.-s the present plan! with his Sc. com- 

 which he raised to the specific rank from a form of Sc. furcellatu 

 1) This specimen I have seen through the kindness of Mr. Narita. 



