- i6 7 - 



Symphyocladia linearis (Okam.) Falkenb. 



Norn- Jap.: Hoso-kosane-mo. 

 PL. XCVI. 



Symphyocladia linearis (Okam.) Falkenb. Rhodornelaceen p. 280 ; 

 De Toni Syll. Alg. IV, p. 990; [S] fa* H fc H | % j& p. 64. Placo- 

 phora linearis Okam. in De Toni Sopra tre nuove Alghe giapponesi 

 (1895) p. 341 ; Id. Phyc. Jap. nov. p. 33, Tav. 2, f. 17-25. 



Frond narrow-linear, ancipito-compressed or flat, decompound 

 pinnate, distichous, 10-27 cm high, lower portion becoming almost 

 cylindrical in older specimens by the gradual cortication of cells. 

 The greater portion of frond is erect, except the short decumbent ba- 

 sal portion which adheres to substratum by emitting roots from the 

 under surface. Rootfibres are emitted from any place where the plant 

 comes in contact and even from the apices of branches ; and some of 

 them form an expanded disc at their apices. Branches of every order 

 linear, alternate, erect or erecto-patent, thin and soft, furnished with 

 marginal alternate teeth, some of which grow up into ramuli. Most 

 of marginal teeth taper from broader base, terminating with an apical 

 cell ; while in somewhat broader ones the alternate arrangement of 

 rows of growing cells in a common expansion is clearly observed. 

 Tcferasporangia are produced in upper marginal laciniae disposed in a 

 single longitudinal row, and several series arranged near each other 

 in a common expansion. Procarp is produced on the basal articu- 

 lation of a fibrilla standing on the sides of upper branches near grow- 

 ing apex. Cystocarps roundish-ovate, sessile, furnished with a 

 wide terminal pore. Pericarp formed of longitudinal rows of cells 

 running from the base to carpostome. 



PL. XCVI-C, Oct. 1912. The Vol. II is complete with this number . 





