8 

 r * ' * %\ *. & jf ^ * m- & " fa fi- S - ? 



t ^ jjJJ. II t J . 



ill! : i& BH ' -^ JS ' $ JSf * *E ^ r 1tH y & m MS 



CII i] J|g. 3-4 |U. 3 : Plocamium recurvatum Okam. n. sp. S fg/ 

 f- 



5, }--4 : U y - 



Spyridia filamentosa (Wulf.) Harv. 



Nom. Jap, : Ubuge-gusa. 







PL CII, Fig. 5-14. 



Spyridia filamentosa (Wulf.) Harv. z Hook. Br. Fl. II, p. 336, 

 Harv. Phyc. Brit. t. 46, J. Ag. Sp. II, p. 340, Id. Epicr. p. 268, Id. 

 Florid. Morphol. t. XVI, f. 11-17, Kuetz. Tab. Phyc. Vol. XII, t. 

 ^2, f. a-b., Farlow Mar. Alg. New Engl. p. 140, t. X, f. i, t. XII, f. 2, 

 Arrliss. Phyc. Mo.lit. I, p. 193, Hauck Meeresalg. p. 115, f. 40- 

 41, De Toni.Syll. Alg. IV. p. 1427. Fucus filamentosus ]Vnlf. Ci-yp. 

 Agitaf. p. 6j. Plypnea cJiar aides Lamour. Essai t. 4, f. i. Several 

 species enumerated in Kg. Tab. Phyc. XII, t. 43-44 and 46-49. 



Our plants attain the height of 10-20 cm., with the thickness 

 of ca. i mm. in thicker portion gradually tapering upwards. Col mr 

 whitish flesh-red. (The colour printed in the plate CII does no 

 denote the natural colour of the original plant.) 



Hab. : On rocks between tide-marks, often near high tide. 

 Common along the coasts of the Pacific and Japan Sea in warmer 

 parts of the country. Pratas Isl. (Formosa), Ryukyu, Amakusa-Isl., 

 Kobe, Morozaki (Prov. Mikawa), Boshyu, Hakodate, Provs. hvami. 

 Idzumo, Tango, Wakasa, and Noto ; Kaifu (Prov. Yechigo). 



PL. CII, Fig. 5-14. Fig. 5: sterile frond of Spyridia fi.lam-i 

 tosa from Ryukyu, }. Fig. 6 : portion of a branch, 4 1 ? . Fig. 7 : 



