41 



Eucheuma spinosum (L.) J. Ag. 



Norn. Jap.: Kirinsai. 

 PL. LXI; PL. LXII, Fig. 4-6. 



EncJieuma spinosum (L.) J. Ag. Sp. Alg. II, p. 626; Id. Epicr. p. 

 60 1 ; Id. Anal. Algol. 1892, p. 122; Heydrich Beitr. Algenfl. v. 

 Ost-Asien p. 293; De Toni Phyc. Jap. nov. p. 27; Id. Syll. Alg. IV, 

 p. 369; Sender Alg. d. trop. Austr. p. 60; Asken. Forschungsr. 

 "Gazelle" Bot. p. 46; Okam. Alg. Jap. Exsic. Ease. II. n. 59 (POtt. 

 H#i&&Siat&lH*. n. 59); ffl ft, B # & m % m p. 34- Fucus 

 spinosus L. Mantissa p. 313; Turn. Fuci t. 18. Sphaerococcus 

 spinosus Ag.; Kuetz. Sp. Alg. p. 777. Fucns muricatus Gmel. Hist. 

 Fuc. p. Ill, t. 6, f. 4. Gigartina spinosa Kuetz. Tab. Phyc. XVIII, t. 



7. Gigartina isiformis Kuetz. Tab. Phyc. XVIII, t. 7 ? 

 Hab. : Riukiu, Taiwan. 



PL. LXI. Fig. 1: sterile frond of Eucheuma spinosum (L.) J. 

 Ag. wit h holdfasts, r, r, \. Fig. 2 : longitudinal section of frond, 3 f 

 Fig. 3.' cross-section of frond, 3 1 3 . Fig. 4: portion of a cross- 

 section of frond, ~. Fig. 5 : portion of a cross-section of the branch 

 bearing cystocarps, }. 



PL. LXII, Fig. 4-6. Fig. 4 : cystocarps, f. Fig. 5 : vertical 

 section of a cystocarp, Y- F'g- 6: portion of the nucleus with sterile 

 filaments connecting the inner wall of pericarp ; with the central cell, 



390 

 1 



PL. LXI LXV, Oct., 1909. 



