II 



% U.III |S SR. 1 : II > ?; i L. Homocsolroma lalifolium (Born.) J. Ag. (= JBJ }, ^._ 



2 = 3i. :! g -> S -3- ; ffl -t *- /h * * tt, -13 = SS - ; 4n * fj / T SR / $ Iffi Bff. 

 V4 : $ 3 H ; if * gR (360 u jy: -y), ^'.-56 : [,i] - > tS Pi ffi ^ r. SR ; at - - ^ r 

 i. 4*._7s fe^-iEiff^affi^ a.* -v =6 ^, Y 8= ^ffiS*. ^9= fg Til 

 * Vi 7. ,i- ffi ^ i Bi ffil. T- f 5 '. H : ^C i! : . ?yi) : - H /] 2 n ffi 2 ^ ;$) -10 =55-0 

 ^ /<n ^- ffi ; IS US M (J'7. * 172 !') = -y r tg. T- S ? *f 7. ,v =6 / (H jg jt). (i, 3-4, 

 fi 10 m " s jsf ji). 



Caulerpa Okamurai Weber-van Bosse. 



NoiTl! Japi ! Fnsa-iivadzuta. 



PL. CLIV, Fig. 1-8. 



Caulerpa Okawurai Weber-v. Bos. in Okam. Alg. fr. Ogasawara-jima 

 (Rot Mag. Tokyo, Vol. XI, No. 119), p. 5, PI. I, f. 13-14; Weber-v. Bos. 

 Monogr. Caul. p. 385, PI. XXXIV, fig. 9; Okam. Alg. Jap. Exsic. Fasc. 

 I, no. 48. 



" Fronds arise from surculus, often two near together, and 

 are cylindrical, being simple, or branching irregularly once or 

 twice. They attain a height of 4-17 cm., being as thick as the 

 surculus and are clothed throughout their whole length with more 

 or less densely imbricated ramenta. Ramenta are apparently 

 imbricated in densely clothed fronds, while in loosely inserted ones 

 they appear as if distichous and opposite. The latter disposition 

 of ramenta is more generally the case in those standing near the 

 base of frond, where ramenta are as a rule loosely inserted ; they 

 are gradually imbricated and become closer as they proceed up- 

 ward. Rachis is slightly constricted at the insertion of ramenta 

 and somewhat bulges out laterally beneath the constriction, giving 

 rise to a short pedicel on which a ramentum is situated. The 

 junction of a ramentum and a pedicel is more distinctly constricted 



