- ,8 5 - 



Acetabularia minutissima Okam. 



l> tt * 3 0) b [ 



5 mm g ^ r ^ ^ g {$ ^ 7 ^ 7" 4 mm = jg i/, ^ 



/ afe ^ ? jSA'. S^^ffift^B^-a^ -> r HI 



v,i&&s m?(a.n82i*) ? m*- 



iU : ^ ^ A - / flC (3 ^) ; IP] (t>^ #> h$ ? _b * * 7 jt 



^ in ^ St /h fc i- r * 1&& s &ni~ ^ b 3 ^ ^* ff li v t 



(? C g) )K. 7 : ^ T fr 3 0) () , Acetabularia minutissima Okam 

 H ( ' tC ^), -f 8 : B fa / * y (IK ^ -fe T* A- =e ^ ), -^.9 



^ tC / * ^ (ffi:^ -t ^ V * ;), ^.10 : m& ? M ^ v 

 * (- ' it jS); ^ * m * ffi ft ^ 800 / r ? , M. 11 : jjg 



82 ft) 1X5. 



Acetabularia CalyCUluS Quay et Gaimard. 

 Nom Jap : Hoso-e-gasa. 

 PL. C, Fig. 12-13. 



Acetabularia Calyculits Quay et Gaimard in Freycinet Voy. Zoo!, 

 tab. 90, f. 6-7; Kuetz. Sp. Alg. p. 510 ; Harv. Phyc. Austr.t. CCXLIX; 

 J. Ag. Till Alg. Syst. VIII, p. 171 ; de Toni Syll. Alg. I, p. 418. 



Minute, thinly incrusted. Fronds tufted with slender stem (2-3 

 cm. long). Discs campanulate or cup-shaped (2-3 mm in diam.), very 

 concave, formed of linear cuneate utriculi (20-28 in number) which 

 have obtuse apices. 



