- 110 - 



become the network surrounding the nucleus of cystocarp. De Toni puts 

 this plant in Sebdenia ; but I can not agree with him. 



PI. CLXXVI. Fig. 1: Sterile frond of Halymenia dilatata Zanard.. 

 \, Fig. 2 : cross-section of frond, slightly magd. Fig. 3 : cortical layer of 

 frond, ^y 3 . Fig. 4 : tetrasporangia, ^. 



PI. CLXXVII, Fig. 3-4. Fig. 3 : auxiliary cell a (alcoholic material), 

 ^Y 3 . Fig. 4 : cystocarp (alcoholic material), --. 



Sarcodia Montagneana (H. et H.) J. Ag. 



Norn. Jap. : Atsuba-nori.. 



PL CLXXVII, Fig. 1-2; PL. CLXXVIII, Fig. 8-11. 

 Swcodia Montagneana (H. et H.) J. Ag. Sp. Alg. II, p. 623 ; Id. Epicr. 

 p. 431 ; De Toni Syll. Alg. IV, p. 414; Yendo Notes on Alg. new to 

 Jap. (Bot. Mag. Tokyo, Vol. XXXI, n. 363, 1917) p. 82. S. Ceylanica 

 Harv. ; Kg. Tab. Phyc. XIX, t. 33, f. 1 ; J. Ag. Epicr. p. 431 ; De Toni 

 Syll. Alg. IV, p. 415. 



Plants solitary or a few tufted, rising from a scutate disc with cuneate 

 base which often tapers into short, thickish stem, or almost stemless, ex- 

 panding upward into 3-4 times dichotomous or irregularly lobed fronds, 

 which are very variable in shape and size, some flabellate, others irregu- 

 larly forked, attaining 10-20 cm. in height. Segments widely parted with 

 round axils, some broadly linear, others widely cuneate, varying from 

 5-10 mm. to 4-5 cm. in breadth, with blunt, truncated, ligulate or bitid 

 apices. Margin entire, smooth or' provided in age with wart-like thicken- 



