
(TOT) 


the cortex. Tetraspores dispersed over the frond, mostly in upper segments. Color deep purplish red, 
varying through verious degrees of brownish and pale greenish to yellowish. Substance cartilaginous. 
The plant does not adhere to paper in drying. Fruits in August. ri 
Hab. On rocks near high water mark. Hakodate, Rikuchu, Matsushima. 
Gigartina affinis Harv. Char. of New Alg. from Japan. no. 31. 
I have seen a sterile specimen of this plant collected at Hakodate by C. Wright and named Gigartina 
affinis. Prof. Harvey’s G. affinis is no doubt the same species as my plant. It seems to me that he placed 
this plant in the Genus Gigartina and gave the specific name nas for its resemblance to G. sammzllaria ; 
but the character of the cystocarp and the structure of the frond of this species are those of Graéeloupia 
and not of Gzgartina. 
Pl. V. Fig. III—V. Various forms of frond (nat. size). 一 III. IV. Portion of frond.—V. Whole frond. 
Var. lata Okamura. nom. jap. Kome-norl. コメ フリ. 
Frond compressed, 3-12 cm. high, repeatedly dichotomous. Segments broadly linear or cuneate toward | 
the forkes, somewhat canaliculate, 2-7 rm. broad. Lacineee linear-subulate or cuneate, roundish or emar- 
ginate at the apex. Proliferations from the margin and surface. Cystecarps collected in upper lacinez. 
Tetraspores dispersed over the frond, mostly in upper segments. Fruit in Summer. 
Contributions to the Phycology ‘of Japan. 
