THE FUCACE.*: Ol' JAl'AX. 59 



suggested: otherwise, we can liai-dly imagine any aflTinity between 

 the two. He/^ however, remarked that if a complete specimen 

 of Sarffassian Ilenslow'ianum var. j^innatlfolium J. Ag. had been 

 examined, his variety might be found to belong to the Dimorphce : 

 and he"^ entirely disregarded that variety in his later work. 



SuRiXGAE. mentions Sargassum piluliferuvi f. capillaris Suk. 

 in Algce Japonicas p. 25. as being distinguished from the type 

 by having " foliis superioribus capillaribus enerviis." But as 

 above stated, the uj^per leaves in the adults of the j)i'esent and 

 of the next species, generally lack the midrib and this character 

 is never formal. 



Fucus mici'oceratius Turn, it w^ould seem had better be amal- 

 gamated with the present species. The only difficulty in doing 

 so is that the figure illustrated in Hist. Fuc, 1. c, has the 

 vesicles mucronated or apiculated. But Turner in describing 

 the species says that the vesicles are spherical and externally 

 smooth. In Tab. Phyc, 1. c, Kijtzixg delineates all the vesicles 

 with round apices. These facts strengthen my belief that Turner's 

 species and its derivatives should be placed in a position synonymous 

 with the present species. 



It is to be noted here that a sterile, non-vesiculiferous form 

 of Oystophyllum Turnerl is often difficult to distinguish from a 

 similar form of this species. 



Localities: Nagasaki (h. sc. coll.); ChikuzenProv. (M. Yano) (!); 

 Tsushima Prov. (ii.s.a.); Nagato Prov. (!); Osumi Prov. (h.s.a.); 

 Tosa Prov. (H. Yamamoto) (!) ; Sanuki Prov. (!); Kii Prov. 

 (U.S.A.); Shima Prov. (!); ]\Iikawa Prov. (!); Sagami Prov. (!); 



1) Spec. Alg. I. p. 290; Sarg. Austr. p. 12-_'. 



2) Anal. Alg., Cont. III. p. 49 ct seq. 



