94 THE BOTANICAL MAGAZINE. [Vol. xxxi. No. 363. 



In De Toni's Syll. Alg., I.e., we find a lengthy list of syno- 

 nymes for this species. There is a good ground to combine S. 

 minor J. Ag. and S. cordata J. Ag. into one species. But to 

 amalgamate them with 5. Duhyi J. Ag. must be rather hesi- 

 tated. The type specimens of the first two " species " have a 

 thick and cartilaginous substance which, so far as I have seen, 

 is never the case in S. Dubyi J. Ag. They are more reasonably 

 comparable with 5. undulata J. Ag. than with any other of the 

 genus. It may not be admissible, however, to deal with them 

 under one species unless there is a strong reason to do so. On 

 the other hand I have a slightest doubt in reducing S. Binderi 

 J. Ag. to a synonyme of the present species. 



This species is very common on the northern coast of the 

 Japan Sea. On the Pacific coast its occurrence remains yet in 

 doubt, although various plants apparently resembling it, but 

 different in structure, are there met with. 



Locality. Rishiri Island(!) ; Hakodate(!) ; Uzen Prov. (T. 

 Hikida.) ; Echigo Prov.(!) ; Wakasa Prov. (R. Tsuge). 



Distribution. Atlantic coast of Europe ; Mediterranean Sea; 

 California ; Yalparaizo. 



Nemastoma laciniata J. Ag. 



Epicris, p. 128.— De Toni : Syll. Alg. IV, p. 1665. 

 ? = Schizymenia stipitata J. Ag. : Epicris, p. 121. — De Toni: Syll. 

 Alg. IV, p. 1651. 



I have to report the occurrence of this little known alga 

 within our boundary, after studying the type specimen in the 

 Agardhian Herbarium. My specimens are all male, and no ac- 

 count on the cystocarps I can add to the original description. 



It is here to be noted that in the Agardhian Herbarium 

 some of the types of Schizymenia species and those of the 

 foliose forms of Nemastoma appear to me to have no marked 

 difference to separate from one another. One of the examples is 

 S. stipitata and N. laciniata. The species of Schizymenia de- 

 scribed by J. Agardh on the material from Cape of Good Hope 

 and New Zealand are undoubtedly too much multiplied. A 



