July, m*.] jc YENDO. -NOTES ON ALGAE NEW TO JAPAN. VII. 201 



Grunow, Sonder~ j and Reinbold 3j are in the opinion, that 

 S. cervicerne Grev. is to be combined with S. Binderi Sond. 

 If I have determined nry specimens right, I can not* join with 

 them on the view. Sonder's plant, according to a co-type in 

 the Trinity College, Dublin, and a specimen sent to me from 

 Major Reinbold under the specific name, has the stem straight, 

 moderately broad and complanated, with a pcrcurrent ridge in 

 the middle, and the leaflets on the ultimate ramulets are linear 

 lanccolate with coarse dentation, while in S. cervicorne Grev., 

 the stem is terete everywhere, and flexuose at each node, 

 especially in the minor branches, and the leaflets in the 

 ultimate ramulets are narrow lanceolate, markedly attenuated 

 towards both ends, and generally with entire margins. These 

 distinctions, though parti}', have also been pointed out by 

 J. Agardh. 



Locality- Goto Islands, Hizen Prov.(!); Hiuga Prov.(!). 



Distribution. India. 



Ectocarpus siliculosus Dillw. I. varians Kuckuck. 



Beispiel I. Schwank. d. I'ltiriloc. Sporang. (Her. d.d. But. Gesr 

 Bd. X, Heft 5). 



I have to report the occurrence of this forma on our 

 coast also. 



Locality. Otaru Bay(!). 

 Distribution. Helgoland. 



Acrochaetium crassipes Borgesen. 



Mar. Alg. Danish W. [ndies, p, 20, fig. 111:;. 



r.iiKi,i.si;N has given a lengthy discussion for adopting the 

 generic name Acrochaetium for the marine Chantransia. He may 



have a good reason to do so. In the present Notes, however, I 



1) Alg. Novum, p. W. 



2) Alg. Tropisch. Atntr., p, !■:. 



3) !.<-, p. 166. 



