72 THE BOTANICAL MAGAZINE. IToi. xxxn. No. 376. 



Dasya collabens H. et H. 



Alg. Nov. Zel., No. 52, in London Jonrn. of Bot., IV, p. 535.— 

 De Toni : Syll. Alg. IV, p. 1208.—? Grun.: Alg. Novara, p. 91. 

 = Eupogomum collabens Kutz.: Spec. Alg., p. 798. 

 (For other references, See: De Toni, I.e.). 



I identify several specimens of Dasya from the Japan Sea 

 coast with the present species, after comparing them its authen- 

 tic specimens. On the specimen sheet of the co-tj^pe from the 

 Banks Peninsula, New Zealand, kept in the Agardhian Herba- 

 rium, there is found Harvey's handwriting which reads : — " The 

 figure in Ner. Austr. shows only a scrap of a young and im- 

 perfect frond." With this, cotype some of our specimens agree 

 especially well. 



Our specimens may be at the same time referred to D. elon- 

 gata with a little excuse. The same thing has already been ex- 

 perienced by Grunow. 15 The present species, however, has the 

 ramelli much denser and softer ; the branchlets are not like 

 " fox-tail " and not " ocellated ". 



The stichidia are found in our specimens at lower parts of 

 the ramelli, each taking a position of a ramellum. They are 

 elongated conical with one or two short pedicells. Very frequently 

 I saw the stichidia with some pericentral cells around the pedi- 

 cells, as to exhibit the character of Eupogoniutn Kutz. 



Dasya collabens H. et H. has been reported by Cotton 25 

 from Corea. His specimens, however, differ from the original in 

 several points and Cotton himself has verbally admitted the 

 determination as erroneous. 



Locality. Echigo Prov. (R. Kobayashi, No. 57). 



Distribution. New Zealand ; Australia. 



Dasya punicea Meneg. 



in Zanard.: Syn. 66— De Toni : Syll. Alg. IV, p. 1188. 



(For Synonymes and other references, see: De Tom, I.e.). 



1) Gkunow : Algae Novara, p. 91. 



2) Cotton : Mar. Algae from Corea, in Kew Bull. 1906, p. 370. 



