(rept., t9t4.j YENDO.— NOTES ON ALGJE NEW TO JAPAN. IT. 275 



various parts of Australia. Close examination on the speci- 

 mens in the Trinity College, Dublin, proves some of them iden- 

 tically equal with Solieria australis Hary. and some others 

 with Rhabdonia Coulteri Harv. Most of the Long Island 

 specimens are applicable to Rhabdonia tenera J. Ag, and a few 

 from the Australian seas are hardly separable from the origi- 

 nals of Rhabdonia coccinea Hary. The specimens from Mont- 

 erey, California, collected by Coulter, mentioned in Ner. Bor. 

 Amer. 11, p. 154, belong also undoubtedly to Sol. Australis 

 Harv. 



A specimen from Green Port, kept in the Herbarium of the 

 Trinity College, Dublin, under Sol. chordalis Hary., agrees very 

 well with Sol. australis in having the segments always robust 

 and not tapering upwards gradually. Similar forms are distri- 

 buted in Phyc. Bor. Amer. under Rhabdonia tenera J. Ag. (Xo. 

 138) and Agardhiella tenera Schmitz (No. 1396) in the copies 

 I have seen. These specimens from the Atlantic side of the 

 United States are so closely resembling with the originals of 

 Sol. australis Harv. that I do not hesitate to refer them to 

 that species. But, judging from the note on the label for 

 Agardhiella tenera Schmitz distributed as No. 539 Phyc. Bor. 

 Amer., the American botanists seem to have regarded them as 

 cystocarpic form of what Haryfa" takes as Sol. chordalis in 

 the Long Island specimens. It should be highly interesting to 

 observe such morphological variation according to the fructi- 

 fications and it is hoped that the American botanists will 

 extend their study to give a fuller account on it. 



Setchell and Gardner combined Agardhiella Coulteri 

 Setch. and Ag. tenera Schmitz into one species announcing 

 no specific difference between the Atlantic and the Pacific forms. 

 But the West Indies form of Rhabdonia tenera J. Ag., i.e., the 

 form from the type locality, must have been carefully studied 

 before to come to their conclusion. The specimens of i?i2. tenera 

 J. Ag. in the Agardhian Herbarium appear to me not uniform 

 in their important specific characters. The specimens from 

 New York, Green Port and Sulivan Island, all determined by 

 Harvey as Sol. chordalis, are identified to Rh. tenera by J . 



