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frond which is furnished with obovato-linear, ― " unverzweigte 

 or very slightly branched, but not pinnately compound, — fertile 

 pinnae, proliferating mostly from . margins as well as from the- 

 midrib. Stihria japonica has more narrowly linear and pinnately 

 divided frond having decom^osito-pimtate, linear ramuli which are 

 proliferated both from margins and surfaces. Plants having such 

 different habit, I want to say, should not be kept in one and the 

 same wms. 



As to Schmitz's view for classing Stthria japoitica in the 

 genus Poi'-phyroglosmm I am quite far from agreeing with him. 

 Porphy 'to g losszcm 厶 ollingeri Kuetz ？、 has an ecostated, simple or 

 sparingly branched and undulated frond, from whose surfaces, 

 either median or otherwise, ― and not from margin (？) ― very numer- 

 ous, foliaceous r siniple, minute and linear pinnulae are proliferated. 

 The mode of ramification of Stthria Japo?iica } as it is shown in 

 proliferating pinnse, can be said to be nothing but pinnate, though 

 in some forms very few ordinary branches are present. The plant 

 in question has miclribbed frond and is furnished with pinnate 

 proliferations, arising from both surfaces and margins. 



Now, since my discovery of u-eliditcm sub co datum Okam. 3 ) 

 which has midnobed frond, Schmitz has studied the . plants which 

 were considered to be related to u-elidzacecB up to that time and 

 has brought some important changes to the classification of 

 Gelidiacece in general ； and consequently, the diagnosis of Gelidium 

 has. suffered variations in, certain points. And thus, the presence 

 of midrib in an allied, alga gives no objection for placing it in that 

 genus. Gelidium pristoides (Turn.) Kuetz., again, with which the 



1) Schmitz I.e., p. 6. - - 



2) As to Porphyroglossvm Zollingen Kuetz., I am sorry to say, I have no specimen to 

 .examine and I have to study it only from the illustrations given in Kuetzing's Tab. Phyc. 

 Yol. XI Xj t. 45 and descriptions given in literature. 



--- 3) Schmitz I.e., p. 1-2, Taf.»X. 



