July, mc] YKXDO.— NOTES ON ALQJE NEW TO JAPAN, V. 263 



he claimed a new generic position for the sin<;lc species. Rc- 

 jjcated observations for several years on our plant in vivo, I 

 I'ound the terasporan<^ia in the ordinary manner of Callitham- 

 nion, i. c, sij^lc, sessile on the upper side of a lower cell of 

 pinniilct (often two on the lowermost cell, but one ripeninj^ 

 earlier than the other). Excepting this point, our plant exactly 

 coincides with the species. 



Localit3\ Hakodate, ej)iphytic_on larger algae (!) ; Oshoro, 

 on algae and mussels (!); Shiokubi near Hakodate (S. Nakita, 



Distribution. New Holland. 



Prionitis australis J. Ac ? 



Spec. Alg., II, p. 18S.— Id. : Epicris, ]). 15<S.— De Toxr : Syll. Alj?., 

 lY, p. 1588. 



= Chondrus sp. Yendo : Text Book of Mar. Bot., j). 599, fig. 168 

 (in Japanese). 



I identify oxir specimens wnth above mentioned species, after 

 consulting its type specimen at Lund. None of ours, however, 

 has fructification or the marginal ligules. Hence, with doubt. 



Locality. Idzu Prov. (!); Sagami Prov. (!); Shima Prov. 

 (Herb. Imper. Mus., No. 144). 



Distribution. New^ Zealand. 



Sapporo, 1, Ma\', 191G. 



