THE FUOACE/E OF JAPAN. 129 



or with a short lignle wliicli often runs downwards for a short 

 distance forniini;- a narrow wing-like appendage. They are usually 

 found solitary on the basal portion of a lateral branch but not 

 infrequently at the base of a minor fertile ramulet. 



Keceptacles are spathulate or subcuneate, complanated, with 

 ancipitous margin, and with a few dentations at the apex. They 

 are, as in the preceding species, mostly solitary at each axil 

 formed by a leaf and the stem of a lateral branch, but often 

 2-3 or more of them are racemously disposed on an extremely 

 short ramulet. 



Remark on the affinity. The present species has very well 

 marked characters and no other sjiecies hitherto known to us 

 seems to be closely related to it. The receptacles, however, suggest 

 that this species should be placed near Sargassum micracanthum. 



Localities: Misaki, Sagami Prov. (!); Izu Prov. (!); Iwami 

 Prov. (!). 



EUSARGASSUM J. Ac. 



Trihe 1. CARPOPHYLL^ J. Ag. 

 Sargassum graminifollum Ag. 

 Plate XVI. Fig. 4. 



Spec. p. l^.—Icl: System, p. 209.— J. Ag.; Spec. I. p. 303.— /d: Spec. 

 Sarg. Austr. p. 81.— KÜTZ.: Spec. p. 615.— /fZ.: Tab. Phyc. XI. Taf. 

 28. fig. 1.— De Toni: Syll. Alg. III. p. 38. 



=Fueus graminifoliiis Turn.: Hist. Fuc. Vol. IV. p. 32. Tab, 210. 



= Sargassum VachcUianum Grev.: Alg. Orient, p. 204. Tab. IV. 



Remark on the determination. We have several specimens 

 which accord with the descriptions and figures of the above named 

 species as given by various writers. In our specimens, the stems 

 on the upjier portions of fronds are compressed and ancipitous, 



