92 ART. 12. — K. YENDO. 



Halochloa 'pachycar'pa KÜTZ. has been established undoubtedly 

 on a basal portion of a local form of Sargassum tortile. The plant 

 is characterized by the enormous dilatation at the residual por- 

 tions of the fallen basal leaves. I illustrate a plant which agrees 

 very well with Kützing's figure, from a sheltered cove at Hama- 

 jima in the Province of Shima. The upper portions of this 

 aberrant form, however, satisfactorily prove it to belong to the 

 present species. (PI. XI. fig. 4). 



Halochloa 'polyacantha I refer to /. macrocarpa, though I do 

 so with hesitation. The much divided lacinise uf the pinnatisected 

 leaves, as delineated b}^ Kützing, 1. c, were not verified in our 

 collections. 



Localities: Nagasaki (Tilesius, Agardh), (Hokner, Turner), 

 Hizen Prov. (!) ; Chikuzen Prov. (M. Yano) (!) ; Tsushima Prov. 

 (h. s. a.) ; Fusan, Korea (h. sc. coll.) ; Nagato Prov. (h. sc. coll.) ; 

 Izumo Prov. (!); Tango Prov. (!); Hakodate (h.h.f.), Esashi 

 (h.h.f.), Oshima Prov. (!); Ugo Prov. (!); Shimösa Prov. (!); 

 Sagami Prov. (!); Shima Prov. (!); Kii Prov. (h. sc. coll.) ; Awa 

 Prov. (h.s.a.); Sanuki Prov. (!); Aki Prov. (!); Satsuma Prov. 



(H.S.A.). 



/. macrocarpa: Sagami Prov. (h.s.a.); Kii Prov. (h.s.a.); 

 Tsushima Prov. (h.s.a.); Tango Prov. (!); Noto Prov. (!); Sado 

 Prov. (!). 



Sargassum fulvellmn Ag. 



Plate XIII. Fig. 18-20. 



Spec. p. 34— M: System, p. 306.— J. Ag.: Spec. Alg. I. p. 293 (excl. 

 sijn.). — Id.: Spec. Sarg. Austr. p. 61. — Id.: Anal. Alg. Cont. III. p. 55. 

 -De Toni: Syll. Alg. III. p. 25. 



= Fucus fiduellus Turn.: Hist. Fuc. Vol.' I. p, 148. Tab. 66. 



= Spongocarpus fulvellus Kütz.: Spec. p. 633. — Id.: Tab. Phyc. X. Taf. 90. 



