oc.i'jio.] a'. OKAMUB A— UNDARIA AND FTS l SPECIES. 27:! 



plicated sporophylls, or formed on both sides of the midrib or 

 fascia either free from one another or becoming confluent, or 

 at the same time in continuation on both sporophylls and 

 lamina. Unilocular sporangia subclavate with linear-clavate 

 paraphyses which are crowned with mucilaginous mass at the 

 apex. 



1). Undaria pinnatifida (Harv.) Sur. Illustr. Alg. du Japon 

 p. 77, PI. VI-YII. 

 f. typica. Yexdo Devel. of Costaria, Undaria and Lami- 

 naria p. 708 (Ann. of Bot. Vol, XXV, 1911). 



= Undaria pinnati£da Sur. Illustr. Alg. du Japon p. 



77. PI. VI-YII ; Id. Alg. Jap. PI. X. 

 = Alaria pinnatifida Harv. 1 ' Char, of new Alg. ( Proc. 

 Amer. Acad. Vol. IV, 1859) p. 329. 

 Stem short, with, sinuses between adjacent pinnae compara- 

 tively shallow that is more distant from the midrib, with the 

 upper portions of large sporophylls confluent with the base of 

 the lamina. 



This form is found in the southern districts especially in 

 shallow waters. In this, the pinnate ramification of lamina is 

 sometimes entirely suppressed and from the upper margins of 

 sporophylls sterile ligules are occasionally proriferated. Sori 

 are often protruded into the basal portion of lamina in longi- 

 tudinal patches from the sporophylls. 



Loc. : Kyushyu (including Provinces Iki, Tsushima and Goto 

 Islands) excepting the southern parts ; Shikoku excepting the 

 southern parts; Honshyii or Alain Island excepting the southern 

 provinces Kii and Shima, rather less toward the north of Inu- 

 boye Zaki, coast of the Japan Sea ; rare in the western coast of 

 Hokkaido ; the eastern coast of Chosen ? 



f. distans Miyabe and Okamura, in Okamura Nippon 

 Sorui Meii p. 128. 

 = Ulopteryx pinnatifida Kjellm. in Kjellm. och Pe- 

 tersen Om Japans Laminar, p. 275, PI. XI. 



1) I have not seen the specimen collected by C. Weight at Shimoda, but judging 

 from its locality it is probably not f. distant, though Prof. Yen t do enumerates it under 

 that forma. 



