THE FUCACEiî: OF .TAPAX. 39 



Remark on the synonymy. The present speeies is readily 

 recognized by its general habit. The colour, the texture and the 

 external apjiearance of the upper portions of the sterile fronds 

 remind us of DesmarcMia aculeata as has been noted by former 

 algologists." Without seeing the fertile branches one is led to 

 place the species under the Phyllotrlcha J. Ag. not however 

 Nvithout difficulty. C. AcjArvDir^ once actually referred the ]ilnnt 

 to Sargassum. 



O'KuxTZE''^ has dwelt on the opinion that the species in 

 question should be classified under the genus Sargassum. The 

 generic conception of Sargassum given by him in his papers 

 differs widely from that of recent authors. As far as the 

 Japanese species of Sargassiim and CystophyUum are concerned, 

 I can not fully concur in the specific disposition of Kuxtze. 

 There is no doubt that he is trying to disarrange the system of 

 Sargassum after a study of fragmental herbarium specimens. 



Myagrojms Camelina KrTZ. was first described in " Botan- 

 ische Zeitung," 1843, p. 57., from a specimen collected by 

 Tilesius in Japan. J. Agardh"^ referred both it and ^Tyagrojms 

 Turneri Kutz. to his Sargassum sisymbrioides remarking that the 

 former two have been described from the upper jiortions of the 

 latter. Kutzing^^ insisted upon his opinion and illustrated the 

 so called inferior part of 3Iyagropsis Camelina, at the same time, 

 criticising sharply J. Agakdh's reference. 



I took particular care in trying to settle the problem. There 

 is no doubt that Spongocarjjus siliculosus Soxd. is identical with 



1) Cf. De Toni: Syll. Alg. III. p. lôs. 



2) C. AoAEDH : System, p. 307. 



.">) O'Kuxtze: Kevisio Gen. Plant. Ill, 2. p. 427; LI.: Revi-sio von Sargassum. p. 21'). 



4) J. Agardh : Spec. I. p. 204. 



5) Kützixg: Tab. Phyc. X. p. ?,2. Taf. 02. fi-. 1. 



