PRESIDENT S ADDRESS. V 



A\gx. And I think, at this stage, that the most useful publica- 

 tion I can make is a classified list of the known forms of ouv 

 algal flora, as far as concerns the groups of Brown and Red Sea- 

 weeds. Ill 1863, Harvey published liis Synopsis, enumerating 

 719 species. In 1880, Sonder, in Mueller's Fragmenta (Vol.xi.) 

 gave an increased list of 923 forms. I have reckoned in both 

 lists only the species of Fucoidect and Floridece. Since the latter 

 date, several collections of Australian species have been referred 

 to experts in Kurope, and new species have been described by J. 

 G. Agardh, Reinbold and others. Agardh has especially pro- 

 duced order out of chaos amongst the very numerous forms of 

 Sargassum in a classical Monograph. Regrouping and rearrange- 

 ment have resulted from the work of Schmitz and Falkenberg. 

 Finally De Toni has produced his magnificent Sylloge Algarum, 

 and incorporated in it most of the additions and re-casting. The 

 names now accepted are in many cases altered from those used 

 by Harvey in his Phycologia Australica, which is the only work 

 generally available to Australian students. In the appended 

 List, then, I have given the species as recorded in De Toni, 

 following his classification as far as published, adding species 

 since described, and giving, as far as I am able, the general 

 geographical distribution of the species. The coasts onl}^, N., S., 

 E., W., are indicated, since details are wanting for anything lilie 

 a precise extent of the range of most of the forms. The List 

 includes about 1050 species. Harvey's names, where altered, are 

 given as S3monyms. 



REVISED LIST OF THE FUCOIDE.E AND FLOlUDEJi 

 OF AUSTRALIA. 



FUC01DE^(Ag.)J.Ag. 



Order CYCLOSPORINS Aresch. 



Family SARGASSACEoE (Deciie.) Kuelz. 



Sargassum Ag. 



Subgen. Phyllotricha (Aresch.) J.A;<. 



8. heteroiiiorphwni J.Ag. S., T. 



S. halitr i chum {Ave&ch.) J.Ag. W., S. 



