126 ON THE RELATIONS OF THE BRISBANE FLORA, 



Turning now to the genera, we find that out of 1300 which 

 are given by Hooker as the number for all Australia, about half 

 are found in the Brisbane flora, which is a very large proportion. 

 Between 500 and 600 of the whole Australian flora are endemic, 

 but a much smaller portion are endemic in Brisbane. The 

 proportion is about 20 per cent, while nearly half belong to genera 

 which are found all over the world. The following table will 

 show the generic character of the flora at one glance: 



Genera found in Australia 20 per cent. 



Ditto ditto in Australia and Asia, . . 24 per cent. 



Ditto ditto in Pacific 9^- per cent. 



Ditto ditto in Australia and Africa . . 9£ per cent. 



Ditto ditto in Australia and Madagascar 1 per cent. 



Ditto ditto in America 6£ per cent. 



Ditto ditto in New Zealand . . . . 5 per cent. 



Ditto widely distributed 45 per cent. 



Tropical genera . . . . . . ..16 per cent. 



Genera found generally in warm climates 9 per cent. 



These proportions must not be understood to be exclusive, that 

 is to say, some of the Indian and Australian genera may appear 

 also in the African percentage, because existing there as well. 

 By tropical genera is meant, found generally in tropical countries. 

 This per centage also appears in the genera entered above as 

 ' widely distributed,' as also in those found ' in warm climates.' 

 So in reality 25 of the 45 per cent, of genera widely distributed, 

 are the inhabitants of warm climates, such as Brisbane or else 

 the tropics . The proportion of the tropical genera does not warrant 

 us in regarding the Brisbane flora as a tropical one. 



Of the Australian genera, that is to say those most abundantly 

 represented in Australia, I make the following list, which are 

 arranged nearly in the order of their abundance : — Acacia, 

 Eucalyptus, Melaleuca, Beucopogon, Stylidium, Grevillca, JIaJcea, 

 Timelea, Goodenia, Persoonia, Pultoma, Baviesia, Olearia, Boronia, 

 Banfoia, Bryandra, Bepidospcrma, Xerotes, Bodoncsa, Brosera, 



