BY THE REV. J. E. TENISON-WOODS, F.L.S. 129 



perhaps 460 species, and occurring abundantly in every country 

 in the world, this peculiarity is only seen in the two species of 

 Bedfordia, and in South-east Australia and Tasmania only. 

 Sometimes, however, genera appear in very isolated positions 

 with reference to the main body of its congeners. We have 

 instances of this in many orders, but more commonly in those 

 less highly organized, as the phrase is, though the lower 

 organization is not very evident. Such instances are not 

 numerous enough to affect the general result. 



"We come now to the estimate of the species. These may be 

 divided, first into species which are common to New South Wales 

 and Queensland. Of such the flora includes about one-third of 

 its whole number. But in this estimate some of those plants are 

 included which extend into the tropics as well, and some which 

 are not much more than on the Northern confines of the 

 neighbouring colonies. A very much smaller proportion, about 

 12^ per cent, extend into the island of Tasmania, and all of these 

 extend into the colony of Victoria as well. There are some which 

 extend into Victoria and not into Tasmania ; these form about 

 10^- per cent of the whole. A few are found in South Australia 

 and not in either Victoria or Tasmania, but the number is very 

 small, and when such instances do occur they are always found 

 on the Northern or almost tropical boundaries of the remote 

 colony and not near the coast. It must be remembered that the 

 flora of Eastern Australia is very different according to the side of 

 the dividing range on which the estimate is made. If on the 

 coast side, it is of a character more in unison with the flora of 

 Brisbane, and possesses features which are maintained to a certain 

 extent with Tasmania and Victoria, south of the great divide. 

 It is in these features that the per centage of species common to 

 the four colonies are found. The flora of the west side of the 

 divide is more or less of a desert character, especially as we 

 proceed further from the watershed. The Brisbane flora has 

 very few representatives of this part of the continent, or rather 



