Botany.] 
NATURAL HISTORY. 
527 
of a vein of vegetation in a large tract of country, it may be 
inquired, how far these facts might, when applied to other 
parallels, identify a certain portion of the Flora of the in- 
terior, and that of the sea-coast in the same latitude ; or, 
in other terms, how far the botany of the coast indicates the 
general feature of the vegetation to a certain limit, in the 
interior on the same parallel? Favourable opportunities 
were afforded me, to compare the vegetation of opposite 
coasts within the tropic, at the eastern and western ex- 
tremes of a particular parallel ; and the results of such 
a comparison identified many species on the two coasts. I 
have annexed a list of those plants that are common to 
the North-west and East Coasts in and about the parallel 
of 15° South, from a contemplation of which, together with 
the above remarks, and a further comparison of the species 
with those of the shores of the Gulf of Carpentaria, through 
which that degree of latitude passes, might not a general 
idea of some portion of the Flora of the expanse of in- 
termediate interior (far beyond the reach of actual inves- 
tigation) be presumed? 
A few observations relative to the geographical range of 
certain genera and species, hitherto considerably circum- 
scribed, will close this notice. 
The genus Pandanus has ever been viewed by botanists 
as equinoctial; nor was it till recently ascertained satis- 
factorily, that one of its species (P. pedunculatus, Brown) 
exists on the shores of Port Macquarrie in New South 
Wales, in latitude 31° South ; and I have been credibly 
informed, that the same plant is frequent in the vicinity of 
Port Stephens, which is at least a degree to the southward 
of the above parallel. The latitude of 32° South may be 
considered the utmost extreme of ranges from the equator 
of the genus in Terra Australis, on the opposite shore of 
