uctification, their identity could not be satisfactorily
determined.
Viewing the general distribution of Banksiae, it is a singular fact in
the geographical history of this genus, that its species, which have been
traced through almost every meridian of the South Coast, upon the islands
in Bass Strait, in Van Diemen's Land, and widely scattered throughout the
whole extent of New South Wales to the North Coast, at which extreme of
the continent, B. dentata has been observed as far west as longitude 130
degrees East, should be wholly wanting on the line of North-west Coast.
Why the links of this almost perfect chain should have been broken on the
seashores appears unaccountable, since they are, by reason of their
general sterility and exposure, extremely favourable to the growth of the
greater portion of the order. Our limited knowledge of the West Coast
(properly so called) does not afford us materials to hazard even a
partial conclusion, relative to the existence of this family on its
shores, excepting from the total absence of any one plant of Proteaceae
at those parts of Rottnest and Dirk Hartog's Islands visited during the
Bathurst's voyage; an inference may be drawn of the general paucity of
any part of the order on the shores of the neighbouring main. Although no
species have been found common to shores opposite to each other, in the
higher latitudes, the identity of Grevillea mimosoides, Persoonia
falcata, and Hakea arborescens, has been established upon the East Coast,
and the north-western shores, in the parallel of about 15 degrees South:
but whilst this geographical diffusion has been remarked in reference to
those particular species, the range of Grevillea gibbosa, a plant
discovered at Endeavour River by Sir Joseph Banks, is now tolerably well
defined by observations made during the late voyages, from which it
appears to be circumscribed to an area not exceeding one hundred and
twenty miles on the East Coast. In the course of the progress of the land
expedition above referred to, the discovery of another plant of this
natural order by Mr. Fraser, occurred in New South Wales, in a tract of
country west of the coastline, about the parallel of 31 degrees, where I
am informed it is a timber-tree of very large dimensions; and seemingly
it constitutes a new genus, nearly allied to Knightia of Mr. Brown, a
native of New Zealand, as I judged from a casual view of some specimens.
LABIATAE and VERBENACEAE. The mass
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