IBoTANY.] 
NATURAL HISTORY. 
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altogether in an arid soil, should have been discovered 
throughout any part of its extensive shore ; whilst, on the 
other hand, at a peculiar structure of a small and limited 
portion of that coast, in the vicinity of York Sound, a suf- 
liciency of shade was observed to be actually produced by 
the unusually broken character of the country, to favour the 
nourishment and growth of certain plants alone to be seen 
beneath the shade of dense forests. These species were 
Myristica insipida, discovered by Mr. Brown, on one of the 
Prince of Wales's group of islands on the. North Coast; 
Cryptocarya triplinervis, Brown; bearing ripe fruit, Abroma 
fastuosa ; and an undescribed Eugenia. 
Although the several genera of plants lately observed on 
the north-western shores are also frequent in other equi- 
noctial parts of the continent, there is, among the many 
species which are absolutely proper to that coast, a Cap- 
paris of such extraordinary habit, as to form a feature in 
the landscape of a limited extent of its shores, in the 
enormous bulk of its stem and general ramification, bearing 
a striking analogy to the Adansonia of the west coast of 
Africa. 
The results of such observations on the vegetation as 
could only be made m a general way, at parts approaching 
each extreme of the North-west Coast, shew their little 
affinity to each other; for the northern extremity partakes 
more fully of that feature of the line of coast contiguous to 
it, which (as already remarked) extends along the . north- 
western shores, declines materially at, and in the vicinity of 
their southern limits, where the characteristic vegetation of 
the south, and perhaps the west, coasts has more parti- 
cularly been found. Besides Eucalyptus and Acacia, which 
are abundant on every shore, and generally diffused through- 
out those parts of the interior that have been penetrated, 
