at
the southern extremes and western coast of Van Diemen's Land, which may
prove to be a Dacrydium. Callitris, of which seven species are known, and
principally found in the parallel of Port Jackson, has also been
discovered upon the North-west Coast, in about latitude 15 degrees South;
and another species, remarkable for its general robust habit, was
observed at Rottnest Island, on the West Coast. A tree, most certainly of
this family, and probably (from habit) a Podocarpus, has been seen upon
the East Coast, within the tropic, but the absence of fructification
prevented its genus being satisfactorily determined. With respect to the
extent of the order in the Islands of New Zealand, some recent specimens
gathered upon the northern, prove one of its pines to be a Podocarpus;
and another, producing a cone, and solitary, alternate scattered
elliptical leaves, shows its relation to Agathis of Salisbury, or Dammar
pine of Amboina.

URTICEAE, whose mass appears also to be confined to equinoctial
countries, may be considered very limited in those parts of Terra
Australis lying within the tropic recently explored. Ficus is the most
considerable genus of the order in that continent; and although chiefly
found on the north and north-western shores, is also traced on the East
Coast, almost to latitude 36 degrees South, where the trees attain an
enormous size. About sixteen species are preserved in the collections of
the late voyages; all small trees, and one half of which has been
gathered on the North-west Coast.

A species of Morus, bearing small white fruit, was discovered upon the
continent and islands of New South Wales within the tropic, where also a
new genus of the order, with radiated leaves, has been traced as far as
Endeavour River. Of the genus Urtica, whose numerous species can simply
be considered as of herbaceous duration, although a few of tropical
existence assume a fruticose habit, there is one plant in the vicinity of
the Colony of Port Jackson, remarkable for its gigantic, arborescent
growth; many specimens having been remarked from fifteen to twenty feet
in height, of proportional robust habit, and of highly stimulating
nature.

SANTALACEAE. Nearly three-fourths of the Australian portion of the order
described, were formerly discovered in the parallel of Port Jackson, upon
the shores of the South Coast, and in Van Diemen's Land. The genus
Choretrum, however, heretofore limited to the southern extremes of t