The existence of several plants of this extensive family in the intratropical parts of Terra Australis especially when aided by some individuals of almost wholly exotic tribes, that form a prominent feature in the Flora of other equinoctial countries, tend, in some measure, to diminish the peculiar character of the vegetation of Terra Australis on those shores, and thus it is a considerable assimilation to the Flora of a part of a neighbouring continent that has been traced.

About thirty species are preserved in the collections of these voyages, for the most part belonging to genera existing in India, but more abundant in the tropical parts of South America.
Of these, Gardenia, Guettarda, Cephaelis, Coffea, Psychotria, and Morinda, are found on the East Coast; whilst, in corresponding parallels on the opposite, or north-western shores, the order, although not materially reduced, is limited to the two latter genera, with Rondeletia, Ixora, and Genipa.
It is worthy of remark, that the range of Psychotria, which has not been observed beyond the tropics in other countries, extends in New South Wales as far south as the latitude of 35 degrees; at the western extremity of which it does not appear to exist.
CAPRIFOLIAE, Juss.

The situation of Loranthus and Visvum, in the system, appears to be undetermined by authors.

M.Jussieu associated them with Rhizophora, in the second section of this order, from which Mr.Brown has separated this latter genus, and with two others found in Terra Australis, has constructed a distinct family, named Rhizophoreae; suggesting, at the same time, the analogy of Loranthus and Viscum to Santalaceae, and particularly to Proteaceae.

The genus Loranthus, of which nearly the whole of its described species have been limited to the tropics, is, however, sparingly scattered on all the Coasts of Australia, where about eleven species have been recently observed, parasitical chiefly upon certain trees that constitute the mass of the forests of that vast continent; namely, Eucalyptus, Casuarina, Acacia, and Melaleuca.
A solitary and very remarkable deviation from the usual natural economy of Loranthus, is observed in a species (L.floribunda) described and figured by M.Labillardiere, which is found on the shores of King George's Sound, where, in no way recognising the dependent habits of its congeners, it rises from the soil to a tree fifteen feet high, being never remarked relying upon other vegetables for its subsistence.