e same coast, within
the tropic. The southern range of the two genera seems to be nearly
beyond the fortieth degree of latitude; but in the northern hemisphere,
Loranthus exists in Siberia.

UMBELLIFERAE. The equinoctial portion of the Herbarium contains only
three or four plants of this extensive European order, belonging to
Hydrocotyle, Azorella of Cavanilles and Labillardiere (from which
Trachymene of Rudge is probably not distinct) and a suffruticose plant
referred to Cussonia, that have been collected upon the East Coast. Upon
the north-western shores, Azorella was alone remarked, of which a species
is very general upon its main and islands, and chiefly remarkable for its
gigantic herbaceous growth.

MYRTACEAE. With respect to that portion of Myrtaceae, lately discovered
upon the north-western shores of Australia, and which are alone worthy of
remark here, it is to be observed, that, considering the many points of
that coast visited during the progress of the relative voyages, the
number of species observed are comparatively few, for, including
Eucalyptus, it does not exceed sixteen plants. Of Eucalyptus itself, only
seven species were detected on those shores, and these, for the most
part, form small trees, more approaching the average dimensions of all
their congeners in the colony of Port Jackson. Melaleuca is limited to
three species, one of which was originally discovered by the celebrated
navigator, Dampier, on the West Coast, where Beaufortia has been recently
seen. Four species of Tristania, their related genus, were gathered in
about latitude 15 degrees South, where also an Eugenia, bearing fruit,
was observed; but of Leptospermum, or Baeckea, genera chiefly belonging
to the higher latitudes of New Holland, no species appeared throughout
the whole extent of coast examined.

RHAMNEAE and CELASTRINAE were formerly united among the Rhamni of
Jussieu, but disposed in sections, differing from each other in the
position of the stamina, with relation to the petals, and in the
character of the fruit; which, when viewed with other important
differences of fructification, induced Mr. Brown to modify and define
them as distinct orders.

In the Herbarium of the voyages, there are a few plants belonging to
Rhamnus, Ziziphus, Ceanothus, or Pomaderris, and Celastrus, but both
families prove to be comparatively rare in the intratropical parts of
Terra Australis, beyond which Cryptandra seems only to exist. Upon the
n