542 Proceedings. 
two contiguous countries exhibit such wide differences between their respec- 
tive floras. Many of the characteristic genera of Australia are represented 
in New Zealand by one, or perhaps two, species common to both countries, 
but not found elsewhere ; but exactly the same phenomenon is exhibited in 
Australia by characteristic New Zealand genera. Amongst the former may 
be named Pomaderris elliptica, Leucopogon richet, Leptospermum scoparium, 
Poranthera microphylla ; amongst the latter Coprosma pumila, Celmisia longi- 
folia, Senecio lautus, Pimelea longifolia. It is evident, therefore, that a 
portion of the Australian flora has been derived directly from this country. 
It will be advisable to indicate the chief points of interest connected 
with the species and genera common to both countries without going into 
detail to any great extent. 
Ranunculaces.—Clematis is common to both countries, but the species of 
each are endemic. In Myosurus, a genus of two species, it is worthy of note 
that the European form is found in Australia ; the American form in New 
Zealand. Ranunculus is represented by twenty-six species in New Zealand 
and eleven in Australia, of which five are common to both countries. Three 
of these are not found elsewhere. Caltha is represented by a single endemic 
species in each country. The larger order Crucifere which is sparingly 
represented in this colony, contains three species common to both countries, 
but of wide distribution, and a fourth not found elsewhere. One of our 
violets extends to Tasmania, and Hymenanthera is represented by a single 
species in each country. Pittosporee, an order of which all the genera, 
except Pittosporum, are restricted to Australia, is represented in New Zea- 
land by sixteen species of Pittosporum, all of which are endemic. Caryophyllee 
comprises three genera and four species common to both countries. In 
Malvacee, Plagianthus is restricted to these countries, but has no species 
common to both. Both countries possess two species of Hibiscus of wide 
distribution. 
In Lines, Linum marginale is the only common species, and does not 
occur elsewhere. Geraniacee has three species of Geranium, one of Pelar- 
gonium and two of Oxalis, common to both countries. In Rutacesm all our 
species are endemic, but belong to Australian genera.  Meliaces is repre- 
sented m both countries by a single endemic species of Dysoxylum, and 
Olacineæ by one of Pennantia. 
In Rhamnes, Pomaderris, a genus restricted to Australia and New 
Zealand, and specially abundant in cool regions of the former, is represented 
here by five species, three of which are common to both countries. Discaria 
has a single species in each country. Of Sapindacem only a single species 
of Dodonea is common to both countries. The genus is more largely 
developed in Australia than elsewhere, but the New Zealand species is the 
most widely distributed of all, 
