542 Proceedings. 



two contiguoiis 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 botli 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 Pomaclerris elliptica, Leucopogon richei, Leptospernmm scoparium, 

 Poranthcra microphglla ; amongst the latter Coprosma piimila, 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. 



Eanunculace®. — Clematis is common to both countries, but the species of 

 each are endemic. In Myosunts, a genus of two species, it is worthy of note 

 that the European form is found in Australia ; the American form in New 

 Zealand. Rainiiiculus 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 rej^resented by a single endemic 

 species in each country. The larger order Crnciferse 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. Pittosporese, an order of which all the genera, 

 except Pittosporiim, are restricted to Australia, is represented in New Zea- 

 land by sixteen species of Pittosporum, all of which are endemic. Caryophyllese 

 comprises three genera and four species common to both countries. In 

 Malvaceae, Plagianthus is restricted to these countries, but has no species 

 common to both. Both countries possess two species of Hibiscus of wide 

 distribution. 



In Lineae, Linum marginals is the only common species, and does not 

 occur elsewhere. Geraniaceoi has three species of Geranium, one of Pelar- 

 gonium and two of Oxalis, common to both countries. In Eutaceas all our 

 species are endemic, but belong to Australian genera. ^Meliace^e is repre- 

 sented m both countries by a single endemic species of Dysoxyhun, and 

 Olacinete by one of Peimantia. 



In Ehamnese, Pomaclerris, 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 Sapindaceas only a single species 

 of Dodoncsa 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. 



