136 POPULAR GEOGRAPHY OF PLANTS. 



Zealand, the greater proportion are exogens. Of the remain- 

 ing third, not quite one-twelfth of the species contained in 

 it are European; but a much larger proportion, namely, 

 nearly one-fourth, is found in Australia, to the vegetation 

 of which country that of New Zealand bears a closer resem- 

 blance than to any other. " The decided preponderance of 

 Australian forms is not confined to this large number of 

 absolutely identical species ; it prevails also in the genera 

 containing peculiar species ; and with regard to the Na- 

 tural Orders in New Zealand, with the exception only of 

 four, there are none which are not also found in Australia 

 and Tasmania." A much smaller proportion of species is 

 common to South America, namely, nearly one-eighth ; and 

 a smaller still nearly one-sixteenth to the Antarctic and 

 Fuegian Islands, etc. 



The few genera which were before mentioned when speak- 

 ing of Australia, as including species with which we are fa- 

 miliar in England, are likewise to be met with in New Zea- 

 land. Amidst all the foreign forms which meet the eye, an 

 English Silverweed (Potentilla anserina) must be a refresh- 

 ing sight; or a Wood Sorrel (Oxalis), or a Sundew (Drosera), 

 or any of the Crowfoot tribe (Ranunculacece) . There is one 

 most splendid species of this tribe called Ranunculus insiynis, 



