591 
Comparison with other countries .] APPENDIX. 
that there should be but a single species of Fern in the list, though those of 
the Flora exceed 100, of which 28 species are found likewise in other 
countries. It is also worthy of notice that of the Submersed Algae not more 
than one-sixth of the whole number found occur in the list : while of the 
Musci and Hepatic® one-third, and of the Lichenosae two-thirds of those 
observed are also natives of Europe. 
The proportion of European plants in Terra Australis, though only 
one-tenth of the whole number observed, appears to be greater than that in 
the Flora of South Africa. And the vegetation of the Cape of Good Hope, 
uot only in the number of species peculiar to it, but in its general character, 
as depending on the extensive genera or families of which it is composed, 
differs almost as widely from that of the northern parts of the same con- 
tinent, and the south of Europe, as that of the corresponding latitude of 
Terra Australis does from the Flora of India and of Northern Asia. 
Of the proportion of European species in the Flora of South America, 
which is probably still smaller than that of South Africa, we have very 
insufficient means of judging: we know, however, from the collections 
made by Sir Joseph Banks, that at the southern extremity of America, 
certain European plants, as Phleum alpinum, Alopecurus alpinus, and 
Botrychium Lunaria exist ; and that there is even a considerable resem- 
blance in the general character of the Flora of Terra del Fuego to that of 
the opposite extremity of America and of the North of Europe. 
