GEOGRAPHY AND BOTANY OF THE ISLANDS. 
19# 
The following is the rotation as regards the number of species which 
they contain, in which come the nine orders of the flora which are 
represented by 20 species or more. 
1 Filices . . 
. 168 species. 
6 Euphorbiacese . 
45 
species. 
2 Orchidese 
• 79 „ 
7 Composite . . 
43 
3 G-raminese . 
• 69 „ 
8 Leguminosse . 
41 
» 
4 Cyperacese . 
• 62 „ 
9 Myrtacese . . 
20 
5 Rubiaceae . 
. 57 „ 
The 1058 wild species belong to 110 natural orders and 440 genera, 
so that the proportion of species to a genus in this flora is between 
2 and 3, and of species to an order between 9 and 10. 
