INTRODUCTION TO THE REPORTS ON INSULAR ELORAS. 



33 



continental areas, especially in the southern hemisphere. 

 trate this point : — 



The following statistics illus- 



1 This number is probably too high, for possibly only two species are indigenous : see remarks, Part II., 

 pp. 31-34. 



2 Pleurophyllum, a genus of Coinpositse, is restricted to the Campbell, Auckland, and Macquarie Islands. 



3 These numbers are taken from Baron Mueller's Lecture on the Flora of Australia, 1882, and include the 

 vascular cryptogams. He there (p. 11) states that there are 550 genera in Australia, represented by only one 

 species each, and 160 of these genera are monotypic and endemic in Australia. 



4 The endemic species comprise several seggregate or critical ones ; and the number of genera is considerably 

 in excess of what it would be on the basis of Hooker and Bentham's Genera Plantarum. 



5 The endemic species are very closely allied to continental ones. 



