10 
world was drawn up by Mr. Baker in 1867 ; but he does 
not think that the discoveries of the last 20 years will 
have altered any of the figures materially : — 
Arctic Zone - 
1 per 
Europe - - - 
4 , 
Temperate Asia, includinor 
Himalayas - - » 
18 , 
Temperate N, America 
5 , 
Temperate S. Africa - 
7 , 
Australia and N. Zealand 
9 . 
Sonth temperate America 
5 , 
Tropical Africa - - - 
15 , 
Tropical Asia 
3D , 
Tropical America - 
42 , 
The present hand-list is divided into three parts : — 
(i) Ferns proper (pp. 13-133) ; 
(ii) Feen Allies (pp. 135-143); and 
, (iii) as an Appendix, a list of garden forms of British 
species (pp. 145-183). 
With regard to (i) Ferns proper, the arrangement is 
alphabetical and synonyms have been only sparingly 
introduced, those included being chiefly such as are in 
use in gardens and which are here referred to the correct 
name in each case. It has not been thought necessary, 
therefore, to supply an index. Those who wish to pursue 
the study of fern-nomenclature further may fall back 
on Hooker and Baker's Synopsis Filiciim, upon which 
the present hand-list is substantially based. S 
The Fern allies (ii) have also been grouped alplia- 
betically. It has not been thought necessary for the 
