brought into cultivation, and Kew is always glad to 

 receive any additions, if possible in the form of well- 

 established plants ; if not, in the shape of dry spores, 

 which can be collected and sent very easily by post in 

 small packets. 



The following table, which shows the percentage of the 

 total number of ferns found in different parts of the 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 cent. 



Europe 4 



Temperate Asia, including 



Himalayas 18 



Temperate N. America ... ... 5 



Temperate S. Africa ... ... 7 



Australia and New Zealand ... 9 



South temperate America ... 5 



Tropical Africa ... ... ... 15 ,, 



Tropical Asia ... ... ... 39 ,, 



Tropical America... ... ...42 ,, 



The present hand list is divided into three parts : 

 (i.) Ferns proper (pp. 13-133) ; 

 (ii.) Fern allios (pp. 133-113) ; 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 



