CULTIVATION. 405 



hoped that what is now given in the preceding pages 

 will be sufficient to show the nature of Ferns, and the 

 methods adopted for propagating and preserving 

 them in the collections of this country. 



NOTE. 



In the preceding article on Cultivation it has been shown 

 that all Ferns are capable of being cultivated in this country 

 under one of three conditions as regards temperature, deter- 

 mined by the nature of the native climate of the different 

 species, which, as regards the species enumerated in the 

 preceding catalogue, I classify as follows : 



1st. Hardy, in the open air. 



North and Central Europe, including Great Britain 

 and Ireland, North America, North Asia. 



2nd. Temperate House. 



South Europe, Madeira, South Africa, North 

 India, China, Japan, Australia, South of the Tropics, 

 Tasmania, Norfolk Island, New Zealand, Chili, 

 Mexico. 



A few species of those countries are hardy, such are marked 

 H. after the name of the country ; some others improve by a 

 higher temperature, such are marked Tr. after the name of 

 the country. 



3rd. Tropical House. 



West Tropical Africa, including St. Helena and 

 Ascension, Mauritius, Ceylon, India, Malacca, the 



