CHAPTER XIV 



ASPIDIUMS 



In this genus botanists now include many Ferns, which 

 were formerly known under separate generic names. 

 Those generally known as Aspidiums do not form an 

 important group, only about six species being given in 

 most nursery catalogues, yet in Hooker's " Synopsis 

 Filicum " over fifty are given. Of those most generally 

 known under the generic name, A. trifoliatum is one of 

 the most useful ; there is also a larger form, known in 

 gardens as A. macrophyllum. A. vwiparum, which has 

 the surface of its fronds studded with tiny round bulbils, 

 is also a popular species. Those generally known as 

 Cyrtomiums come next. C. falcatum and its improved 

 varieties are among the most popular and easily grown 

 Ferns we have. C. Fortunei and C. caryotedium may also 

 be included among desirable Ferns for a cool greenhouse. 

 All of these succeed best when potted in good loam, 

 with some manure added. "When growing young plants 

 on, they may have warmth, but must not be subject to a 

 very dry atmosphere, for thrips are particularly partial to 

 these Ferns. A cool bottom with a little warmth above, 

 and no dry draughts, will ensure good growth. It may 

 be added that there are few Ferns which are more 

 benefited by the application of liquid manure. The 

 plants kept quite cool during the Winter, and given some 

 warmth early in the year, make most satisfactory growth. 

 The Polystichums are better known under the old name. 

 P. coriaceum, or P. Capense, and P. setosum are the most 



68 



