ADIANTUH. 123 



white and brown scale, that we found it necessary to cut off 

 all the fronds, and watch the young ones, and keep them clean 

 as they advance in growth. Insects will not, however, be found 

 so troublesome in the greenhouse as among the stove Ferns. 



Many of the plants which are usually kept in the green- 

 house will, it must be kept in mind, succeed sometimes for two 

 or three years in the open air ; but then an unusually severe 

 winter comes and they are lost. It is, however, a good plan to 

 plant out all duplicates which may not be required, and this 

 should always be done in spring. 



In describing or enumerating the species of Ferns hardy 

 enough to live through the winter in a greenhouse, we need not 

 repeat the generic characters of such as are already given in 

 the first division namely, Stove Ferns. 



ADIANTUM. 



ADIANTUM ASSIMILE (Assimilated). A New-Holland Fern 

 of great beauty, continuing green all the winter. Fronds 

 thrice-divided, or tripinnate, with the leaflets of a rhomboid 

 shape, and the margin slightly cut. The cover of the spore- 

 masses is kidney-shaped. The rhizome creeps very freely, 

 sending up fronds all over and round the sides of the pots : 

 hence it is easily increased by division. 



A. CAPILLUS-VENEEIS (Venus's Hair), Fig. 58. Though this 

 beautiful Fern is a native of Britain, yet it is too delicate 

 to bear the open air in our gardens. It is identical with 

 A. Moritzianum of some authors, who mistook it for a different 

 species in consequence of its growing much larger in warm 

 countries Madeira, for instance. We have had large patches 

 of it from that island under that name; but we invariably 

 found them, when treated in a similar manner, to assume the 

 character of the true A. capillus- Veneris ; and then, again, 

 when transported into the stove or Orchid-house, they 

 returned to, or produced the large fronds of, the so-called 



