THE BUCKLER FERNS. 
251 
nature of which encourages the travelling propen- 
sities of the roots. Few ferns like to be sodden 
in this manner at their roots like Tlielypteris. In 
cultivation the nearest approach to the natural 
conditions which have been described must be 
attempted. If planted in the rockery the lowest 
tier should be appropriated for its roots, which, 
when practicable, may be kept immersed in water 
or perpetually soddened peat soil. If it be kept 
indoors in pots these must stand in pans of water, 
and under such conditions you may successfully 
grow this beautiful fern. 
