THE PERN PARADISE. 
"habit, the fronds of this little Fern endure 
through the winter. 
Some difficulty is experienced by amateur Fern 
growers in the cultivation of the Wall Rue, a 
difficulty which, it is to be feared, arises chiefly from 
want of care in sufficiently studying the natural 
conditions under which it thrives. Too frequently 
the Fern is not properly transplanted. Perhaps 
only a third of its little fibrous rootlets are secured 
when it is taken from its natural habitat. In 
such a case failure in growing it is almost in- 
evitable. It is often very difficult to transplant it 
without doing injury to crown or root-stock, and, 
indeed, it is generally impossible to obtain it entire 
and uninjured without removing the stones amongst 
which it is growing. But this difficulty overcome, 
and the tiny plant secured intact, it will be gene- 
rally found comparatively easy of cultivation. It 
should be planted between fragments of stone in 
such a manner as to imitate, as nearly as possible, 
its natural conditions; and for soil it must have 
sandy leaf-mould and old pieces of mortar. 
372 
