Ferns and Fern Culture. 37 
In the warmer climates they abound in moist forests on 
the mountains, covering the damp rocks and clothing 
the stems of trees. The heavy rain and mist cause their 
foliage to be in a continually dripping condition, the 
moisture hanging in drops at the tips of the divisions of 
the fronds, like myriads of diamonds. In the cooler 
climates they grow in ravines and gullies and on drip- 
ping rocks, rarely in exposed situations. 
TRICHOMANES RENIFORME. 
(The New Zealand Kidney Fern.) 
To imitate these conditions of growth they require a 
cool house, shaded from the rays of the sun, and either 
glazed very tightly so as to keep the house close and free 
from draughts, or the Ferns must be covered by glass 
shades or frames. Many of the species, notably the 
Todeas, are so hardy that they will bear many degrees of 
