216 POLYPODIUM DRYOPTERIS. 
crocks or stone. This will prevent the fine compost 
from filling the vacancies among the drainage upon the 
moss or rough peat. A depth of about three inches of 
the prepared compost will be quite sufficient. Upon 
this the plants are to be placed rather firmly, the main 
root of the plants to be just, and only just, below the 
surface. After this is done, providing the weather is 
anything but wet, a moderate watering should follow 
to settle the whole, after which the plants will require 
to be kept moist until the new fronds begin to unfold, 
when, as they increase iu size, a free supply of water 
will be necessary over the whole plant, so that a shady, 
moist atmosphere may be kept about it as steadily as 
possible. 
The same directions as regards drainage and planting 
must be observed for pot culture, giving a continual 
supply of water during the growing season, and keep- 
ing the pots in the shade. 
This Polypodium may be readily increased by division. 
As winter approaches the water should be gradually 
withheld, and the plants allowed to have a drier soil to 
stand in through that season. The plants in pots should 
have a slight protection during the winter. They 
thrive remarkably well in a greenhouse, and would do 
well for a case of hardy Ferns. 
