186 
Choice Ferns for Amateurs. 
scatter themselves, in their native state, about 
September, after which the fronds soon die down, 
the barren ones remaining on the plants rather 
longer than the others. 
The Mountain Parsley Fern delights in a cool, 
moist, and shady spot, and is especially adapted for 
a quiet nook in a rockery, where it should be planted 
in a well-drained place and in a mixture of loam 
Fig. 83. Cryptogramme crispa acrostichoides, a pretty North 
American variety of our Mountain Parsley Fern often 
called Allosorus Crispus. 
and peat in about equal parts, with the addition of 
bricks broken into small pieces ; but care should be 
taken that the compost is free from lime, which is 
highly injurious to its very minute, fibrous rootlets. 
It may be propagated by spores, but this is a slow 
and tedious process ; the more so that it is readily 
increased by the division of the crowns in the spring 
months, just before growth commences. This little 
