230 
POLYPODIUM VULGAEE. 
a moderate degree of exposure to light when once 
established. It particularly delights in the decaying 
trunks of old trees, so that these should be introduced in 
forming the rockery, and the plants fixed upon them by 
filling the crevices with fine leaf-mould, peat, and sand, 
and fixing the main root of the Fern upon this com¬ 
post early in the spring; or it may be planted in other 
parts of the rockery in the above-mentioned compost, 
with a free admixture of sand. It requires only a 
moderate supply of water, and must be well drained. 
It is as hardy as any of the species, but will, if pro¬ 
tected a little, remain green all the winter. If exposed 
to severe frost the fronds become brown and die off. 
It will grow very well in pots or pans with a good 
drainage, and in the above-named compost. It will 
grow, also, in the greenhouse, where it forms a 
very pretty object, and becomes evergreen. It may be 
easily propagated by division, winch must be done in 
the spring." 
