SEPTEMBER. 365 
The ashes are useful in the manufacture of soap and 
glass. 
ee ae 
POLYPODIUM. (Potyropy.) 
Generic Character. The seeds are in round masses placed 
along the leaflets. 
PoLYPODIUM VULGARE. (Plate XX. Fig. 78.) Common 
Polypody. Nery common, found under almost every hedge, 
and on stone walls and rocks. The young leaves first appear 
in May and June, but they remain green all the winter, and 
the seeds are ripe early in this month. It is an elegant, 
pendant plant, and often beautifully ornaments the stumps 
of old trees. It is long, narrow, and deeply divided into 
segments, upon which are placed the seed-vessels, which 
are yellow when becoming ripe. 
a ere 
ASPLENIUM. (SpLeen-wort.) 
Generic Character. See page 356. } 
AsPLENIUM ADIANTUM NiGRUM. (Plate XX. Fig. 79.) 
Black-stalked Spleen-wort. Common on banks and rocks ; 
but growing more luxuriantly on walls and ruins. The leaf 
