10 CRYPTOGAMIA-FILICES. 



5. ASPLENIUM. Capsules in linear scattered masses. Cover linear, 

 separating at the side towards a midrib or vein. 



(>. SCOLOPENDRITJM. Capsules in nearly linear twin scattered 

 masses, between 2 parallel veins. Covers 2, linear, opposite, 

 folding over each other. 



7. BLECHNU&* Capsules in linear solitary masses, close to the 



midrib. Cover linear, fiat, separating towards the rib. 



8. PTERIS. Capsules in linear nearly marginal masses. Cover 



from the inflexed margin of the frond, wavy, continuous, 

 separating at its inner edge. 



* * Capsules on a branched terminal stalk. 



9. BOTRYCHIUM. Common stalk compound, flattened. Capsules 



sessile, naked, globular, simple. 



2. POLYPODIUM. 



1. P. vulgar e, root creeping, scaly ; frond lanceolate, deeply pin- 

 natifid, the lobes semi-alternate, linear-oblong, obtuse, crenulate ; 

 masses rather large, biserial. Common Polypody. 



Hal. In crevices of rocks, at the base of old trees in woods, 

 and on old walls, very common. 7/ 



This Fern has, in common with most of our native herbs, 

 been blotted from the list of medicinal plants, w here it long 

 retained a place as a mild purgative, or as an ingredient of 

 vulnerary salves. 



" Here finds he on an oak rheum-purging Polypode." 



DRAYTON. 



2. P. Phegopteris, frond triangular, hairy, pinnate, on a slender 

 smooth stalk ; leaves lanceolate, united at the base, semi-alternate, 

 the lower pair deflexed, pinnatifid, the segments obtuse, entire f 

 masses of capsules small, towards the margin of each segment. 



