330 CRYPTOGAM. FILICES. Blechnumi 
Asplenium scolopendrium. With. 766. 
COMMON H -\RT*S TONGUR. Moisf shady rocks, 
^ mouths of wells, old walls, and in tlwr fissures of rocks. 
Oxion Rotto:ns. P. July. 
BLECHNUM. Smith. 1135. With. 765. 
Fructif. in llneis longitudinalibus, continuis, 
costae adjacentibus. Involucr. superficia- 
rium, continuum, costam versus dehiscens. 
Capsules forming 2 parallel lines near the rib 
of the leaf. 
boreale. B. frondc pinnata glabra : plunis linearlbus 
obtusiusculls integerriinis basi subaequali- 
bus. 
B. Ba rren leaves wing-cleft : fruitful leaves- 
winged^ narrower ; sgements very entire. 
B. Spicant. With. 765. 
NORTHERN BI.ECHNUM. ROUGH SPLEEN- 
\ WORT. Groves and moist heaths. Stapleford and 
Langford Moors. * P. July. 
PTERIS. Smith. 1136. With. 764. 
Fructif. in linea marginali, continna. Invo» 
lucrum e margine ipsius frondis inflexo, 
continuum, interius dehiscens. 
Capsules disposed in a tine under the refected 
edge of the leaf. 
^quili- P. fronde supradecomposita : pinnulis lance- 
na, olatis acutiusculis; infimis pinnatifidis; su- 
perioribus minoribus. 
P. Leaves more than doubly compoundi , 
leafits winged', wings spear-shaped; the 
lowermost wing-clejt ; the upper ones smallm 
