X. SCOLOPENDRIUM. 175 
S. hastatum; fronds strap-shaped, having a pair of 
angular spreading lobes at the base : i. e hastate. 
. crispum; fronds strap-shaped, the margin much un- 
dulated, the base auriculate cordate; usually barren 
(fig. 7, p. 178). 
if. lobatum; fronds oblong dilated at the apex and 
there cut into acute lobes (fig. ft, p. 178). 
0. multifidum; fronds forked, often repeatedly towards 
the extremity, fertile: sometimes undulated and then barren. 
[PHVLLITIS MDLTIFIDA, Ray.] 
1. laceratum ; fronds short, broad oblong-ovate, or 
obtusely sub-deltoid, the margin deeply inciso-lobate, the 
lobes large crowded and multifid-crisped at their apex ; 
or sometimes strap-shaped, the margin inciso-lobate, with 
the lobes narrow elongate and taparing to a point ; the 
apex submultifid, the base sometimes hastate. 
K. ramosum; stipes branched, the branches of frond 
dilated at their apices and divided into numerous un- 
equal crisped lobes (fig e, p. 178). 
The Common Hart's Tongue Fern has a compact tufted 
caudex, to which the fronds are terminal and adherent. 
The fronds are produced in the spring about April, and 
remain green through the winter ; they are at first erect, 
but by degrees assume, more or less, a gracefully drooping 
habit. The stipes occupies about a third of the length of 
the fronds, and is of a brown purple colour, somewhat 
shaggy with narrow membranous pale-brown scales, which 
are also continued along the back of the mid-rib. The 
fronds are narrow elongate lanceolate, or oblong-strap- 
shaped, entire and plane on the margin, acute at the apex, 
cordate at the base, and varying from about six inches to 
