THE COMMON HARTS-TONGUE FERN 
occasionally normal, ‘The pocket is fertile. This is likewise of Irish origin ; it was found by Dr. Allehin 
in 1853, and has continued constant 
38. abruptum (УР). The peculiarity of this variety consists in the midvein or rachis rarely reach 
to the apex of the frond, which is blunt and rounded, It also occasionally divides at the summit, In 
other respects it is normal, It was found in Sussex by Mr, Wollaston, in 1854, and is only a sub- 
permanent variety, some of its fronds resembling those of tho next variety 
39. variabile (W). This, 
mde of various shap sizes, Tt is a 
ım, and constant under cultivation, ‘The fronds are either normal, branched, 
m, or bi-reniform, abrupt, and often partially or wholly unite two forms on one stipes. It is 
abundantly fertile, and has been found in Guernsey by Dr. Allchin, and Mr. C. Jackson, Another 
m, which Mr. Woll 
ın calls bireniforme, connects this with the last, In this the stipes 
generally bears two Kidney-shaped lobes ; sometimes the fronds aro only forked, the divi 
at the apex ; occasionally th ranched, each branch bearin 
its reniform lobe or lobes, Tt has been 
found in Guern: 
у, Devonshire, and the Isle of Wight, but can hardly be considered permanent, Tn 
found by Mr. Chanter, many of the fronds con 
4l of two reniform lobes standing so 
form of a goblet 
t too unlike it to bo 
narkab 
40. polymorphum (W.) is certainly only a modification of the same variety, ім 
left unnoti 
Tt was found in Sussex by Mr, Wollaston in 1854. The fros 
-at breadth compared with their length. They are either normal, multifid, ramoso, truncate, or show 
‘one or more of these characters combined. Other from 
if the old 
fronds were attempting to throw out new ones. It is fertile, constant, and rare 
41. apicitodum (ML). А distinct and marked form, with fronds about three inches long and two 
broad, widest upwards, the midvein not extending to the end, which is blunt and rounded in outline, 
and deeply ent into several obovate lobes. t was found in Guernsey by Mr. J. James 
12. striatum (ML). Another of Mr. James's discoveries in Guernsey. The fronds are obliquely 
streaked with yellowish green on a dark green, giving them a distinct variegation, Another variegated 
form fou ey by Mr, Jackson 
lin which is streaked with yellowish white, is not. constant, 
43. vieiparum (W.) is one of the most remarkable instances of viviparous growth amongst our British 
bulbi 
and is covered with 
plant has never yet attained any other than the most pigmy si 
h on the frond and stipes. The fronds are most irregular in shape, but chiefly laciniate. 
It is а perfectly constant form, and was found in Clare, Ireland, by Dr. Allehin in 1853. 
44, spirale (N). This was found in Guernsey by Mr. James, The fronds are short, two or three inches 
long, narrow in proportion, undulate, and twisted in a spiral or corkscrow fashion. Tt promises to be a 
me character 
constant form, several successions of fronds having maintained the 
45. crispatum (М). А sm 
1 and very much curled undulately-crisped variety, tapering from the 
broadish base to an attenuated point, which narrowing of the points gives it an aspect different from tho 
usual forms of erty 
and by Mr. James in Guerns 
у, and is very seare and beautiful. 
46. crispum (Willd). "This beautiful variety differs from all others in being uniformly barren, It is 
of the frond. Tt 
one of the oldest forms known, and is most justly admired for the elegant frilli 
attains the full size of the species, and is exquisitely and symmetrically waved or corrugate, and its 
«тешме. The basal lobes are unusually developed, an 
overlay each other to а great extent 
w. W. H. Hawker, in 
as been found recently in Yorkshire by Mr. A. Clapham, in Hants by tho H 
Denbighshire by Mr. Pritchard, and in Guernsey by Mr. С. Jackson. 
47. subearicgatum (W). Тһе fronds of this form are almost always divided at the point, and faintly 
streaked with white, giving them a mealy ap This whitene 
of the cuticle from the tissue beneath, The fronds are extremely various in shape, being ramose, or 
multiñid, or both, irregular, undulate, erenate, laciniate, generally sli 
Jed, but sometimes, as 
in sagittifolium, producing a barbed auricle, and they are pr 
