THE COMMON HART'S-TONGUE FERN. 179 
cornute, submarginate, or irregularly lobate fronds are produced by 
this form in Mr. Wollaston's garden; they result, in his opinion, 
from an injury caused at a very early stage by a small dipterous 
insect. It has been found in recent times—in Guernsey, J. James, 
O. Jackson. Devonshire: Barnstaple, C. Jackson. Yorkshire: 
Byland Abbey, C. Monkman; Terrington, C. M.; near Doncaster, 
on magnesian limestone rocks, J. Hardy. Cumberland: Furness 
Abbey, near Ulverstone, A. Stansfield. Hampshire, Rev. W. H. 
Hawker. Denbighshire, Mr.T. Pritchard. [Plate LXXXIII B.— 
Folio ed. t. XLII, fig. 4]. 
—crispum irregulare (M.) is a curiously lobate form, the fronds 
having reniform lobes at the base, sometimes three or four in number, 
the margin being also here and there divided deeply so as to become 
irregular, some parts being also laciniate and there submarginate. 
The fronds are often dwarf, and sometimes horned, with a blunt 
terminal lobe. It has been sent to us by Mr. Wollaston, and is 
apparently of garden origin. 
99. crispum latum (M.). This is sometimes called crispum 
majus in gardens, but is not the variety first thus designated. It is 
remarkable for the great breadth of its fronds, which measure from 
three to four inches across, and are somewhat broadest in the centre, 
and have a tendency to develope the marginal crenatures into short 
pointed lobes ; the base is cordate, one of the lobes sometimes becom- 
ing a little pointed, indicating a tendency towards sayittato-crispum 
(8). It has been found in—Devonshire: Barnstaple, C. Jackson. 
Somerset: Nettlecombe, C. Elworthy. It is a very fine variety, 
but of course much resembling the other crisped sorts, chiefly differ- 
ing in its broader fronds. 
93. crispum majus (Jackson). This appears to be a distinct form, 
and a very fine one, but we are only acquainted with it from dried 
specimens. It seems remarkable for its erect habit, and its six or 
eight inch long stiff stipites, which, we are informed, are peculiar to 
it; the costa also is very thick; the lamina is fully a foot long, dark 
green, the base cordate with very large auricles or lobes, which form 
the broadest part of the frond, and measure three inches across ; 
above these the frond tapers gradually to the apex, the margins 
being frilled equally with the preceding forms. It was found in 
N 2 
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