THE COMMON HART’S-TONGUE FERN. 177 
there slightly crenate. The upper surface is striately-furrowed, 
` the tissue being sunken between the veins, producing slight but 
evident parallel furrows, and the veins themselves bear scattered 
elevated points rather plentifully over the whole frond. It was found 
by Mr. J. James, of Vauvert in Guernsey, and proves quite constant 
and very handsome. Similar forms have been found by Mr. Elwor- 
thy, at Nettlecombe, and by Mr. R. Bloxam, in the Isle of Wight. 
86. Kitsonie (M.). The fronds of this curious form are a foot 
long, and about an inch and a quarter broad, cordate at the base, 
and otherwise also normal in outline, their peculiar characteristics 
being, that the upper surface is covered with broken obliquely 
transverse strie or furrows, similar to those of muricatum (85), and 
in addition there is a raised ridge or excurrent wing on each side 
of and parallel with the costa, to which it is closely contiguous 
for the greater portion of its length, becoming slightly removed near 
the top. It is a fertile form. This was found in Devonshire, by 
Miss Fanny Kitson, and was communicated by Mr. R. J. Gray. 
87. scalpturatum (M.). This is a fine and constant form, 
and when well marked is very handsome. The fronds are a foot 
long exclusive of the stipites, and from an inch to an inch and a 
half in width, deeply erenato-lobate; the base is cordate, the apex 
attenuate, the upper surface irregularly ridgy towards the margin 
as if the tissue had been irregularly carved, leaving a mass of 
wavy branching or confused prominent lines; the lobes are some- 
times entire, sometimes toothed. The plants are frequently supra- 
soriferous, and some of the speeimens have this character more 
strongly marked than in any other cases within our knowledge ; 
they are often more or less marginate. The most elegant and 
characteristic forms have been found in Guernsey, by Mr. James; 
and at Nettlecombe, by Mr. Elworthy ; and in the Isle of Wight, 
by Mr. R. Bloxam. Mr. James has also sent from Guernsey a 
form in which the surface is only slightly sculptured at intervals. 
Another slightly marked form, hardly sufficiently developed, has 
been sent from Coxwold, Yorkshire, by Mr. C. Monkman. 
88. scalpturato-lobatum (M.). This is another handsome form 
like the last, but multifidly lobed at the apex. There are two 
forms: one rather more irregularly lobed and laciniately-toothed on 
VOL. II. N 

