

162 THE BRITISH FERNS. 
half, is strongly erenato-lobate, and sometimes a little undulated ; 
the base is cordate, the apex usually attenuate and simple, but some 
forms similar in other respects are lobed or multifid at the apex. 
The fronds are very distinctly suprasoriferous, the upper series of 
sori being often as large and distinct as those of the lower surface. 
It is of rather frequent occurrence, having been found at Ilfracombe, 
Devonshire, by the Rey. J. M. Chanter; at Barnstaple, by Wine, (02 
Jackson, the plants being freely soriferous above and scarcely at all 
beneath ; at Saltwood, Kent, by Mr. F. Brent; at White Waltham, 
Berkshire, by Mr. D. Maher ; at Castle Howard, Yorkshire, by Messrs. 
Stansfield ; at Coxwold, by Mr. ©. Monkman, and again at Mow- 
thorpe Dale with ramose stipites ; at Whitby, also in Yorkshire, by 
Mr. J. Willison (multifid form) ; and in Guernsey by Mr. Jackson (one 
form multifid) and Mr. James. The fronds are sometimes slightly 
marginate, and merge into those of submarginatum (74). The plant 
formerly called stenophyllum, found by Mr. James, in Guernsey, a 
marrow linear form, cordate at the base, with broad shallow entire 
crenatures extending nearly to the point, and having numerous small 
roundish sori near the margin above, as well as the normal ones 
beneath, does not appear to be permanently distinct. Most of the 
forms are ornamental plants, and all are extremely interesting on 
account of their suprasoriferous habit. [Plate LXXXV B.] 
44, pocilliferum (M.). A large irregularly-lobed permanent form, 
stout and rigid in texture, often forked, somewhat supra-marginate, 
and sometimes contracted or irregularly lobed or sublaciniate at the 
margin; its chief peculiarity, however, is the production on its 
under surface, of irregularly-placed cup-shaped or trumpet-shaped 
excrescences, frequently a quarter cf an inch in length. It was 
found in Guernsey by Mr. J. James, of Vauvert. A variety with 
similar excrescences having the fronds sinuate-lobed, and the 
venation much disturbed, has been found at Crambe near Malton, 
by Mr. C. Monkman. The fronds of this plant are also sometimes 
laciniate, lobed, or irregular, or slightly submarginate. 
45. sinuatum (Woll.). This name includes numerous large- 
growing irregular and usually handsome forms. Some of these 
have the margin of the frond sinuated, the lobe-like projections 
being irregular in size, and entire or obscurely crenate. Sometimes 

