THE LADY FERN. p 35 
are not so elegantly divided. It has been gathered in Devonshire 
by the Rev. J. M. Chanter; and at Tunbridge Wells by Mrs. 
Delves. ; 
23. undulatum (M.). A large form, with broad fronds, and of the 
incisum type. The fronds, exclusive of the stipites, which as well as 
the rachides are red, are a foot and a half long, and about nine 
inches broad ; the pinne are crowded, broadish (14 inch) irregular, 
and acuminately pointed. The pinnules are lanceolate acute, rather 
irregular, stalked, deeply pinnatifid, almost pinnate, erowded, and with 
a reflexed tendency. The edges of the lobes are somewhat wavy, 
which gives a minutely crispy appearance to the fronds. It was 
found in Guernsey by Mr. J. James of Vauvert. 
24. validum (M.). A dwarfish but stout-growing variety, with 
much of the character of /azum. The rachis, which with the stipes 
is reddish, is particularly broad and thick, and is flexuose in the 
upper part. The pinne are crowded, and acuminate; the pinnules 
also crowded, the lobes more or less ineurved in the way of rhœticum, 
and deeply pinnatifid, the secondary rachides slender. It was found 
at Dolgelly, in Wales, by the Rev. J. M. Chanter. 
25. rheticum (Lin.). This variety is generally distinguishable by 
its narrow erect fronds, and its distinct and apparently linear pinnules, 
which however owe their narrowed appearance to the inflection of 
the points of their lobes over the sori. The anterior basal pinnules 
are also conspicuously longer than the rest, as are the anterior basal 
lobes of all the pinnules. The caudex grows in tufts, and produces 
numerous fronds, which stand upright, and though herbaceous, have 
a rigid appearance, owing probably to the circumstance of their 
growing exposed, as is generally the case with this variety. The 
same cause, namely, exposure, often produces more or less of con- 
vexity in the pinne. It occurs with the stipites either pale green, 
orpurplish red. The fronds grow from two to four feet high, with a 
narrow lanceolate outline. The pinne are distant, the lower ones 
most so, and these are also usually deflexed, though the majority 
have an upward or ascending tendency.. The secondary rachides 
are slender, and without any herbaceous wing, the. pinnules being 
set on distinct from each other, and very commonly at a right angle 
with them; these pinnules are narrow, linear-lanceolate, becoming 
D 2 

