THE COMMON HART'S-TONGUE FERN. 193 
142. crista-galli (Woll.). This handsome variety is allied to 
multifidum (127), but differs from it in the apex being a complicated 
folding rather than a complicated dividing of its parts. The fronds 
are a foot or more in height, one and a-half to two and a-half inches 
broad, cordate at the base, somewhat undulated below, the margin 
crenate, the apex forming a compactly crispy tuft. Itis a permanent 
form and reproduces itself from its spores. "The original plant was 
found some years since at Glanville's Wootton, in Dorsetshire, by 
Mr. Wollaston ; and it has also been found at Nettlecombe by Mr. 
Elworthy; at Malham by Mr. Stansfield; and on Whitbarrow by 
Mr. F. Clowes: the latter sometimes produces dwarf irregularly 
lobed turgid net-veined multifid-crisped fronds. Mr. Wollaston has 
raised from this a striped variety, which however is not permanent. 
143. glomeratum (M.). This is a very distinct and very beautiful 
variety. The fronds are three to six inches high, and are entirely 
without any normal plane or strap-shaped portion, but the costa 
divides over and over again in so dense a manner that a perfectly 
globular erispy mass is produced, the margins of which are obtusely 
and obscurely erenate-lobed. It was found in Jersey by M. Picquet, 
and was communicated by Mr. C. Jackson. When in its true cha- 
racter this is one of the finest varieties known, but it occasionally 
produces a normal frond. 
144. ramoso-glomeratum (M.). This also is a beautiful dwarf va- 
riety, ramose in the stipites, producing several branches which are 
again ramose from the very base of their lamina, branching out into 
several divisions which are so much dilated that they form rounded 
densely erisped obtuse-looking tufts with bluntly crenated margins. 
The whole frond consists of a series of five or six of these dense 
glomerate frilled masses, all brought together into one head. It was 
found by Mr. James in Guernsey, and is perhaps the most rare and 
beautiful of all the ramose forms. A ramose viviparous seedling 
raised by Mr. Clapham, somewhat approaches this in character, 
being repeatedly divided with obtuse tufts, but is apparently less 
densely erisped. 
145. laceratum (M.). This remarkably fine variety is sometimes 
known in gardens under the names of palmatum, serratum, and 
endiviefolium. The fronds are variable, often short and broad, six 
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