
192 THE BRITISH FERNS. 
the stipites branched, and producing a fine tufted cristate head, but 
not capitately crested as that is. It has been found at Smeerset, 
Yorkshire, by Mr. A. Clapham. 
138. cristatum nanum (M.). A beautiful dwarf crested form. 
The specimen before us is five inches high including the stipites ; 
the base of the frond, about an inch and a half long, is half an inch 
wide, cordate, and normal; the frond then spreads out into a repeat- 
edly branched tuft in which the divisions appear narrow throughout, 
and the ultimate segments terminate in blunt divaricate teeth; this 
tuft is four inches across. This charming variety was found by Mr. 
James in Guernsey. 
139. cristatum transversum (M.). A neat crested form about nine 
inches high, an inch or more in width, cordate at the base, forked 
towards the apex with the branches laterally twisted so as to cross l 
each other; these branches are multifid and cristate at the ends. 
It was sent to Mr. Wollaston, from Minehead, Somersetshire, by 
Mr. W. Bowden. 
140. Jacksonii (M.). A very pretty and curious form, having 
fronds six or eight inches long, more or less narrowed or irregularly 
contracted, but furnished with unequal rather prominent lobes in the 
way of sinuatum (45), the contracted parts crenate ; the base is sub- 
truncate and the apex irregularly branched, the branches themselves 
irregular at the margins and terminating in every frond in a 
beautiful tassel or cristate tuft, the tassels forming dense globular 
masses. It has recently been found at Bideford, Devonshire, by 
Mr. C. Jackson. 
141. rigidum (Woll.). This is a bold looking variety, and is 
especially remarkable for the rigid or wiry character of its stipites, 
which are sometimes simple sometimes ramose ; the costa also is 
remarkably stout and stiff. The fronds, exclusive of stipites, are 
about a foot long, two or two and a half inches broad, cordate at 
the base, more or less multifid at the apex, with crispy or twisted 
segments; the margins are usually nearly parallel, obscurely crenate, 
or sometimes irregularly serrate-dentate especially in the upper 
part; sometimes there are a few deep rounded lobes as in the 
variabile group. There is a slight tendency to become supralineate. 
It was found at Littlehampton, Sussex, by Mr. Wollaston. 

