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sometimos moro obliquely cuneate there, thus becoming sub-
trapoziform or rhomboidal, distant and usuaUy opposite below, more
crowded and alternate above, attached by a distinct slender stalk,
the margin crenated or inciso-orenato, except at tho cuneate base,
which is entire. Occasionally the pinnæ are equal-sided and
broadest at the base, much shortened and rounded at the apex ;
and sometimes they are more elongated and acute.
Venation consisting of a costa or midvein, producing forked veins
at the base of the pinnæ, and simple ones above. The veins and
venules tornnnate abruptly within the margin, the point of termination
being marked by an elevation on the upper surface.
Fructification more copious on the upper part of the frond, produced
on the anterior side of the vein ; opposite the furcation and
extending below it, if the vein is forked, and situated toward the
base, that is, near to the costa, if the veins are simple. Sori linear
oblique, indusiate, contiguous to the costa, and soon beooming
confluent. Indusium narrow, crenated on the free margin. Spore-
cases globose. Spores angular, rough.
Duration. The caudex is perennial. The fronds are produced in
spring, and remain fresh through the winter, so that the plant is
evergreen.
Though similar to A. Trichomanes, and associated with it by some
of our first botanists, this plant may he distinguished by its greeu
compressed raohis, which is not prominent and rounded behind, nor
furnished with a membranaceous border on the anterior face ; also by
the more central situation of the sori, which are placed rather below
than above the fork of the veins. It is, moreover, always of a much
paler green colour, and has a more deUoate herbaceous appearance.
The Green Spleenwort is found principally in the moist mountainous
rocky districts of the north of England and Scotland, widely
dispersed, and of frequent occurrence in congenial situations, but not
generally abundant. It is also not unfrequent in Wales, and is
found in Shetland. More southern stations are reported in the
provinces of the Severn, Trent, and Mersey ; but in these it is very
local. It has also been found located in somewhat dubious situations
in the counties of Sussex, Middlesex, Kent, and Surrey, in these
cases having probably escaped from cultivation. In Ireland it appears
to be a rare plant, though ooourring in the counties of Donegal, SUgo,
Cork, and Kerry. Mr. Watson records its greatest altitude above
the sea as being about 2860 feet. The recorded habitats are :—
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Channel.—Sussex: in the parapet wall of an old cellar window
at Danny, ten miles from Brighton, Rev. T. Rooper.
Thames.—Middlesex : wall near Arno’s Grove, Southgate, V. E.
Walker. Kent: wall at Maidstone, Plukenet. Surrey : old wall
at Miekleham, W. Borrer.
Severn.—Worcestershire: Ham Bridge, T. Westcombe. Staffordshire:
Dovedale.
Trent.—Derbyshire: Buxton, Dr. Wood; Cavedale, Castleton,
Pev. O. Finder; Dovedale. Leicestershire: Beacon HiU, Charley
forest, Pultency.
Mersey.— Cheshire: Carr-edge, Mr. Bradbury. Lancashire :
Dulesgate; Staley.
Humber.—Yorkshire; Settle, T. Wilcke; Craven (ramose form).
Rev. J. 8. Henslow; Ingleborough, Bolton; Gordale, P. Bowman;
near Ais-la-Beok, and Richmond, J. Ward; Widdal Fell, Wensleydale
; Ogden Clough, near Halifax, Bolton; Eeeth Moor, Swale-
dale ; Black Bank, near Leeds ; and many other parts.
Tyne.—Durham: Falcon CUnts, Teesdale, T. Simpson; Wear-
dale. Sir W. C. Trevelyan, Bart. Northnmherland: Banks of the
Irthing, Bev. P . Taylor.
ia/ces.—Westmoreland: rocks above Patterdale; Kendal Fell,
W. Christy; Hutton Roof; Farlton; Arnside, Rev. G. Finder;
Casterton F e ll; MazCoeckBaar, P. B. Boivman; Ambleside. Cumberland:
Ashness G ill; Borrow Force; Gillsland, Winch; Brandy
Gill, Carrick F e ll; Borrowdale, Miss Wright.
S. IKite.—BreoknooksMre : Brecon Beacon and Trecastle Beacon,
near Brecon; Chapel-y-Fin, T. Westcombe; Scwyd-yr-Henryd, near
Capel Colbren, E. Lees. GlamorgansMre: Mertbyr-Tydvil, C. C-
Babington; Cilhepste Waterfall, near Pont Nedd Yechn, Dilhcyn;
Darran-yr-Ogof, near Ystradgunlais, Dilhcyn.
N. Wales.—Merionethshire : Oader Idris, J. E. Bowman. Car-
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