less (lopaui)ci'atci! distant, doouiTont, and irregular in size, outline,
and toothing. I t ivas found hy (Mr. Elworthy, noar Ncttleconiho, in
Somersetshire. [Pluto XX IJ.—Eolio cd. t. X I I C.]
21. grandidens (M.). A very graooful varictjo Tho fronds aro of
moderate size, narrowly hut irregularly lanceolate, tho pinnæ hoing
of various lengths, though loss depauperated than in cither inter-
nqdutn (22), or dissimile (23), rvhich are noarly related forms. The
piimæ very frequently terminate abruptly, oithor in a fan-shaped
confluent leaflet, or in a leaflet resembling the ordinary pinnules.
Tho pinnules arc of different shapes—ovato, oblong, roundish, or
obliquely wodgo-shapcd, and aro very remarkable from the large
coarse dooplj’-out teeth of the margin (laoiniatc-dentatc), which arc
acuminatoly setaceous. "When fertile the pinnules in the upper part
of the frond often grow out into irregular sliaiqi-pointod divergent
angular lobos. The most marked forms of the variety produce very
narrow fronds, the pinnæ hoing all and nearly equally abhrcviatod,
tho pinnules small, wedge-shaped, with a few coarse angular tooth,
and the terminal ono larger and fan-shaped. Sometimes tho pinnules
aro all larger but of the same laeimato-dcntate character.
The host forms we havo seen wore found in—Devonshire : Totnes,
1Î. T’emeill. Somersetshire : Nettleoomhe, G. Ehcorthy—two forms,
one dwarfer than the other. Ireland : Killarney, S. Jervis. F e rmanagh
: Lisiiaskoa, Eec. W. E . Bailey. Other slightly varying
forms come from—Devonshire ; Totnes ; Barnstaple, C. Jachson.
Yorkshire : Ilolston Scar, B. Foxton—rather more unequal in the
pinnæ. Fermanagh, Her. 1Î. Ecoles-, hanks of Lough Erin, ite®.
W. B . Bailey. Antrim. [Plato XX B, and XXV A.]
22. interruptum (WoU.). This is a variety of remarkably irregular
growth. In its oharaoteristio state tho majority of tho pinnæ are
greatly abbreviated and more or less truncate or abrupt, sometimes
reduced to the size of ordinary pinnules, while here and there one of
full length is produced. These longer pinnæ usually have a portion
of their pinnules normal, or noarly so, in oharactor, oblong and
biserrate, while others aro reduced to half their size, and roundish
or ovate in outline without auricles, and wedge-shaped at tho base.
Tho abbreviated pinnæ have their pinnules changed to a roundish
or ovate form, v ith incised or laciniated margins. The apex of the
frond is caudate. I t is similar in general character to dissimile, but
differs in the more elongated form and loss setaceous teeth of thoso
pinnules which approach the normal character. I t has been found
in—Hampshire ; Fordingbridgo, G. B. Wollaston. Devonshire :
Ilfraoomhe, Rev. J . 31. Chanter—the pinnules generally more deeply
laoiniatc-toothcd. Killarney : Br. Kinahan—rather less toothed iu
the normal portions. Guernsey: J . James.
23. dissimile (M.). This plant in its normal parts resemhlos î«frr-
medium (17), having its pinnules ovato, and their segments biserrate
and more aristate than usual, and it is also proliferous ; bnt it differs
from tb a t variety in having its fronds froquontly much depauperated,
the pinnæ variously abbreviated, irregularly truncate, or multifid,
often here and there intermixed with one of normal outline ; tho pinnules
also arc very irregular in size and shape, often fan-shaped
or depauperatoly wedge-shaped. I t has, moreover, a hispid aspect,
arising from the abundant aristate tips of its serratures, and the
narrowness of the scales with which it is profusely covered. I t was
found near Tunbridge Wells, Kent, hy Mrs. Delves, and two or threo
similar forms have been gathered by Mr. Jackson, at Barnstaple,
Devonshire, and by Mr. James, in Guernsey. [Plato XXIV.]
24. supralineatum (M.). This variety, which requires further testing,
is hipinnate and apparently dwarfish. I t has tho pinnules
moro or less and variously depauperated, and variously incised, lohed,
or toothed, the teeth boing not unfrequontly rounded, and gonorally
wanting the usual seta. Tho peculiar feature of the variety is,
however, the presence on the upper side of the pinnules of an excurrent
membrane, sometimes forming a rib-like line, somotimos running
out into callous teeth. I t was found noar Barnstaple, Devonshire,
by Mr. G. Jackson.
25. incequale (M.). This is rather a neat-looking abnormal form,
the pinnules of which aro not much altered. Tho lower pinnæ are
short, giving the frond a lance-shapod outlino. The majority of the
pinnules are oblong-ovate, bluntish, with a terminal awm and an
anterior basal auriclo, as in the neat normal forms, but they are
here various in size, some boing broader, some narrower, and, in tho
npper part of the frond especially, variously misshapen and to some
extent depauperated. I t is the irregularity in the size and form of
: I
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