_fronds_ 1ft. to 2ft. long, 4in. to 8in. broad, oblong-lanceolate,
with twenty to thirty pinnæ on each side, which are 3in. to 4in.
long, about 1/2in. broad, acuminate, dentate, nearly or quite
sessile, the base cuneate. _sori_ very regular, reaching from
the midrib nearly to the edge. Mauritius, &c. There are several
forms of this species: those with small narrow cuneate pinnules,
_inequale_; those with deeply bifid or pinnatifid pinnules,
_bifida_. Stove species.
=A. longissimum= (longest).* _sti._ tufted, 3in. to 12in.
long. _fronds_ 2ft. to 8ft. long, 4in. to 8in. broad,
lanceolate-elongate, pendulous, proliferous, and rooting at the
apex, with very numerous pinnæ on each side, which are 2in. to 4in.
long, 1/4in. broad, acuminated, the two sides nearly equal, with a
distinct central midrib; edge slightly toothed, the base on both
sides often auricled. _sori_ numerous, in two regular rows on each
side the midrib, and reaching nearly to the edge. Malacca, &c.,
1840. A very distinct stove fern for baskets.
=A. lucidum= (clear). A synonym of _A. obtusatum lucidum_.
=A. lunulatum= (crescent-shaped).* _sti._ tufted, 2in. to 4in.
long. _fronds_ 6in. to 18in. long, 1-1/2in. to 2in. broad, simply
pinnate, narrowly lanceolate-oblong, with twelve to twenty pinnæ on
each side, which are 1in. to 1-1/2in. long, 1/4in. to 1/2in. broad,
bluntish or acute, more or less deeply inciso-crenate throughout,
the two sides unequal; the upper one on the base narrowed suddenly,
the lower one obliquely truncate; lower pinnæ often deflexed.
_sori_ falling short of both edge and midrib. Tropics. SYN. _A.
erectum_.
=A. l. Fernandesianum= (Fernandez).* A form with a more rigid
rachis and sub-coriaceous, rather narrower pinnæ. Juan Fernandez.
=A. macrocarpum= (large-fruited). _sti._ 6in. to 9in.
long. _fronds_ 12in. to 24in. long, 6in. to 12in. broad,
ovate-lanceolate, with numerous pinnæ on each side, the lowest
3in. to 6in. long, 1in. to 1-1/2in. broad, lanceolate; pinnules
oblong-rhomboidal, inciso-crenate or pinnatifid. _sori_ copious,
large. Himalayas. Greenhouse species. SYN. _Athyrium macrocarpum_.
=A. macrophyllum= (long-leaved). Synonymous with _A. nitens_.
=A. marginatum= (margined). _sti._ 2ft. to 3ft. long, strong, erect
woody, about 1/2in. thick at the base. _fronds_ simply pinnate,
4ft. to 6ft. long; pinnæ in several opposite pairs, the lowest 1ft.
to 2ft. long, 3in. to 4in. broad, the edge entire, the base often
cordate. _sori_ long, linear, confined to the free veins. Tropical
America. Stove species. SYN. _Hemidictyum marginatum_.
=A. marinum= (sea).* Sea Spleenwort. _sti._ tufted, 3in. to
6in. long. _fronds_ 6in. to 18in. long, 2in. to 4in. broad,
oblong-lanceolate, apex pinnatifid; pinnæ of the lower half quite
deltoid, the point acute or obtuse, margin crenato-dentate. _sori_
broad, falling short of the edge. Europe, including Britain.
Although perfectly hardy, this requires to be grown in a frame or
cool house.
=A. m. coronans= (crowned).* _fronds_ 4in. to 6in. long, simply
pinnate; pinnæ for two-thirds of the way up variable in form,
and irregularly lobed and cut; the upper third freely branched
with numerous imbricated, curled, and slightly crested divisions,
forming a dense head 2in. or more across. A dwarf and pretty form.
=A. m. crenatum= (crenated). _fronds_ 4in. to 8in. long,
broadly-lanceolate; pinnæ nearly trapeziform, obtuse, with deeply
crenated margins. A very pretty form.
=A. m. mirabile= (wonderful).* _sti._ 2in. to 4in. long. _fronds_
about the same length, the rachis divided about half way down from
the top into two nearly equal divisions, which are again freely
forked, with the pinnules and segments obtusely lobed; the whole
expanded, but not crested, into a breadth equal to the length of
the frond; the lower pinnæ are more or less abnormal and bluntly
lobed.
=A. m. plumosum= (feathery).* _sti._ 3in. to 4in. long. _fronds_
6in. to 15in. long, bi- or tripinnatifid, broadly-lanceolate;
pinnæ very variable, closely set, and imbricated, cut nearly to
the rachis into ovate or oblong divisions, which are again more or
less deeply cut and lobed, the entire frond having a very elegant
appearance.
=A. m. ramo-plumosum= (branched and feathery).* _fronds_ divided
nearly to the top of the stipes into two main branches, which are
distinctly pinnate; pinnæ distant below, imbricated upwards, cut
nearly to the rachis into ovate or oblong lobes, the margins of
which are slightly dentated. It is a very handsome form, the width
of the frond being greater than its length.
=A. m. ramosum= (branched). _fronds_ from 4in. to 8in. long,
branched at the apices; pinnæ oblong, with the margins
obtusely-dentate, and slightly undulated.
=A. m. sub-bipinnatum= (half-bipinnate). _fronds_ 6in. to 12in.
long, lanceolate; pinnæ distant, deeply lobed, or cut nearly to the
midribs. A very rare and pretty variety.
=A. m. Thompsonii= (Thompson's).* _sti._ 3in. to 4in. long, smooth.
_fronds_ 6in. to 10in. long, ovate-lanceolate, bipinnatifid; pinnæ
closely set, sub-deltoid, unequal-sided, deeply cut into oblong,
slightly undulated lobes below, gradually less divided upwards.
A very rare and handsome variety. All the forms of _A. marinum_
require a very moist atmosphere, consequently they will not thrive
in the open air, unless along the sea-coast.
=A. maximum= (largest). _cau._ erect. _sti._ 2ft. or more long.
_fronds_ several feet long, 2ft. to 3ft. broad, deltoid-lanceolate,
with numerous pinnæ on each side, the lowest 9in. to 18in. long,
4in. to 8in. broad; pinnules sub-sessile, 2in. to 4in. long, 3/4in.
broad; edge more or less lobed. _sori_ medial, the lowest two lines
long. North India. Stove species. SYNS. _A. diversifolium_ and
_Diplazium decurrens_.
=A. melanocaulon= (black-stiped).* _sti._ 1ft. to 2ft. long.
_fronds_ 2ft. to 3ft. long, 9in. to 18in. broad; lower pinnæ 4in.
to 9in. long, 4in. to 6in. broad; pinnules lanceolate, 2in. to 3in.
long, 3/4in. broad, cut down two-thirds of the way to the rachis
into linear-oblong, falcate, inciso-crenate lobes. _sori_ short,
oblong, not touching either midrib or edge. Fiji. Stove species.
SYN. _Diplazium melanocaulon_.
=A. Michauxii= (Michaux's).* _cau._ stout. _sti._ 4in. to
8in. long. _fronds_ 9in. to 24in. long, 3in. to 9in. broad,
ovate-deltoid, bi- or tripinnate; pinnules oblong, deeply serrate,
or cut quite to the rachis. United States. A very handsome hardy
species, closely related to the Lady Fern, of which it may be only
a variety.
=A. monanthemum= (one-flowered).* _sti._ densely tufted, 3in. to
6in. long. _fronds_ 12in. to 18in. long, about 1in. broad, with
twenty to forty horizontal, sessile, sub-dimidiate pinnæ on each
side, which are about 1/2in. long and 1/4in. deep, the upper side
crenate, suddenly narrowed at the base, the lower more or less
distinctly cut away in a straight, or, in the lower pinnæ, decurved
line. _sori_ linear-oblong, usually one or two, parallel with the
lower edge of the pinnæ. Temperate regions of both hemispheres.
Greenhouse species.
=A. montanum= (mountain).* _sti._ tufted, 2in. to 3in. long.
_fronds_ 2in. to 3in. long, 1in. broad, lanceolate-deltoid; lowest
pinnæ distinctly stalked, deltoid, sharply serrated round the
outer edge. _sori_ short, copious. United States, 1812. Frame or
greenhouse species.
=A. multisectum= (much-cut). Synonymous with _A. aspidioides_.
=A. musæfolium= (Musa-leaved). A variety of _A. Nidus_.
=A. myriophyllum= (myriad-leaved). A variety of _A. rhizophyllum_.
[Illustration: FIG. 172. ASPLENIUM NIDUS.]
=A. Nidus= (nest).* Bird's-nest Fern. _fronds_ undivided, 2ft. to
4ft. long, 3in. to 8in. broad, lanceolate, acute or acuminate at
the apex, tapering gradually below into a short stem; the edge
entire, the midrib rounded on the back; veins fine and parallel,
about 1/2in. apart. _sori_ reaching about half way towards the
margin. India, &c., 1820. SYN. _A. australasicum_. See Fig. 172.
=A. N. australasicum= (Australian). Midrib keeled on the back,
often black. Australia, &c. The two former are best treated
in the stove; the latter thrives well in the greenhouse. SYN.
_Thamnopteris australasicum_.
=A. N. musæfolium= (Musa-leaved).* _fronds_ larger, sometimes 6ft.
long, 1ft. broad. _sori_ extending nearly to the edge.
=A. nitens= (shining). _sti._ scattered, 6in. to 9in. long.
_fronds_ 1-1/2in. to 2in. long, 6in. to 9in. broad, with twelve to
twenty ascending or sub-falcate pinnæ on each side, which are 4in.
to 6in. long, 1/2in. to 1in. broad, much acuminated; edge finely
toothed, base broadly rounded on the upper, truncate in a curve
on the lower side. _sori_ in close regular rows, not extending
more than half way from the midrib to the edge. Mauritius. Stove
species. SYN. _A. macrophyllum_, of gardens only.
=A. nitidum= (shining).* _sti._ 1ft. long, naked. _fronds_ 2ft.
to 3ft. long, 6in. to 12in. broad, with many lanceolate-deltoid
pinnæ on each side, which are cut down to the rachis into numerous
stalked deltoid pinnules, these are again cut into broad fan-shaped
cuneate segments, sharply serrated round the outer edge. _sori_
short. North India, Ceylon, &c. Greenhouse species.
=A. novæ-caledoniæ= (New Caledonian).* _sti._ tufted, 6in. to
12in. long. _fronds_ 9in. to 12in. long, 6in. to 9in. broad,
sub-deltoid, tripinnate; lower pinnæ and pinnules deltoid; segments
rigid, scarcely flattened, 1/2in. or more long, distant, and
erecto-patent. _sori_ long, linear, marginal. New Caledonia. A rare
greenhouse species. SYN. _Darea novæ-caledoniæ_.
=A. obtusatum= (obtuse). _sti._ tufted, 3in. to 6in. long. _fronds_
6in. to 12in. long, 3in. to 4in. broad, oblong or ovate-deltoid,
with a terminal pinna not much longer than the others, and two
to six pairs on each side, which are 1in. to 2in. long and about
1/2in. broad, obtuse, edge crenate, the base truncato-cuneate,
shortly stalked. _sori_ copious, broad, linear-oblong, falling
short of the edge. Peru. _A. difforme_ is a variety with
an ovate-deltoid frond, and the pinnæ cut quite down to a
narrow-winged rachis in the lower part into distinctly separated
roundish or oblong-sinuated pinnules. New Zealand, Australia, &c.
Greenhouse kinds.
=A. o. lucidum= (clear).* _fronds_ often 2ft. long, with fifteen
to twenty pairs of pinnæ on each side, which are more herbaceous
in texture, darker green in colour, the lowest 6in. long, 1in. to
1-1/2in. broad, narrowed gradually to a long acuminated point, edge
more deeply toothed. Greenhouse variety. SYN. _A. lucidum_.
=A. obtusifolium= (obtuse-leaved).* _sti._ almost tufted, 6in.
to 9in. long. _fronds_ 12in. to 18in. long, 4in. to 6in. broad,
ovate-lanceo-late, with twelve to twenty stalked horizontal
pinnæ on each side, which are 2in. to 3in. long, 1/2in. to 3/4in.
broad, acute; edges slightly undulato-crenate, the upper side with
a distinct auricle at the base, and then narrowed suddenly, the
lower side obliquely truncate. _sori_ distant, in two regular rows,
falling short of the edge. West Indies, &c., 1838. Stove species.
=A. obtusilobum= (obtuse-lobed).* _sti._ tufted, 2in. to 4in.
long. _fronds_ 4in. to 6in. long, 1-1/2in. to 2in. broad, with
nine to twelve sub-deltoid pinnæ on each side, of which only the
inner third on the lower side is cut away, the largest nearly 1in.
long, 3/4in. broad; lowest pinnules 3/8in. deep, flabellately cut
into three to five linear blunt lobes. _sori_ sub-marginal. New
Hebrides, 1861. A very pretty little stove species. SYN. _Darea
obtusiloba_.
=A. odontites= (much-toothed). Synonymous with _A. flaccidum_.
=A. oxyphyllum= (sharp-leaved).* _sti._ firm, 6in. to 12in. long.
_fronds_ 1ft. to 2ft. long, 6in. to 12in. broad, lanceolate, with
several pinnæ on each side, which are 3in. to 6in. long, 1in.
to 2in. broad; pinnules lanceolate, in the larger forms again
pinnatifid; teeth mucronate. _sori_ in two rows on the pinnæ or
pinnules midway between the midrib and edge. Himalayas. A very
variable greenhouse species. SYNS. _Athyrium oxyphylla_ and
_Lastrea eburnea_.
=A. paleaceum= (scaly).* _sti._ densely tufted, 1in. to 3in. long,
spreading, densely scaly. _fronds_ 6in. to 9in. long, 1-1/2in. to
2in. broad, sometimes proliferous and rooting at the apex, with
twelve to twenty sub-sessile pinnæ on each side, which are 1in.
long, about 1/2in. broad, bluntish; edge inciso-dentate, the upper
base auricled and narrowed suddenly, the lower obliquely-truncate;
the lower ones stalked, and nearly as broad as long. _sori_ linear,
extending nearly to the edge. Tropical Australia. Stove or warm
greenhouse species.
=A. palmatum= (palmate). Synonymous with _A. Hemionitis_.
=A. parvulum= (small). Synonymous with _A. trilobum_.
=A. persicifolium= (Peach-leaved). _sti._ and _rachis_ grey, with
a few scattered minute grey scales. _fronds_ oblong-lanceolate,
2ft. to 3ft. long, often gemmiferous at the apex; pinnæ ascending,
fifteen to thirty-jugate, sub-petiolate, 4in. to 5in. long,
linear-ligulate-acuminate, 1/2in. to 3/4in. broad, distinctly
crenate throughout. _sori_ regular, reaching nearly to midrib and
edge. Philippine and Sandwich Isles. Stove species.
=A. Petrarchæ= (Petrarch's).* _sti._ densely tufted, 1in. to 2in.
long. _fronds_ 2in. to 3in. long, 1/2in. broad, linear-lanceolate,
with six to ten horizontal sessile pinnæ on each side, which are
1/4in. long and nearly as much broad, cordate-ovate, blunt; edge
sinuated; the base unequal, slightly truncate on the lower side.
_sori_ oblong, very short, four to six on each side of the midrib.
South Europe, 1819. A very rare little gem, best treated in a cool
house.
=A. pinnatifidum= (pinnatifid). _sti._ tufted, 2in. to 4in. long.
_fronds_ 3in. to 6in. long, 1in. or more broad at the base,
lanceolate-deltoid, with a long, gradually narrowing point, which
is sinuated only; the lobes below this 1/4in. to 1/2in. deep; the
lowest ovate-oblong, 1/2in. deep by nearly as broad, sinuated and
reaching down nearly to the rachis. _sori_ copious. Pennsylvania.
Greenhouse or sheltered places outside.
=A. planicaule= (flat-stiped).* _sti._ tufted, 3in. to 6in. long,
naked. _fronds_ 6in. to 12in. long, 2in. to 3in. broad, with
twelve to twenty stalked horizontal pinnæ on each side, which are
1in. to 1-1/2in. long, 1/4in. to 3/8in. broad, acute; edge lobed
about half-way down, and deeply serrated. _sori_ copious, reaching
nearly to the edge. Himalayas, up to 6000ft., &c., 1841. Greenhouse
species.
=A. plantagineum= (Plantain-like). _sti._ tufted, 6in. to 9in.
long. _fronds_ 6in. to 9in. long, 2in. to 3in. broad, simple,
acuminate, base rounded; edge slightly undulato-dentate upwards,
sometimes lobed towards the base. _sori_ slender, linear, sometimes
nearly touching both edge and midrib. West Indies, &c., 1819. Stove
species. SYN. _Diplazium plantagineum_.
=A. polyphyllum= (many-leaved). Synonymous with _A. acuminatum_.
=A. præmorsum= (bitten). Synonymous with _A. furcatum_.
=A. prolongatum= (prolonged). Synonymous with _A. rutæfolium_.
=A. pulchellum= (pretty).* _sti._ tufted. 1in. to 2in. long.
_fronds_ 3in. to 6in. long, 1in. to 1-1/2in. broad, with twelve to
eighteen pinnæ on each side, which are 1/2in. to 3/4in. long, two
lines to three lines broad, bluntish, almost dimidiate; the upper
edge crenate, and narrowed suddenly at the base. _sori_ linear,
oblique, falling short of the edge. Tropical America. Stove species.
=A. pumilum= (small). _sti._ tufted, 3in. to 4in. long. _fronds_
4in. to 6in. each way, deltoid, the upper part sinuated only, the
lower cut down to the rachis into distinct pinnæ, of which the
lowest pair are much the largest; the pinnules on the lower side
sometimes 2in. long, reaching down to a slightly winged rachis,
acuminate and deeply lobed. _sori_ very oblique, the lower ones
sometimes 1in. long. West Indies, &c., 1823. A very rare and pretty
stove species.
=A. rachirhizon= (rachis-rooting). A variety of _A. rhizophorum_.
[Illustration: FIG. 173. ASPLENIUM RADICANS.]
=A. radicans= (rooting). _cau._ erect, sub-arborescent. _sti._
1ft. to 2ft. long, tufted. _fronds_ 3ft. to 5ft. long, 2ft. to
3ft. broad, deltoid; lower pinnæ 12in. to 18in. long, 6in. to 8in.
broad; pinnules lanceolate, sessile, the upper ones entire, lower
ones 3in. to 4in. long, 3/4in. to 1in. broad, with blunt lobes,
1/4in. broad, reaching about half way down to the rachis. Lower
_sori_ sometimes 1/4in. long. Tropical America. A very variable
species. SYNS. _A. giganteum_, _Diplazium radicans_, _D. umbrosum_,
&c. See Fig. 173.
=A. refractum= (refracted). A variety of _A. fontanum_.
=A. resectum= (cut or pared).* _sti._ scattered, 4in. to 8in. long.
_fronds_ 6in. to 15in. long, 2in. to 4in. broad, lanceolate-oblong,
with ten to thirty sub-sessile horizontal pinnæ on each side, which
are 1in. to 3in. long, 1/4in. to 1/2in. broad, almost dimidiate,
the point bluntish, all except the truncate part crenate, the upper
half at the base narrowed nearly at a right angle. _sori_ not
reaching either the midrib or edge. India, &c., widely distributed,
1820. Greenhouse species.
=A. rhizophorum= (root-bearing).* _sti._ tufted, 4in. to 8in.
long. _fronds_ 1ft. to 2ft. long, 4in. to 6in. broad, elongated,
and rooting at the apex; pinnæ twelve to thirty on each side,
sub-sessile, 1-1/2in. to 2in. long, about 1/2in. broad,
inciso-dentate throughout; the two sides unequal, the upper one
auricled and narrowed, the lower one obliquely cuneate. _sori_
not reaching either to the edge or midrib. Tropical America. A
very variable stove species. _A. r. rachirhizon_, has distinctly
separated oblong-rhomboidal pinnules, again deeply cut into narrow
segments.
=A. rhizophyllum= (leaf-rooting). _sti._ tufted, 2in. to 6in. long.
_fronds_ 6in. to 12in. long, 1-1/2in. to 2in. broad, cut down into
numerous close-placed horizontal pinnæ on each side; central ones
1in. long, 1/4in. to 3/8in. broad, cut down throughout nearly to
the centre into simple or forked erecto-patent pinnules, the lowest
on the under side suppressed. _sori_ solitary, sub-marginal. _A.
r. myriophyllum_ is a variety with broader fronds; central pinnæ
1-1/2in. long, with lower pinnules cut down into several simple or
forked linear segments. North America, &c., 1680. Both handsome
greenhouse kinds.
=A. rutæfolium= (Rue-leaved).* _sti._ tufted, 4in. to 9in. long.
_fronds_ 6in. to 15in. long, 2in. to 4in. broad, ovate deltoid,
with twelve to twenty pinnæ on each side, the lowest sub-deltoid,
2in. or more long, cut down to the rachis into numerous
erecto-patent distant pinnules on each side, the lowest on the
upper side again cut down into erecto-patent linear segments.
_sori_ small, marginal. Cape Colony. A beautiful greenhouse
species. SYNS. _A. prolongatum_ and _Darea rutæfolia_.
=A. Ruta-muraria= (Wall-rue).* _sti._ tufted, 2in. to 4in. long.
_fronds_ 1in. to 2in. long, about 1in. broad, deltoid, cut down to
the rachis into a few pinnæ on each side, the lower ones again cut
down into spathulato-cuneate pinnules, which are serrated round the
outer edge. _sori_ copious. Great Britain, and almost worldwide
in its distribution. Hardy species. This requires a well-drained
position, and a soil composed mainly of old mortar rubbish.
=A. salicifolium= (Willow-leaved). _sti._ tufted, 6in. to 12in.
long. _fronds_ 12in. to 18in. long, 6in. to 9in. broad, oblong,
with a terminal pinna and four to ten distinctly stalked ones on
each side, which are 4in. to 6in. long, 3/4in. to 1in. broad,
acuminate; edge usually entire, the base equally truncato-cuneate
on both sides. _sori_ falling short both of the edge and midrib.
West Indies, &c. Stove species.
=A. Sandersoni= (Sanderson's).* _sti._ tufted, 1in. to 2in. long.
_fronds_ 6in. to 9in. long, 1/2in. to 3/4in. broad, linear, often
gemmiferous at the apex, with twelve to twenty horizontal dimidiate
pinnæ on each side, which are deeply crenate on the upper edge, and
at the base narrowed suddenly into a winged petiole, the lower one
nearly straight and quite entire. _sori_ oblong. Natal, &c. A very
rare greenhouse species.
=A. schizodon= (cut-toothed). Synonymous with _A. Vieillardii_.
=A. Schkuhrii= (Schkuhr's). _cau._ erect. _sti._ 1ft. to 1-1/2ft.
long. _fronds_ deltoid, 1-1/2ft. to 2ft. long, tripinnatifid; lower
pinnæ distant, oblong-lanceolate, 6in. to 8in. long, 1-1/2in. to
2in. broad, rachis winged to base; pinnules ligulate-oblong, 3/8in.
broad, sessile, cut into shallow, close, oblong blunt lobes. _sori_
1/8in., medial in a single row in the pinnules. Ceylon. Stove
species. SYN. _Diplazium Schkuhrii_.
=A. Selosii= (Selose's).* _sti._ densely tufted, 1in. to 2in. long,
wiry. _fronds_ 1/2in. to 3/4in. long, palmately cleft, usually into
three nearly equal forks, which are about one line broad, the edge
slightly inciso-serrate. _sori_ copious, ultimately occupying the
whole surface. Tyrol and Carinthia. A very rare and curious little
species, requiring the protection of the frame or cool house;
it should be firmly potted between pieces of sandstone in loam,
leaf-soil, rock chippings and sand, with good drainage.
=A. septentrionale= (northern).* _sti._ densely tufted, 3in. to
4in. long. _fronds_ simple, or cleft from the apex into two or
three cuneate divisions, 1in. to 1-1/2in. long, one line broad,
with a few sharp lateral and terminal teeth. _sori_ elongated,
copious, often at last hiding the whole under surface. Great
Britain, and widely distributed in both hemispheres. This rare
little species requires to be securely planted in a well-drained
elevated chink of the fernery outside, in loamy, gritty soil.
=A. Shepherdi= (Shepherd's).* _sti._ tufted, 1ft. long. _fronds_
12in. to 18in. long, 6in. to 9in. broad; lower pinnæ stalked, 4in.
to 6in. long, 1in. to 1-1/2in. broad, point acuminate, edge lobed
above, 1/4in. broad, somewhat toothed. _sori_ linear, not reaching
the edge. South America. Stove species. SYN. _Diplazium Shepherdi_.
=A. S. inæquilaterum= (unequal-sided). _fronds_, texture firm,
colour duller than that of the type; pinnæ much acuminated; the
lobes deeper, more uniform, and falcate, the two sides unequal, the
lower one unequally truncate at the base.
=A. spathulinum= (spathulate). A synonym of _A. affine_.
=A. spinulosum= (very spiny).* _sti._ 6in. to 12in. long,
scattered. _fronds_ 9in. to 12in. each way, deltoid, tri- or
quadripinnatifid, with nine to twelve pinnæ on each side, the
lowest much the largest, 6in. to 9in. long, 2-1/2in. to 3in. broad,
ovate-lanceolate; pinnules lanceolate, cut down to the rachis on
each side into six to nine oblong-rhomboidal mucronate segments,
two lines long, one line broad, which are sharply toothed. _sori_
two to ten to a segment, usually round, but occasionally oblong.
Amur-land, &c. Greenhouse species. SYN. _Athyrium spinulosum_ and
_Cystopteris spinulosa_.
=A. splendens= (splendid). _rhiz._ creeping, scaly. _sti._ 6in. to
9in. _fronds_ deltoid, 6in. to 1ft. long, two to three-pinnate;
lower pinnæ stalked, deltoid, 1in. to 2in. broad, pinnate or
bipinnate; segments cuneate-flabellate, 1/4in. to 1/2in. broad,
slightly lobed, sharply toothed round outer edge. _sori_ copious,
slender, irregular, reaching from base nearly to tip of segments.
Cape Colony. A very rare greenhouse species.
=A. subsinuatum= (half-waved). Synonymous with _A. lanceum_.
=A. sundense= (Sundanese). Synonymous with _A. vittæforme_.
=A. sylvaticum= (woods). _cau._ decumbent. _sti._ 1ft. long.
_fronds_ 1ft. to 2ft. long, 4in. to 8in. broad, ovate-lanceolate,
with numerous spreading pinnæ, the largest 3in. to 4in. long,
1/2in. to 3/4in. broad, acuminated; edge broadly and briefly lobed;
base narrowed suddenly on both sides. _sori_ in long slender lines,
reaching nearly to the edge. India, &c. Stove species.