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lanceolate; lowest pinnl. scarcely free, the largest about J in. 1., J in. br., cut
from one-third to halfway down to the rachis below.—L. collina, Newm.—
e, lepidota, Woore ; rachises chesnut-hrown, s c a ly ;/® , su bde itoid; lower pinnce
deltoid, 6-6 in. each way ; lowest pinnl. much the largest, often 3 in. ? 2 in. hr.,
its segm. cut down to tlie rachis below and with lohes again deeply pinnatifid.—■
m . Sp. 4. p . 127.
Hab. Arctic Europe and America southward to Madeira, the Mediterranean, W.
Himalayas, and Carolina, and found also sparingly in Bourbon and Cape Colony.—A
very variable plant. Var. y is the most distinct form, and from this a recedes in the
direction of N. cristatum, and y towards Filix-mas. The common N. American form
(A. intermedium, Muhl.) has an oblong-lanceolate frond and pale scales, but is generally
larger and more finely cut than our typical plant. L. glandulosa, Newm., is most like/I,
but the scales are few and pale, and tbe frond is narrower, with the under side more distinctly
glandular.
92. N. (Last.) Eatoni, Baker ; S t . 1 ft. 1., stramineous, clothed copiously with
squarrose purplish fibrillose scales ; f r . 12-18 in. 1., 6-9 in. hr., ovate-lanceolate ;
upper pinnae lanceolate, lowest jiair subdeitoid, 4-5 in. 1., 2-3 in. br. ; pinnl,
lanceolate, close, cut down nearly or quite to the rachis into close, blunt, subentire,
linear-oblong lobes ; texture herbaceous ; rachis stramineous and fibrillose
like the stem ; under side slightly villose and glandular ; sori small, copious ;
gland-eiliated.
Hab. Kakeah and Loo Cboo Isles, E. Asia, C. Wright.—Habit and cutting of JV. dilatatum,
from which it differs by its dense fine spreading hair-like scales and slightly
villose rachises and under surface.
93. N. (Last.) mexicanum, Hk. ; st. tufted, 12-18 in. 1., stramineous, scaly
towards the base ; f r . 1-2 ft. 1., 6-12 in. hr., ovate-lanceolate ; pinnm lanceolate,
3-6 in. l |- 2 in. hr., the divisions sometimes spathulate, not cut down quite to
the rachis and nearly entire, but more u sua lly the lower ones free, subdeitoid,
and deeply pinnatifid ; texture firm, herbaceous*; colour pale-green ; rachis and
both surfaces naked ; sori in rows about midway» between the edge and midrib ;
invol. naked, conspicuous.—H k . Sp. 4. p . 138. t. 267. A. leptorachis, Kse.—■
p, A . chaerop/iylloides, Moritz. ; more compound, lower pinnæ sometimes 9-12
in. 1., 3-4 in. br. ; pinnl. lanceolate, cut down nearly to the rachis into oblong
crenated lobes.
Hab. West Indies and Mexico to Brazil aud Ecuador.—The involucres are sometimes
orbicular and peltate. There is a wide range in cutting between the extremes, ? resembling
the larger forms of Filix-mas.
94. N. (Last.) sparsum, Don ; St. tufted, 6-12 in. 1., scaly only towards the
base, stramineous and glossy upwards ; f r . 1-2 ft. 1., 8-12 in. hr., ovate-lanceolate
; loweai pinnæ the largest, 4-6 in. 1., l |- 2 in. br. ; lowest ?»«««/. sometimes
compound, the others lanceolate, unequal-sided, pinnatifid, with oblong, blunt
lobes ; texture firm, herbaceous ; raehis naked or slightly scaly, both sides
naked ; colour pale-green ; sori usually one to each lobe near the midrib ; invol.
naked, flat, 1 lin. br.— N. purpurascens, H k . Sp. 4. p . 132. t. 262.
Hab. N. India to N. China, Ceylon, and Malay Isles ; Mauritius.—This species
resembles the last, and rivals it in range of size and cutting. Mettenius regards
A . purpurascens, Blume, as distinct, characterized by being more rigid in texture, with
divisions not so unequal-sided and the frond larger and more divided. L. deltoidea,
Beddome, t . 248, from Ceylon, has subdeitoid fronds and pinnules J-f in. br.
95. N. (L a st.) zmdulatum. Baker ; st. tufted, 6-12 in. 1., scaly towards the
base, glossy, and stramineous upwards ; f r . 1 ft. or more 1., 6-8 in. br., ovate-
deltoid, the main rachis very distinctly zigzag, the pinnæ deflexed and tlieu
curved upwards, imbricated, subdeitoid, the lowest pair the largest, 4-6 in. I.,
2-8 in. b r . ; secondary and tertia ry rachises also zigzag ; lower pinnl. suhdeltoid ;
segm. 2-3 lin. hr., ovate-rhomboidal or pinnatifid ; both sides naked ; colour pale-
green ; sori large, 3-4 to the lower segm. near the midrib.—Aspid. Thwaites.
Lastrea, Beddome, t. 271.
Hab. Ceylon, 0. P. 3868.—Perhaps not distinct from the last, with which it agrees,
except in the peculiar zigzag rachises.
96. N. (Last.) deparioides, H k . ; st. 1 ft. or more 1., firm, slightly scaly
below ; f r . lJ -2 ft. 1., 8-10 in. hr., ohlong-lanceolate ; lower pinnæ 4-6 in. 1.,
2 in. hr., lanceolate, cut down to the rachis below into unequal-sided, stalked,
deltoid pinnl. with broad, blu n t subquadrangular lower lobes^ and prominent
teeth ; texture herbaceous ; rachis and both surfaces naked ; sori terminal in the
teeth,’which the convex involucres quite conceal.—H k . Sp. 4 .p . 139. Fil. Ex.
t. 3. Diclosodon, Moore.
Hab. Ceylon and S. India.—Teeth very distinct and sori quite terminal, so the plant
resembles Deparia, a character quite unique in the genus.
97. N. (Last.) Thwaitesii, Baker ; St. 1 ft. or more 1., slender, stramineous,
slightly scaly below ; f r . 12-18 in. L, 6-8 in. br., lanceolate-deltoid ; pinnæ
lanceolate, 3-4 in. 1., I J in. br. ; pinnl. distant, subdeitoid, unequal-sided,
slightly bluntly lobed below», obliquely truncate a t the base on the lower side ;
colmr pale-green ; texture herhaceous ; rachis and both sides quite naked ; sori
small, quite marginal ; invol. naked.—A. concinnum, Thwaites {non Mett.).
Hab. Ceylon.—Very like the last in outline, but quite different in fruit.
98. N. (Last.) sphærocarpum, H k . ; st. 6 in. 1., slender, stramineous, clothed
below with a few lanceolate scales ; f r . 12-18 in. 1., 6-8 in. hr., ovate-lanceolate ;
lower pinnæ 3-4 in. L, 2 in. hr., lanceolate-deltoid ; pinnl. lanceolate, cut down to
the rachis below into small oblong toothed lobes ; texture herbaceous ; rachis
stramineous, slightly scaly ; both surfaces naked ; sori mostly solitary a t the
base of the lobes; invol. large, reniform, membranous. — / / / . Sp. 4. p . 189.
Athyrium, Fée.
Hab. Mexico.—Thinner in texture than JV. mexicanum, and the fruit different.
99. N. (Last.) cethamanticum, H k . ; sf. tufted, stout, stramineous, 1 ft. 1.,
clothed at the base with large concolorous linear scales ; f r . 1-2 ft. 1., 6-9 in. hr.,
oblong-lanceolate; pinnæ imbricated, the lower ones 4-6 in. 1., 2-8 in. hr., the
pinnl. cut down to the rachis below into blu n t oblong-rhomboidal lobes ; texture
subcoriaceous ; colour pale-green, the stramineous rachis and both sides naked ;
immersed, copiously pinnate in the lower lobes ; sori close to the midrib ;
'. large, persistent.—H k . Sp. 4. 0. 126. t. 268.
Hab. Cape Colony to Natal and Angola.—Most like JV. sparsum in texture, but more
divided.
100. N. (Last.) i n a e q u a l e , H k . ; S t . 1 ft. or more 1., with a dense tu ft of
reddisli-brown lanceolate scales a t the base and a few u pw a rd s; f r . 1-2 ft. b,
ra th e r shorter and 8-12 in. hr., ovate-deltoid ; lower broader th an tlie
next, which are 6-8 in. 1., 2-8 in. br. ; p innl. lanceolate, cut down nearly to the
rachis into oblong spinoso-serrated segm.; texture herbaceous; colour dark-
green ; rachises and both surfaces nearly naked ; sori in two rows near the
midribs ; mvol. firm, naked.—H k . Sp. 4. p. 125.
Hab. Cape Colony and Natal.—Intermediate in habit between N. spinulosum and tbe
large forms of Filix-mas.
101. N. (Last.) FalconeH, Hk. ; st. 1 ft. L, densely clothed throughout with
concolorous scales, varying from ovate to subulate ; f r . lJ -2 ft. 1., 8-10 in. hr.,
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