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scaly below, ebeneous ; f r . 2-3 ft. 1., 9-12 in. bi-., the point pinnatifid, with 12-20
p innæ on each side, the lower ones 2 in. or more apart, distinctly stalked, 4-6
in. 1., 1 -1 | in. hr., the point acuminate, the edge slightly toothed, and sometimes
broadly lobed below, the base equally rounded on both sides ; texture th in ly
herbaceous ; colour deep-green ; rachis firm, erect, naked ; veins pinnated, pellucid,
about 6 a t tlie edge to a group ; sori irregular, falling slightly short of
both midrib and edge.'—iCJc. Sp. 3. p . 241.
Hab. Cuba to Ecuador and Brazil, and we cannot distinguish a plant from the Ladronee
gathered by Capt. Carmichael.—The sori are sometimes scarcely at all double, and then
this comes near A. oUgophyllum.
214. A. (Dipl.) flavescens, Mett. ; S t . 1 ft. or more 1., firm, erect, brownish,
nearly nilked ; f r . 2-3 ft. 1., 9-18 in. hr.,, with a large terminal and 10-16 lateral
pinnæ, the lower ones sessile or slightly stalked, 4-8 in. 1., lJ -2 in. hr., the
point acuminate, the edge subentire or slightly toothed, the base narrowed or
rounded equally on both sides ; texture papyraceous or subcoriaceous ; colour
bright-green ; rachis firm, erect, naked ; veinlets dark-green, 3-4 in a group ; sori
falling slightly short of both edge and margin.—A. juglandifolium, H k . Sp. 3.
p . 242. F il. F x . t. 242 {not Lam.).
Hab. Cuba southward to Peru.—A larger and usually more coriaceous phant than the
last, with a sub-arborescent caudex. A. Èoemerianum, Kze., and A. crassidens, Fée, do
not seem clearly separable. A. nicotianoefolmm, Mett., differs by having the raohis and
veins beneath coated with .short ferruginous down.
216. A. (Dipl.) rhoifoliim, Mett. ; st. firm, erect, 1 ft. h, naked ; f r . 2-3 ft. I.,
12-16 in. br., with a pinnatifid apex and 10-20 p innæ on each side, the lowest
on stalks J in. 1., the pinna 6-8 in. 1., J-1 in. br., the apex acuminate, the edge
subentire, the base on both sides rounded ; texture subcoriaceous ; rachis and both
sides naked ; veins 6-6 in a cluster, the strri reacliing n early to the edge ; invol.
narrow, th in .—Mett. Aspl. p. 178.
Hab. New Granada.—J . Triance, Mett. Fil. N. G. p. 233, is said to differ from this hy
its opposite pinnæ with a cordate base and toothed involucre. This has the texture of
A. cdtidifolmm, but the pinnæ are more numerous and narrower, with the fruit prolonged
almost to the edge.
216. A. (Dipl.) celtidifolium, Kunze ; si. strong, erect, 1 ft. or more I., brownish,
paleaceous below ; f r . 2-4 ft. 1., 9-18 in. br., with a pinnatifid apex and numerous
pinnæ on each side, the lower ones distinctly stalked, 6-9 in. ]., lJ - 2 in. hr., the
point, acuminate, the edge subentire or slightly toothed, sometimes with short
b lu n t lobes J in. deep, the base rounded or cordate on both sides ; texture subcoriaceous
; rachis firm, often slightly fibrillose ; veins pinnated, the same colour
as the frond, 4-6 in a group ; sori beginning a t the midrib, b u t falling short of
the edge.—H k . Sp. 3. p . 240.
Hab. Cuba and Columbia to Ecuador and Brazil.—D. ci-ermlana, Fée, from Guadeloupe,
is probably a form. Our specimen has coriaceous pinnæ bluntly lobed throughout
to a depth of ^ in., and 8-10 veins in a group. The Javan and Philippine A. Lobhianum
(Hk. Sp. 8. p. 244 ; 2nd Cent. t. 17) agrees with this very nearly ; and a specimen from
Mettenius of A. neglectum, Karst., differs only by the pinnæ being subcuneate at the
217. A. (Dipl.) sylvaticum, Presl ; caud. decumbent ; st. 1 ft. 1., firm, erect,
brownish, naked, scaly a t the base ; f r . 1-2 ft. 1., 4-8 in. hr., ovate-lanceolate,
with numerous spreading pinnm, the largest 3-4 in. 1., J - J in. hr., the point
acuminated, the edge broadly lobed to a depth of J-1 lin., and the base narrowed
suddenly on both sides ; texture th in , herbaceous ; rachis firm, erect, naked ;
'ns fine, pinnated in the lobes, 5-7 to a group ; sori in long slender lines reach-
; nearly to the edge. ~ H k . Sp. 3. p. 248. {in part) Beddome, t. 161.
Hab. Mauritius, Fernando Po, Neilgherries, Ceylon, Malayan Peninsula, Java, Borneo,
Samoa.—Of forms included here differing slightly from the type, the Malayan A. Prescoti-
ianum, Wall,, has the pinnæ rather more deeply lobed towards the base in the lower
part of the frond ; the Ceylonese A. elatum, Mett. (C. P. 1849), and a similar plant from
the Sandwich Islands and Borneo, have them lobed throughout to a depth of J in., the
lobes subangular and toothed ; D. proliferum, Brack., from Tahiti, is s.aid to have oblong-
lanceolate bluntly-serrated pinnæ, auricled on the upper and truncate on the lower side
at the base ; and we cannot separate clearly the American A. Ottonis and mutilum.
** P in næ more deeply lohed, generally from h a lf to two-thirds ofth e way down to
the racliis in the lower pa rt. Sp. 218-235.
218. A. (D ip l.) Wichuræ, Mett. ; rhizome firm, wide-creeping ; St. J - J in.
apart, 6-12 in. 1., stramineous, slightly scaly a t the base ; f r . 1 ft. or more 1.,
6-8 in. br., with numerous b » «® on each side, the lower ones stalked, 3-4 in. 1.,
J - J in. hr., the point acuminate, the edge tootlied, sometimes lobed, auricled near
the base on the upper side, obliquely truncate on tlie lower side ; texture herbaceous
; veins pinnate in the lohes ; sori not reaching the edge.—Mett. Fil. In d . 2.
p . 237.
Hab. Japan.—Very near the next in size and cutting, but the rhizome decumbent
and elongated.
219. A. (Dipl.) arhareum, Willd. ; st. tufted, 6-9 in. 1., firm, erect, greyish,
scaly below ; f r . 12-18 in. 1., 6-8 in. hr., with numerous pinnæ on each side,
the lower ones stalked, 3-4 in. 1., J - J in. hr., the point acute or acuminate, the
edge b lu n tly but not deeply lobed, except a t the base on the upper side, where
there is either a distinct auricle or a lobe, wliich sometimes reaches down to
the rachis, the lower side narrower th an the upper, and very obliquely tru n cate
a t the base ; texture herbaceous ; veins jiiiiiiate in the lobes ; sori falling
considerably short of the edge.—Hk. Sp. 3. p . 246. D. auriculatura, Kaulf.
Hab. West Indies aud Venezuela.—Willdenow named this nnder a wrong impression
as to the habit, which is not arboreous. I t comes very near the next, but is less deeply
lobed and more distinctly auriculate.
220. A. (Dipl.) Shepherdi, Spreng. ; St. tufted, 1 ft. 1., firm, erect, greenish,
scaly below \ f r . 12-18 in. 1., 6-9 in. hr., with numerous b*>»® on each side,
the lower ones stalked, 4-6 in. 1., 1 - lJ in. br., the point acuminate, the edge
lobed above, the lobes a t the base sometimes reacliing down to the rachis, J in. br.,
and somewhat toothed ; texture herbaceous ; colour bright-green ; raxMs ra th e r
slender, greenish, naked ; veins pinnate in tlie lobes ; sori long, linear, not reaching
the edge.—A. striatum, L in n . Herh., Hk. Sp. 3. p . 246.—/3, A . inoequilaterum,
Mett. ; texture firm, colour duller ; pinnæ much acuminated ; the lohes deeper,
more uniform and falcate, the two sides unequal, the lower one unequally tru n cate
at the base. A. Schiedei, Mett.—y, A . caracasanum, Willd. ; habit slender ;
texture herhaceous ; lohes deep, narrow, bluntly toothed ; sori in rows distant
from the midrib, touching the edge. D. chlororachis, Kze.
Hab. Cuba and Mexico to Peru and S. Brazil.—The application of the name striatum,
founded on two vague figures of Plumier, is so various, that it seems best to discontinue
it. D. coarctatum, Link, from Brazil, differs only from our typical plant by its less
deeply lobed pinuæ, the upper ones being subentire, with some of the sori reaching trom
the midrib nearly to the edge.
221. A. (Dipl.) semihastatum, Kze. ; st. 6-9 in. 1., slender, naked, greenish ;
f r . 6-9 in. 1., 3-4 in. hr., the apex pinnatifid, only the lower part pinna,te ; most
of the B »«® simple, ohlong, and auricled, the lowest stalked, and 1 in. below
the next, 2 in. 1., 1 in. hr., the point blunt, the edge toothed and cut down nearly
or quite to the rachis into spatlmlate pinnl. ; texture herbaceous ; raclm slender,
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