Hab. Europe—Ireland, Wales, Spain ; Africa—Canaries, Madeira, island of St. Thomas,
Eernando Po, Angola, Johanna Island ; Asia—Japan and Northern Hindostán, Polynesian
Islands ; America, from Alabama, Mexico, and the West Indian islands southward
to Eio Janeiro.—-A very widely-diffused and variable plant. The two striking varieties
mentioned are both confined to the tropical zone. Van den Bosch refers T. sccmdens,
Linn., to our ¡3, but the plant of the Linnæan Herbarium is our species 6S>.
51. T. aurkulatum, Blume ; rhizome strong, wide-creeping, tomentose ; / • . nearly
sessile, 6-12 in. L, 1 4 - 2 in. br., bipinnatifid, rachis wiry, very slightly winged
throughout or above“" only ; pinnæ shortly stalked, ovate-rhomboidal, obliquely
cuneate at the base, irregularly pinnatifid halfway down or more, the lowest
anterior lobe often considerably prolonged beyond tbe others ; texture subcoriaceous
; venation close, flabellate ; son 2-12 to a pinna, the tube nearly or
quite exserted, the mouth truncate. Ilh , Syn. 1. p. 133. T. dissectum, J .Sm .
Hk. Syn. l . p . 140. Cephalomanes, V. D . B .
Hab. Japan, Eormosa, N. Hindostán, Philippines, Java, and Guiana.—Placed by
Van den Bosoh in the same genus as T. Javamtmn, on account of the agreement in
venation.
52. T. denticulatum. Baker ; rhizome slender, wide-creeping ; St. slender, naked,
4-4 in. 1. ; f r . l - l j in. 1., 4 in. br., ovate or oblong, bipinnatifid, main rachis
winged above, free below ; pinnoe pinnatifid down to a narrowly-winged rachis ;
ultimate segm. linear, serrated, about J in. 1., 4kn. br. ; texture membranaceous ;
a costa only in each segment ; sori 1 to a pinna, terminal on the lowest segment
on the upper side, tube exserted, mouth with two bluntly trian g u la r lips.
Hab. Borneo, discovered by the late Mr. Motley.—An interesting plant, combining
the habit of II. Tunbridgense with the fruit of a Didymoglosseim.
53. T. venosum, R. Br. ; rhizome slender, tvide-creeping ; St. 1-2 in. 1., very
slender, naked ; f r . 2-6 in. 1., I - I 4 in. br., and pinnatifid, the main rachis free
in the lower half, broadly winged above ; lower p innæ about 1 in. 1., varying
from linear aud nearly simple to lanceolate deeply pinnatifid below; texture
membranaceous ; costa wavy, with numerous alternate once or twice dichotomous
secondary veins ; surface naked, shining ; sori only 1 to a pinna, ax illa ry on the
upper margin, tube immeised, much dilated, slightly two-lipped.—f t / . Sp. l . p .
132. H k . £ Gr. Ic. F i l . t . 78. Phlebiophyllum, F.-D. f t.
Hab. Australia and New Zealand.—A very distinct species.
64. T. crispum, L. ; rhizome short or somewhat elongated, strong, tomentose ;
f r . scattered or tufted ; st. 2-6 in. 1., strong, wiry, tomentose ; f r . 4-12 in. h,
1 4 - 2 in. hr., lanceolate, fully pinnate or pinnatifid nearly to the rachis ; lower
pin næ |- 1 in. 1., 2 lin. br., oblong, obtuse, spreading or even deflexed ; texture
membranaceous and the pinnse often incurved and crisped ; rachis more or less
clothed with reddish-brown hairs, the surface hairy, especially beneath, and the
margin ciliated ; lateral veins of the pinnæ usually once dichotomous ; sori 1 to B,
placed round the apex of the pinnæ, tube quite sunk, mouth two-lipped ; recept.
long, exserted.—H k . Syn. l . p . 130. f t / . £ Or. Ic. F il. t. 12.
Hab Tropical America, from Cuba and Mexico southward to Peru and Brazil, and
recently gathered in West Tropical Africa (banks of the Nun and Niger) by Barter and
Mann.—Apparently we include here all the simply pinnatifid section of Aolwmmies of
Van den Bosoh, who enumerates eighteen species. The principal variation is in the
vestiture of the frond and elongation ot the rootstock, so that the fronds are either tutted
or scattered. The extremes of the series in the former respect are T. pellueens, Kunze,
which is nearly naked, and T. Martinsii, Presl, and T. Plumula, Presl, in which the
rachis is densely clothed with long rust-coloured hairs, and the fronds also thickly coated,
especially beneath.
55. T. a in itim , Sw a itz ; st. tufted, 1-3 in. 1., slender, villose; f r . 2-8 in. 1.,
4 - | in. br., ovute-lanoeolate or linear-oblong, bipinnatifid ; pinnoe roacbing down
very nearly to the rachis, the lower ones ovate-oblong, cut about halfway down into
broadly linear segments ; substance membranaceous, the surface slightly hairy,
margin ciliated ; veins slender, the lateral veins of the pinnæ usually
branched ; so
h u t scarcely 1
Hab. West Indian Islands and Andes of Ecuador.—This constitutes the genus
largin usua lly once
ranched sori 1 to 2 to a pinna, terminal, tube sunk, mouth ciliated, spreading,
lit two-lipped.—H k .S p . 1. p . 131.
' ’ of Presl.
60. T. lucens, Sw-artz ; caud. scarcely creeping ; st. tufted, 2-4 in. 1., stout,
densely clothed with long, fine, ferruginous hairs ; f r . 6-18 iu. 1., 2-4 in. br.,
oblong-lanceolate, fully pinnate ; pinnæ very close, often imbricated, transversely
crisped, pinnatifid about halfway down to the costa, the lower ones linear-
acuminate, 1-2 in. 1., 4-§ in. br. ; substance delicately membranaceous ; rachis
densely tomentose ; costa and veins also rufo-vlllose ; sori as many as 20
to a pinna, occupying the greater part of both edges, tube quite sunk, mouth
with two lateral projections.—f t / . Sp. 1. p. 139. t. 41. A. T.
splendidum.
V. D . f t.
Hab. Tropical America, from Guatemala and Jamaica southward to Peru.-
67. T. Lambertianum, Hk. ; caud. scarcely creeping, tomentose ; st. stout, 4-5
in. 1., densely clothed with long, fine, reddish-brown hairs ; f r . 6-12 in. h, not
more th an 1 in. hr., linear-oblong, acuminate, pinnate ; pinnæ densely crowded,
imbricated, subsecnnd, oblong, obtuse, cut more th a n halfway dowm to the
r a c h is ; pinnl. again pinnatifid with linear-ohlong segm.; substance thin, but
the frond much crisped, and especially the rachis, densely tomentose ; sori 4 to 12
to a pinna, the tube quite sunk, the m outh with two lateral projections.—f t / . Syn.
1 . / . 139. t. 41. B.
Hab. Peru.—A singular plant, with very closely-crowded pinnæ and segments, the
alliance of which is evidently with T. lucens.
Ma in rachis o f the fro n d quite fre e or only very slightly winged towards
the apex. Sp. 58-77.
t Fronds simply pinnate, pinnules not divided. Sp. 68-60.
68. T. cæspitosum, H k . ; rhizome wide-creeping, densely interlaced ; f r . sessile
or nearly so, 1-2 in. 1., ¿in. br., simply pinnate ; pinnæ concave, linear-oblong,
entire, about J in. 1. by 4 kn. br., the under surface, or solitary costa only,
clothed with strong brown hairs ; texture ra th e r rigid ; sori 1 only to a pinna,
terminal, the tube obovate-cuneate, quite immersed, the mouth spi-eading, with
two rounded lips.—H k . Syn. l . p . 132. t. 40. B. Serpyllopsis, V. D. ft.
Hab. S. Chili, Cape Horn, and Falkland Islands.—A very distinct plant, placed by
Van den Bosch in a genus by itself near Leptocionium.
69. T. Javanicum, Blume ; caud. tufted, with numerous strong wiry roots ; st.
1-4 in. 1., wiry, erect, naked or villose ; f r . 2-8 in. 1., 1-2 in .b r., ovate-laueeolate,
acuminate, once fully pinnate ; lower pinnæ often 1 in. 1., 4 in. hr., oblong,
obtuse or acute, obliquely cuneate at the base, finely toothed ; texture subcoriaceous
; veins numerous, close, central costa not clearly marked or continuous
to the apex ; sori 1 to 4, placed in the axils of linear segments on the
upper side of the pinnæ, tube free, the mouth broadly dilated but not tvvo-
lipped ; recept. much exserted.—H k . Sp. 1. p . 130. f t / . ? Gr. Ic. F il. t. 240.
Cephalomanes, V .D .B .
Hab. Tropical Hindostán, Malayan Penihsula, Borneo, Java, Polynesian Islands, and