*
i l
B O T A N Y . 355
Nephrodium, Rich.
896. *IT. cognatum, Hk.—One of the Ferns of the highest land,
where, amidst clumps of native vegetation, on the Central Ridge and
Diana’s Peak, it is found growing. The fronds are about two feet
in length. Alt. 4’8. Hk. andB. Syn. Fil. 1868, p. 279.
897. *N. Napoleonis, Bory; lastreaNapoleonis, J. Smith; Aspi-
dium Napoleonis, Bory.—A smaller plant than N. cognatum, and more
abundant on the central ridge near Diana’s Peak. Fronds about
twelve inches in length. I t abounds on the banks of Napoleon’s
Cabbage-tree Road and on the road to Newfoundland, at alt. 5.
Hk. and B. Syn. Fil. 1868, p. 279.
898. *N. patens, Desv.— Fronds about two feet in length, hut
with leaflets much more finely divided than either of the other species.
I t grows also at a lower alt., ranging from 2 up to 5, and
is found on the sides of mountain streams in the neighbourhood
of Oakhank, Powel’s Spring, Willow Cottage, &c. Hk. and B. Syn.
Fil. 1868, p. 262.—Hah. Also Florida and Texas, to Rio and Chili,
Demerara, Polynesia, Japan, &c.
Ophioglossum, Linn.
899. *0. vulgatum,var., Linn.—This little Adder’s-tongue comes
up thickly over the barren, rocky outskirts of the Island, principally
on the northern side, after the summer or winter rains ; but it soon
dies away when the hot weather succeeds. Alt. 1‘2 to 2. Hk. and B.
Syn. Fil. 1868, p. 446.—Hab. Also Lapland to Japan, the Himalayas,
Ascension, &c.
Polypodium, Linn.
900. *P. marginellum, Sw.; Grammitis marginella, Smith and
Roxb.—A delicate little Fern, growing parasitically on the Tree-fern,
and other indigenous plants, on the central ridge. Alt. 5’4. In its
locality it is closely associated with Hymenophgllum capiUaceum. Hk.
and B. Syn. Fil. 1868, p. 321.-—Hab. Also Cape Yerdes, West Indies,
and Guatemala to Guiana and Peru.
901. *P. Dianse, H k .; P. motte, Roxbg-A very common roadside
Fern along Sandy Bay ridge, and the high land, at alt. 4 to 5 ;
found equally on the north and south sides of the central ridge.