BOTANY. 
355 
Neplirodium, Eicli. 
89G. 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'S. Hk. and B. Syn. Fil. 1868, p. 279. 
897. *N. Napoleonis, Bory; lastrea Napoleonis, J. Smith; Aspi- 
dium Napoleonis, Bory. — A smaller plant than N cognatum, and moie 
abundant on the central ridge near Diana’s Peak. Fronds about 
twelve inches in length. It 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. patens, Desv. — Fronds about two feet in length, but 
with leaflets much more finely divided than either of the other spe- 
cies. It 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 Oakbank, Powel’s Spring, Willow Cottage, &c. Hk. and B. Syn. 
Fil. 1868, p. 262. — Hab. 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. an 
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. n i s 
locality it is closely associated with Hgmenophjllum cajnBaeem. Hk. 
and B. Syn. Fil. 1868, p. 321.— Hab. Also Cape Verdes, West Indies, 
and Guatemala to Guiana and Peru. 
901. *P. Dianae, Hk. ; P. nolle, Roxb. — A very common road- 
side Fern along Sandy Bay ridge, and the high land, at alt. 4 to o ; 
found equally on the north and south sides of the centra n b c. 
