THE GENERA AND SPECIES OF CULTIVATED FERNS. 163 t 
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pinnules small, dimidiate, rigid, obtuse, imbricate, deep green, and truncate at the base. Sori oblong. Stipes dull 
black, minutely muricated ; lateral, adherent to a scaly creeping rhizome. This species is in cultivation under the 
name of A. vittosum. 
11. A. ajjine, Willdcnow (A. setulosum, /. Smith). — A neat evergreen stove Fern, from New Zealand and 
Norfolk Island. Fronds bipinnate, lower pinna? bipartite, about a foot high ; pinnules dimidiate, curved, oblong, 
obtuse, membranous, tender green, with black bristle-like hairs on the upper surface, superior margin obtusely 
crenate. Sori punctiform, from four to six on each pinnule ; indusium hairy, reniform. Rachis and stipes 
glabrous ; lateral, adherent to a slender creeping rhizome. 
12. A. hispidulum, Swartz. — A pretty little evergreen greenhouse species, a native of New Holland and New 
Zealand. Fronds rather hairy, bipinnate, lower branches bipartite, above pinnate, six or eight inches high, 
branches small and slender ; pinnules small, subrotund or oblong-obtuse, dark green, euneate at the base, the 
margins crenate. Sori small ; indusium reniform. Fronds lateral, adherent to a slender creeping rhizome. 
13. A. pubescens, Schkuhr. — An ornamental evergreen greenhouse species, from New Zealand. Fronds pube- 
scent, one foot high, pedate, branches linear, narrow, acuminate, pinnate, of a deep green ; pinnules numerous, 
dimidiate, oblong obtuse, euneate at the base, slightly serrate or crenate on the margin. Sori small, numerous ; 
indusium hairy and reniform. Fronds nearly all fertile, lateral or terminal, on a short somewhat tufted rhizome. 
14. A. pedatum, Linnteus. — A very elegant deciduous frame or greenhouse species, from North America. 
Fronds glabrous, a foot or more high, pedate, branches linear, pinnate ; pinnules membranous, tender green, 
dimidiate, oblong-obtuse ; euneate at the base, upper margin lobate, or obtusely crenate. Sori oblong, solitary. 
Fronds lateral, on a short creeping rhizome. 
15. A. curvatum, Kaulfuss. — An extremely elegant evergreen stove Fern, from Brazil. Fronds glabrous, one 
and a half or two feet high, pedate, branches linear-lanceolate, acuminate ; pinnules oblong-obtuse, eurvate, 
imbricate, sub-dimidiate, superior margin inciso-serrate or crenate. Sori solitary, oblong, reniform. Fronds 
lateral, adherent to a creeping rhizome. 
16. A. Cunninghami, Hooker. — An ornamental evergreen greenhouse Fern, from New Zealand. Fronds 
glabrous, bi-tripinnate, twelve or fourteen inches high ; pinnules dimidiate, oblong-obtuse, euneate at the base, 
deep green, superior margin inciso-serrate. Sori numerous ; indusium reniform. Stipes scaly near the base, late- 
ral, adherent to a scaly creeping rhizome. This species is in cultivation under the name of A. affine. 
17. A. Capillus-veneris, Linnajus (A. Moritzianum, Klotzscli). — A dwarf evergreen frame or greenhouse Fern, 
indigenous to Britain, and common in the south of Europe, north of Africa, the Canaries, and the Cape de Verd 
Islands. Fronds glabrous, bi-tripinnate, six or eight inches high ; pinnules obovate-cuneate, inciso-sublobate, mem- 
branous, tender green, serrate at the margin. Sori oblong. Fronds lateral, adherent to a scaly creeping rhizome. 
This species, although indigenous to Britain, is one of those delicate tender Ferns that cannot be cultivated in 
exposed places, or on ordinary rockwork ; if planted in such situations, it invariably dwindles away, and is soon lost. 
It grows freely in a close frame or greenhouse, where the atmosphere is kept moist. In the south of Europe, the Chan- 
nel Islands, and Madeira, being warmer than England, it attains the height of eighteen inches, and is then called 
A. Moritzianum ; but the English plant, if cultivated in a moist stove with a high temperature, will produce fronds 
of equal magnitude with those from the south of Europe or Madeira, with which they are precisely identical. 
18. A. assimile, Swartz. — A very neat and delicately beautiful evergreen greenhouse Fern, from New Holland 
and New Zealand. Fronds glabrous, slender, tripinnate, a foot or more long ; pinnules small, somewhat rhoni- 
boidal, euneate at the base, bright green, and slightly lobed or crenate at the margin. Sori small ; indusium 
reniform. Fronds lateral, adherent to a slender creeping rhizome. 
19. A. omentum, Langsdorff and Fischer. —An evergreen stove Fern from Brazil. Fronds glabrous, three or 
four times pinnate, a foot or more high, branches very slender and of a light green ; pinnules small, numerous, 
oblong wedge-shaped, ineiso-sublobate, sterile lobes serrulate, fertile emarginate. Sori small; indusium reniform. 
This species is one of the most delicately beautiful of the genus ; the fronds grow rather erect, and are adherent 
to a somewhat tufted rhizome. 
20. A. continuum, Humboldt, Bonpland, and Kunth. — A very graceful pendulous evergreen stove species, 
from the West Indies, Venezuela, and other parts of South America. Fronds glabrous, slender, tripinnate, two 
to three feet long ; pinnules somewhat round or rhomboidal, membranous, tender green, obtuse with crenate lobes, 
tho lowest erect and appresscd to the rachis. Sori small, numerous ; indusium renifonn. Fronds lateral, 
adherent to a somewhat creeping rhizome. 
21. A. tenerum, Swartz. — A very elegant evergreen stove Fern, from the West Indies and Central America. 
Fronds glabrous, brandling, four times pinnate, two to two and a half feet high; pinnules membranous, bright 
green, rhomboidal, obtuse, inciso-lobate ; sterile lobes serrulate, fertile entire. Sori obloug-rcniform. Fronds 
lateral, adherent to a short creeping rhizome. 
22. A. trupczifornu; Linmcus : (A. rhomboideum, Schkuhr; A. formosissimuni, Klotzscli). — An evergreen 
stove Fern, from Jamaica and other West India Islands. Fronds glabrous, four times pinnate, two to three feet 
high ; pinnules large, bright green, ovato-rhomboidal, acuminate, the apices serrate and sub-crenate. Sori large, 
oblong ; indusium reniform. This is a very beautiful fern, from the contrast of its large, delicate, green pinnules, 
with the shining black stipes and rachis. The fronds are lateral, adherent to a short creeping rhizome. 
23. A. formosum, 11. Brown. — An ornamental evergreen greenhouse Fern, from New Holland. Fronds 
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