XXXI. ADIAXTUM. 
•M 
pinnate, one to two feet long, void of pinn® near the apex, and rooting at the point ; pinnae oblong-dimidiate, 
numerous, subimbrioate, lower ones flabellate, round at the apex, the upper margin divided into small dilatato 
segments or inoiso-serrate, the loMmr entire, the base truncate, parallel with and close to the rachis. Sori small, 
numerous, crowded on the upper margin, and around the apex. Indusium small, seale-like, and very hairy. 
Eachis and stipes light brown. Fronds terminal, adherent to a small erect rhizome. 
8. A. INTERMEDIUM, Swortz (A. FOVBARDM, RcuMi ; A. BRASiLiENSE, Link ). — An ornamental evergreen stove 
Fern, native of tropical America and the West Indian Islands. Fronds bipinnate, a foot or more long; pinnae 
lanceolate, five to seven in number ; pinnules oblong, obtuse at tlie apex, membranous, light green above, rather 
glaucous beneath, the terminal pinnule subrhomboidal ; the sterile ones serrate. Sori oblong-linear, contiguous, 
produced on the upper and lower margins. Eachis and stipes slightly hairy ; lateral, adherent to a slender 
creeping rhizome. 
9. A. ScHOMBURGKiANUM, J. Smith . — ^A neat-loolciiig evergreen stove Fern, from South Ameiica. Fronds 
sub-glabrous, slender, bipinnate, about a foot long, bright green ; pinnae lanceolate, four to six inches long ; 
pinnules rather small and membranous, the lower ones flabellate, the rest oblong, dimidiate, the base truncate, 
parallel with and close to the rachis, the upper margin crenate-serrate, the lower straight or slightly curved, 
obtuse and serrate at the apex. Sori oblong, slightly curved, five to ten on the upper margin and around the 
apex. Eachis, stipes, and midrib of piniue thinly scattered over with rusty down. Fronds lateral, adherent to 
a slender creeping rhizome. 
10. A. viLLosuM, Linnceus . — A beautiful evergreen hothouse Fern, from the West Indies and South America. 
Fronds bipinnate, with three to six pairs of pinnae, one to one and a half foot long, lightish green ; pinnai 
lanceolate ; pinnules petiolulate, subcoriaceous, dimidiate-oblong or forming an oblique parallelogram, lower 
ones small subflabellate, terminal one rhomboidal ; upper base truncate and parallel with the rachis, lower 
dimidiate. Sterile pinnules broad, roundish at the apex, inciso-serrate at the margin. Sori linear, continuous on 
the upper margin, and round the apex of the pinnules. Eachis and midrib of pinnee covered with rusty hair- 
like scales. Fronds lateral, adherent to a creeping rhizome. 
11. A. PULVERtiLENTUM, Lumctus. — An ornamental evergreen stove Fern, from the West Indies and South 
America. Fronds slender, bipinnate, with four to six pairs of pinnae, one to one and a half foot long, bright 
green ; pinnae linear-lanceolate ; pinnules rather small, petiolulate, dimidiate-oblong, subfalcate ; upper base 
truncate and parallel with the rachis, lower dimidiate, round at the apex, sharply serrate at the margin, terminal 
one narrow-elongate. Sori oblong, continuous, occupying three-fourths of the upper margin only. Eachis 
and midrib of pinnae covered with rusty down. Fronds lateral, adherent to a creeping rhizome. 
12. A. PEDATUM, linnaus. — A very elegant deciduous frame or greenhouse species, from North America. 
Fronds glabrous, a foot or more high, pedately tripartite, branches linear-lanceolate, pinnate ; pinnules mem- 
branous, tender green, dimidiate, oblong obtuse at the apex ; cuneate or truncate at the base, the upper margin 
lobate or obtusely crenate. Sori oblong, solitary. Fronds lateral, on a short creeping rhizome about the size of 
a duck’s quill. 
13. A. cuRVATUM, Kaulfnss .- — An extremely elegant evergreen stove Fern, from Brazil. Fronds glabrous, 
one and a half to two feet high, pedately tripartite, branches lanceolate or linear-lanceolate, acuminate ; pinnules 
narrow, cuiwate, oblong-obtuse, imbricate, deorsely falcate, the superior margin inciso-serrate or crenate, the apex 
serrate, and more or less acuminate. Sori solitary, oblong. Fronds lateral, adherent to a creeping rhizome. 
14. A. FEARELiuLATUM, Linnccus (A. AMCENUM, WalUcli ). — -A neat low-growing evergreen warm greenhouse 
or stove Fern, from China and the East Indies. Fronds subglabrous, flabellate, bipartito-pedately-divided, tri- 
pinnate, from nine inches to a foot high, dark green above and glaucous beneath ; pinnte lanceolate-acuminate ; 
pinnules obliquely cuneate, repand, inferior ones semiorbicular-cuneate ; superior base truncate ; sterile margin 
serrate-dentate, fertile, two to four lobed, the lobes soriferous. Indusium large, the breadth of the lobes. Eachis pu- 
bescent. Stipes ebeneous, terminal, adherent to a creeping rhizome. This species was introduced to Kewin 1851. 
15. A. HispiDULUM, AiFffrtz (A. PUBESCENS, ; A. plica titm, Katdfuss ; A. nervosum, Swartz ). — An 
ornamental evergreen greenhouse species, from New Holland, New Zealand, the East Indies, &c. Fronds 
pubescent, one foot high, pedately tripartite, branches linear, narrow, acuminate, pinnate, of a deep green ; 
pinnules numerous, dimidiate, oblong obtuse, cuneate or truncate at the base, slightly serrate or crenate on the 
upper margin. Sori small, numerous ; indusium hairy and reniform. Fronds nearly all fertile, lateral or 
terminal, on a short somewhat tufted rhizome. 
16. A. TENELLUM, T. M. (A. HisPiDULUM, not of NiFflrtc ; ? A. HispiDULUM, Broivn ). — A pretty 
little evergreen greenhouse species, supposed to be a native of New Holland. Fronds small, rather hairy, bi-tri- 
pinnate, lower branches bipartite, pinnate above, six or eight inches high, branches small, narrow, and slender ; 
pinnules small, subrotund or oblong obtuse, dark green, cuneate or truncate at the base, the margin crenate. Sori 
small; indusium reniform. Fronds lateral, adherent to a slender creeping rhizome. This species, long known 
in gardens as the A. hispkhdum, is not the plant of Swartz, as Sir W. J. Hooker has shown, that being the 
A. pnbescens of gardens. Whether it be the plant so called by Mr. Brown, as has been suspected, we have no 
means of ascertaining. It is certainly and abundantly distinct from the true hispiduhwi. 
17. A. AFFINE, Willclenow (A. setulosum, J. Smith ). — A neat evergreen stove Fern, from New Zealand and 
Norfolk Island. Fronds about a foot bigh, three-branched or subpedate, lower pinnae bipartite ; pinnules 
