18 
THE DICTIONARY OF GARDENING, 
Acroclinium— continued. 
tubular florets; involucrum many-leaved, imbricated. 
Leaves numerous, linear, smooth, acuminated. Stems, 
numerous, erect. They thrive best in a loamy soil, and 
constitute very neat summer flowering annuals if sown 
out of doors in patches in June; they are also useful as 
winter decorative greenhouse plants if seed is sown in 
August in pots placed in a cold frame. The flower-heads 
setae be gathered when young, if it is desired to preserve 
em, 
Fic. 21. ACROCLINIUM ROSEUM, showing Habit and Flower. 
A, roseum (rosy).* /l.-heads pretty rose, solitary, terminal, on erect, 
slender, and grace: wt disposed branches. l. linear, acute, h. lft. 
to 2ft. S. W. Australia, 1854. See Fig. 21. 
A. r. album (rosy white).* A very pretty white form of the 
preceding. 
A.r. g rum flowered).* fl.-heads than in 
A homans (large- ).* fl. rose, larger 
© ACROCOMIA (from akros, top, and kome, tuft; refer- 
-~ ring to the position of the leaves). OBD. Palmacee. A 
= genus of South American palms, containing about eleven 
species, which are not easily distinguished, but having the 
ollowing general characteristics: Trunk from 20ft. to 50ft. 
- high, and clad with long prickles. The flowers, which appear 
in the axils of the lower leaves, are greenish or yellow, 
and their drupes are much the same colour. Leaves 
pinnate, with seventy to eighty leaflets on each side of the 
pinnæ. They require a warm greenhouse and rich sandy 
loam. Increased by suckers. Two species only are in 
general cultivation. 
A. aculeata (prickly). h. 40ft. West Indies, 1791. 
A. fusiformis (spindle-shaped). h. 40ft. Trinadad, 1731. 
A. globosa (globular). h. 20ft. St. Vincent, 1824. 
_ A. horrida (horrid). h. 30ft. Trinidad, 1820. 
A. lasiospatha (hairy spathed). J. drooping. Trunk about 40ft. 
_ high, smooth and ringed. Para, 1846. AK 
scelerocarpa (hard-fruited).* A very elegant species bearing a 
head of spreading pinnate leaves, with the rachises and petioles 
e, and the leaflets linear, taper-pointed, glaucous under 
neath about lit. long. A. 40ft. West Indies, 1731. Syn. Cocos 
A. tenuifolia (fine-leaved). h. 30ft. Brazil, 1824. 
Plants increasing at the summit, as 
Ferns, &c. 
a ACRONYCHIA (from akron, tuft, and onus, a 
= claw ; referring to the curved points of the petals). ORD. 
Rutacee. An ornamental rue-like greenhouse evergreen 
shrub. Petals and sepals four; stamens eight, inserted on a 
disk; fruit berry-like. It requires ordinary greenhouse 
treatment. Increased by cuttings in July in sand, under a 
bell glass. : 
A. Cunninghami (Cunningham’s).* fl. white, in clusters, resem. 
= aon hoe of at with an exquisite fragrance. 
ACROPERA. See Gongora. 
_ ACROPHORUS. See Davallia, 
ACROPHYLLUM (from akros, top, 
leaf; 
; referring to the way in which the leaves d 
at the summit of the branches, above the flowers). 
e. July. A Tit. 
- lobed lower pinnules. fi 
long, deltoid, wit. 
acea- 
O g 
Acrophyllum—continued. 
Cunoniacee. Handsome greenhouse small, erect-growing, 
evergreen shrubs, flowering profusely during the spring 
months. They require a mixture of fibrous peat, a little 
loam, and sharp sand ; thorough drainage, an airy situation, 
and as little artificial heat as possible, are important to its 
well-being. Re-pot in February. Propagated by cuttings 
of the half ripened shoots, which strike freely in a soil of 
sand and peat, if covered with a hand glass, and placed in 
a cool house. The roots should not be allowed to get dry, 
and light syringing during late spring and summer will be 
found beneficial in assisting to keep down thrips. 
A. verticillatum (whorled). A synonym of A.venosum. 
A. venosum (veined).* fl. pinkish white, in dense axillary 
spikes, which are borne on the upper part of the stems and 
branches. May and June. J. nearly sessile, oblong, cordate, 
acute, serrate, in whorls of threes, h. 6ft. New South Wales. 
Syn, A. verticillatum. 
ACROPTERIS. See Asplenium. 
ACROSTICHUM (from akros, top, and stichos, order ; 
meaning very obscure), ORD. Filices. This genus includes 
Aconiopteris, Chrysodium, Egenolfia, Elaphoglossum, Gym- 
nopteris, Olfersia, Polybotrya, Rhipidopteris, Soromanes, 
Stenochlena, Stenosemia. A large and almost entirely 
tropical genus; it includes groups with a wide range in 
venation and cutting. Sori spread over the whole surface 
of the frond or upper pinnse, or occasionally over both sur- 
faces. The species having long fronds, are admirably 
suited for growing in suspended baskets, and the dwarfer 
sorts do wellin Wardian cases. A compost of peat, chopped 
sphagnum, and sand, is most suitable. For general treat- 
ment and culture, see Ferns. ~ 
r-pointed).* rhi imbing. i. 4in. 
ans eph pon ).* rhiz. thick, climbing. sti ni 
A. 
to 6in. lo 
acuminatum. 
A. alienum (foreign). rhiz. woody. sti. 6in. to 18in. long, scaly 
downwards. barren fronds 1ft. to 2ft. long, often 1ft. broad, the 
upper part deeply pinnatifid, with lanceolate lobes, the lower 
part pinnate, with entire or deeply pinnatifid lower pinnæ., fertile 
fronds much smaller, with distant narrow linear or pinnatifid leafy 
pinnæ. Tropical America. Stove species. SYN, Gymnopteris aliena. 
A. apiifolium (parsley-leaved).* cau. stout, woody, erect, sti. of 
barren fronds 2in. to šin. long, erect, densely clothed with tomen- 
tum. barren fronds 4in, to 6in. each way, deltoid, tripinnate; 
pinnæ close, only the lowest pair with pinnatifid pinnules, ulti- 
mate divisions oblong-rhomboidal, łin. to jin. long, the base 
cuneate, the outer edge slightly toothed. fertile fronds on a 
slender naked stem 6in. to 8in. long, the fronds. panicled with a 
few distant, slender, simple, or compound branches. Philippine 
Islands, 1862, Stove species. Syn. Polybotrya apiifolia, 
A. apodum (stemless).* cau. thick, woody, the scales dense, 
linear, brown, crisped. sti. tufted, very short, or obsolete. O@rrem 
Fronds lft. or more long, 14in. to 2in. broad, the apes acuminate, 
the lower part narrowed very gradually, the edge and midrib 
densely fringed with soft, short, brown hairs. fertile fronds much 
smaller than the barren ones. West Indies to Peru, 1824, Stove 
species. SYN. Hiaphoglossum apodum. 
A. appendiculatum (appendaged).* rhiz, firm, woody. barren 
howe A 6in. to 18in, lo “hn. to ĝin. road, simply pinnate. sti. din. 
ed, or slightly scaly; pinnæ 2in. to 4in. 
long, łin. to Zin. broad, the e varying fro. t 
inne roundish or 
. Stove species. 
eum (golden).* cau. erect. sti. erect, 1ft. to 2ft. long, strong. 
gy oe 2ft. (oiie s , lft. to 2ft. broad, the upper pinne fertile, — 
rather smaller than the barren ones, which are usually stalked, 
ligulate oblong, Zin. to 1ft. long, żin. to Sin. broad, acute or blunt, 
“sometimes retuse with a mucro; edge quite entire, base sub-cuneate. — 
. Widely distributed in the tropics of both hemispheres, 1815. An 
evergreen aquatic stove species, requiring abundance of heat and — 
moisture. SYN. Chrysodium aureum. 
auritum (eared).* cau. erect, woody. barren fronds with a 
sn bin. rA long, deltoid, 8in. to 12in. each way, ternate, 
` the central segments deeply pinnatifid, with lanceolate e 
lobes; the lateral ones unequal sided, with lanceolate oblong- 
ertile fronds with a stem 12in. to 18in- 
with distant linear pinne half line broad ; upper 
