AN ENCYCLOPADIA OF HORTICULTURE. 
Ichneumon Plies—continued. 
insects, if any, are wholly 
free from the attacks of 
Ichneumons, which are among 
the most active and efficient 
allies of the gardener, be- 
cause of the number of de- 
structive insects killed by 
them. Hence, Ichneumon 
Flies ought to be protected, 
as far as possible, by every 
horticulturist alive to his 
own interests. 
ICHNOCARPUS (from 
ichnos, a vestige, and karpos, 
a fruit; in reference to the 
slender follicles). Syws. Aga- 
nosma, Springia. ORD. Apo- 
cynacee. A genus compris- 
ing nine species of tall climb- 
ing stove shrubs, natives of 
the ‘East Indies, the Malayan 
Archipelago, Eastern Asia, 
and tropical Australia. For 
culture, see Dipladenia. 
According to Bentham and 
Hooker, the plants deseribed 
under Aganosma should be 
included here. 
I. frutescens (shrubby). f. 
purple, small; corolla salver- 
shaped; peduncles axillary, 
very long, racemose, July and Angust. J. opposite, oblong- 
lanceolate, glabrous. Tropical Asia and Australia, 1759. 
ICICA. This genus is now included under Bursera. 
ICONES. Pictorial representations of plants. 
ICOS. 
This, in Greek compounds, signifies twenty. 
Fic. 267. BRANCH OF IDESIA POLYCARPA. 
FIG. 268, BRANCHLET OF IDESIA POLYCARPA CRISPA, 
IDESIA (named after Yobrants Ides, a Dutch traveller 
in China). Orp. Bixinew. A monotypic genus, the 
species being a large and ornamental hardy tree. It 
thrives in light and well-drained sandy soil. Increased 
in spring or autumn, by half-ripened cuttings, inserted in 
_ sandy loam, and placed under a bell glass, in gentle heat; 
also by seeds, sown in spring, likewise in a gentle heat. 
E polycarpa (many-fruited).* jl. dicecious and apetalous, incon- 
spicuous, in terminal panicles. fr. in drooping clusters, orange- 
` coloured, about the size of a pea. l. large, alternate, cordate, 
remotely serrulate, acuminate. — Syns. Flacourtia 
japonica, Polycarpa Maximowiczii. See Fig. 267. (R. H. 1868, 320.) 
crispa (curled). .This is a f the type, and is re. — 
Lp. oe — * jan Aia cut end trend avon. See Fig. 268. 
IDOTHEA. See Drimia. si 
IDOTHEARIA. See Drimia. : 
IGNATIA. Now included under Strychnos (which 
see). ; 
IGNEUS. Fiery-red. 
ILEX (from Ilex, the Latin name given by Virgil to 
Quercus Ilex). Holly. Including Prinos. Orb. Ilicineæ. 
A genus comprising 145 species of mostly hardy 
shrubs or trees, inhabiting temperate and tropical 
regions, abundant in South America, rare in Africa and 
Australia. Flowers white, often sub-diœcious; peduncles 
axillary, few-flowered, or often ramose. Drupe globose. 
Leaves alternate, often shining, entire, dentate or 
spinose. The common Holly, with its innumerable 
varieties, is well known and extensively cultivated. It 
submits to training in almost any shape, and soon 
recovers if severely pruned to preserve the desired 
character in this respect. Pruning or cutting should — 
be practised either in September or April, both in 
the ease of trained trees and the clipping of hedges. 
The Holly may be best transplanted at the beginning of 
May, or early in autumn, when there is sufficient time 
for new roots to be formed before winter. It does not 
transplant well when old, but is a long-lived tree when 
established in good soil and left undisturbed at the root. 
One of the handsomest and most endurable hedges which 
ean be grown is made from this plant. It is slow-grow- 
ing, taking eight or ten years from seed to make a fence 
4ft. high ; consequently, it is less extensively employed than 
i 
