AN ENCYCLOPAEDIA OF HORTICULTURE, 
171 
Hypoxis—continued. 
H. elata (tall). fl. golden-yellow, 2in. in diameter ; peduncles lin. 
long, slender ; scapes numerous, shorter than the leaves, bearing 
many-flowered racemes. June, l. very numerous, lft. to lift. 
long, spreading and revolute, thinly villous above, thickly hairy 
below. Natal, 1862. (B. M. 5690.) 
H. erecta (erect). fl. yellow; scape four-flowered ; peduncles 
twice as short as leaves, June and July. J. linear-lanceolate. 
h. 6in. North America, 1752, Plant hairy. See Fig. 262. 
(B. M. 710.) 
H. latifolia (broad-leaved). fl. bright yellow, large, green exter- 
nally ; peduncles axillary; racemes spicate, many-flowered, l., 
lower ones squamiform upwards, about 6in. long, broad-lanceo- 
late, acuminated ; upper ones narrowest, becoming gradually 
elongated, 2ft. long. Natal, 1854. (B. M. 4817.) 
H. longifolia (long-leaved). M., perianth golden-yellow within; 
outer segments lanceolate, sub-acute, green and villous on the 
back ; inner rather broader, with a dorsal en villous midrib; 
umbel four or five-flowered ; scapes several, much shorter than 
‘the leaves. August. Z, numerous, the outer 2ft. long, spreading 
on the ground ; the inner sheath sub-erect ; sheath broad, mem- 
branous, 2in, to 4in. long ; blade grass-like, very slender, flaccid, 
bright green, with a few scattered hairs on the — and keel, 
Stems tufted. k. 1ft. Algoa Bay, 1871. (B. M. 6035.) 
H. stellata (star-like).* A. white, blue; scape one-flowered, 
shorter than the leaves. April to June. l. linear-lanceolate, 
loose-keeled. h. Yin. Cape of Good Hope, 1752. (B. M. 662.) 
The variety figured in B. M. 1223 is elegans, 
HYSSOP (Hyssopus officinalis). An aromatic ever- 
green bushy herb, native of Southern Europe. It is 
cultivated for the use of its flowers and tops, which are 
steeped in water to make an infusion sometimes employed 
as an expectorant. There are three varieties, known 
respectively by their blue, red, and white flowers. They 
may be propagated by seeds, sown in April; by dividing 
the plants, in spring or autumn; or by cuttings, made 
in spring, and inserted in a shady situation. Plants 
raised from seeds or cuttings should, when large enough, 
be planted out, about 1ft. apart each way, and kept 
watered until established. They succeed best in a warm 
aspect, and in a light, rather dry soil. The plants require 
cutting-in occasionally, but do not need much further 
attention. Varieties of Hyssop are sometimes employed 
as edging plants. ; ' 
HYSSOPUS (from Hyssopos, the old Greek name, used 
by Hippocrates). Hyssop. ORD. Labiate. A monotypic 
genus, the species being a hardy shrubby plant. For 
culture, &c., see Hyssop. , 
H. officinalis (officinal). M. bluish-purple, rarely white ; whorls 
six to fifteen-flowered. June to September. J. elliptic or linear. 
h. lft. to 2ft. Mediterranean region and Central Asia, 1548. 
IANTHA. See Ionopsis. 
IANTHE BUGULIFOLIA. 
folia. ; ; 
. Pure blue stained with red, so as to 
be intermediate between the two colours. 
IBATIA. A synonym of Lachnostoma (which see). 
IBBETSONIA. (named in honour of Mrs. Agnes 
Ibbetson, the author of several papers on Vegetable 
Physiology, published in ‘‘ Nicholson’s Philosophical 
Journal”). A small genus of shrubby greenhouse Cape 
plants, now referred to Cyelopia. For cultivation, see 
Podalyria. 
I. genistoides (Genista-like . yellow, pea-shaped, with an 
irregular men He ween oe ek ts base. Summer. l. sessile, 
TN; 
ate; leaflets narrow-linear with strongly revolute margins. 
— to 5ft. A much-branched glabrous shrub. (B. M. 
). 
See Celsia buguli- 
ELLA (a diminutive of Iberis). ORD. Cru- 
ciferæ. A genus comprising six species of herbs or sub- 
shrubs, natives of the mountains of Syria, Persia, and 
Asia Minor; one being from the Himalayas. I. rotundi- 
folia, the species usually seen under cultivation, is a 
very pretty, densely-tufted, spreading, alpine, herbaceous, 
tap-rooted plant, requiring a rather light soil. It may 
be freely increased by seeds, or by divisions. 
Iberidella—continued. 
I. rotundifolia (round-leaved).* jl. rosy-lilac, with a yellow eye, 
fragrant, about din. in diameter, and disposed in erect, eylin- 
drical, crowded racemes. April. 1, opposite, fleshy, broadly- 
ovate. h. 3in. to 6in, European Alps, 1 (B. M. 5749.) 
IBERIS (from Iberia, the former name of Spain), 
Candytuft. OrD. Crucifere. A genus comprising twenty 
species of annual or biennial herbs or sub-shrabs, from 
South Europe and Western Asia. Flowers white or 
purple, racemose or corymbose; petals four, two outer 
ones largest. Leaves alternate, linear or obovate, entire 
or pinnatifid. Stems round, usually smooth. All the 
species are of easy culture in ordinary garden soil, if 
the position is well exposed to sun and air, The annuals 
and biennials are increased by seeds. For summer 
flowering, sow in March or April, and in August or 
September for a spring display. A light sandy soil is 
most suitable for sowing the seeds in, The sub-shrubby 
sorts are handsome, compact-growing plants, admirably 
adapted for the fronts of shrubberies and herbaceous 
borders. These species may be increased by seeds, sown 
in spring; but the most usual method is by cuttings, or 
by divisions, the latter of which are easily effected, 
I. amara (bitter). Common Candytuft. 7. white, corymbose, finall 
racemose. June. l lanceolate, ord somewhat toothed. A. rm 
to 12in. Western Europe (Britain) Annual. 
I. a. hesperidifolia (Hesperis-leaved). An improved form of the 
type ; larger, and very ——— k. 1ft. ea 
I. Bernardiana (Bernard’s). fl. pink, corymbose, Summer. 
l. spathulate, lobed, deep glossy green, forming dense compact 
rosettes. h, 6in. Pyrenees, Annual, Syv. /. Bubanii, 
I. Bubanii (Buban’s) A synonym of J. Bernardiana, 
I. ciliata (ciliate). A. white. June and July. 7. linear, entire, 
ciliated atthe base. A. 9in. South-western hey 1802. Plant 
herbaceous, rather smooth. Biennial, (B. M. 1030.) 
I. c. taurica (Taurian). fl. white, corymbose. May to July. 1. 
ciliated, somewhat fleshy; lower. ones spathulate, somewhat 
bidentate at the apex ; upper ones linear, A. bin. to 9in. Tauria, 
1802. Annual or biennial. ; 
Fic. 263. FLOWERING BRANCH AND DETACHED FLOWER OF 
IBERIS CORONARIA. 
coronaria (crown-flowering).* Rocket Candytuft. 7. re 
white, in aous long, dense heads or spikes at the tops of the 
stems. July. l. lanceolate, coriaceous, entire. A. lft. 1836. 
Native country uncertain. Annual. See Fig. 263. (S. B. F. G. 
ser. ii. 359.) The variety known as the “Giant Snowflake” is a 
very fine form. 
i ia (Correa-leaved).* f. white, large, disposed in com- 
flat heads ; but, as the stems become elongated, and the 
succession of buds open, a long round cluster is formed by the 
old flowers remaining, such heads or spikes being 3in. long. May 
and June. J. spathulate, obtuse, entire, smooth, about 1jin. long. 
