52 
THE DICTIONARY OF GARDENING, 
Gardenia—continued. 
be given. Some persons prefer planting out Gardenias 
in a heated structure over hot-water pipes; but culti- 
vating in large pots allows the advantage of being able 
to shift them for destroying insects and for subjecting 
them to lower temperatures in other houses. It is not 
advisable to keep old plants; much better flowers, and 
a greater quantity, may be obtained from young ones 
grown rapidly by liberal treatment each, or, at least, 
every second, year. Almost any amount of water may 
be applied to the roots in summer, and syringing 
morning and evening may be freely practised. 
Insects. Gardenias, if not well looked after, become 
more infested with insects than is usual with even the 
ordinary occupants of warm houses. Mealy Bug is most 
destructive, collecting in quantities about the points, and 
crippling the young flowers and leaves. Careful watching 
for these, from the time cuttings are inserted, must be 
constantly kept up, and measures. taken to insure their 
eradication if found. A wineglassful of petroleum to a 
three-gallon can or open pail of tepid water, thoroughly 
mixed, by having a syringe filled two or three times, 
and its contents returned into the can, previous to 
being applied, is .one of the best insecticides. The 
plants should be laid on their sides, if in pots, the 
operation performed in dull weather, and the petroleum 
thoroughly removed by clean water half an hour later. 
This may be practised occasionally as a preventative. 
Green Fly is readily destroyed by fumigation ; Red Spider 
may be kept down considerably by syringing; and if 
Scale should be troublesome, they must be removed by 
sponging. All these infest Gardenias at some time, if 
the least chance is given; consequently, a watch must 
be kept, and measures applied, as preventatives to their 
becoming established. 
G. amoona (pleasing). fl. white, having the lobes purple on the 
outside in that part which. is exposed to the air, while the 
corolla is in wstivation, almost terminal, solitary, sessile; tube 
greenish, long, terete. June. J, oval, acute, g rous, on short 
petioles; spines axillary, short, straight. A. 3ft. to 5ft. China. 
Stove. (B. M. 1904.) : I 
G. florida (flowery).* Cape Jessamine. fl. white, sweet-scented, 
—— Lit a * * a 
solitary, š , sessile, salver -shaped nine -parted. 
August. l elliptic, acute at both ends. A. 2ft. to 6ft. China, 
1754. Plant shrubby, unarmed, erect. Stove. (B. M. 3349.) Of 
this species, there are several varieties, and that usually grown 
as florida is but a double-flowered variety (B. M. 2627). 
G. f. Fortunei (Fortune’s).* fl. white, large, pure, fragrant. 
July. l. opposite, or in whorls, bright shining green. China. 
Apparently a very large form of the typical species. (B. R. 32, 43.) 
G. f. variegata (variegated). This is much the same as. the type, 
but has leaves beautifully margined with yellowish-white. A 
handsome form, 
Fic. 81. SHOOT OF GARDENIA RADICANS VARIEGATA. 
Gardenia—vontinued. 
G. nitida (shining).* jl. white, terminal, solitary ; calyx six-parted ; 
corolla with a narrow tube and a seven-parted, reflexed limb. 
October and November. l. opposite or tern, oblong-lanceolate, 
undulated. h. 3ft. Sierra Leone, 1844. Stove. (B. M. 4543.) 
G. radicans (rooting). j. white, solitary, almost terminal, and 
nearly sessile, salver-shaped, very fragrant. June. lJ. lanceolate. 
Stems radicant. h. lft. to 2ft. Japan, 1804. Plant shrubby, un- 
armed. Greenhouse. (B. M. 1842.) ; 
G. r. major (larger).* This is one of the most —— flowering 
forms; it is larger in all its parts than the type, but smaller than 
G. florida, 
G. r. variegata (variegated). l. margined with white. Japan. 
An interesting and elegant form. See Fig. 81. 
G. Rothmannia (Rothmann’s). fl. yellow, puple; sepals sub- 
ulate, rounded; tube smooth, dilated, short. July. l. oblong ; 
stipules subulate. A. 10ft. Cape of Good Hope, 1774. Green- 
house. (B. M. 690.) 
G. Stanleyana, See Randia maculata, 
Fic. 82. GARDENIA THUNBERGIA, Showing Habit and detached 
+ Single Flower, A 
. r hunbergia).* i terminal, 
——— March. È 
Bie Central and Plant shrubby, unarmed. 
Greenhouse. See Fig. 82. (B. M° 1004.) E —— 
GARDEN PINK. See Dianthus plumarius. 
GARDOQUIA (named in honour of Don Diego 
doqui, a Spanish financier of the eighteenth centur 
who promoted the publication of a Flora of Peru). SYN. 
Rizoa. Orv. Labiate. A genus comprising about 
twenty-six species of greenhouse or half-hardy sub- 
shrubby evergreens, natives, for the most part, of Chili 
and Peru. Calyx tubular, th 
teen-nerved; corolla with a long, 
almost straight tube, its up} 
lip notched, the lower in three 
lobes, the middle one of which 
is broadest. Leaves small, nu- 
merous, entire, rarely largely 
dentate. Gardoquias thrive in a 
compost of loam, peat, and sand. 
Propagation is effected by cut- 
tings, made of half - ripened 
