JUSTICTA. 
Greenhouse and Stove Plants. 
223 
produced freely from every bit of growth 
the plant makes. One of the best hard- 
wooded flowering stove plants introduced 
in recent years. Northern Borneo. 
J. ligustrifolium. An evergreen shrub 
with white flowers, produced for a long 
period in succession. From India. 
J. Sambac fi.-pl. This is an evergreen 
climbing species that bears white, highly 
fragrant double flowers most useful for 
bouquets. It is not a strong grower, and 
must not be over-potted. A native of the 
East Indies. 
Insects. — These heat-requiring Jas- 
mines are subject to most of the insects 
that affect plants requiring artificial 
warmth, including aphides, thrips, and red 
spider, which must be kept down by daily 
syringing overhead and fumigating. If 
mealy bug or scale attack them, syringe 
well with or dip in insecticide, until they 
are free from the pests. 
JASMINUM. 
(Greenhouse. ) 
The greenhouse kinds of this genus are 
evergreen, proverbial for the pretty flowers 
they bear. 
The propagation and cultivation of the 
kinds under notice is similar to that advised 
for the stove species, which see, except that 
‘an ordinary greenhouse temperature is 
sufficient after the plants get established. 
The undernamed are the most suitable 
for use as greenhouse climbers :— 
J. azoricum. Has white flowers, produced 
in summer. From Madeira. 
J. grandiflorum. A white-flowered 
summer bloomer. From India. 
J. heterophyllum. A white-flowered 
species that blooms in summer. From 
Nepal. 
J. odoratissimum. Flowers white, blooms 
in summer. A native of Madeira. 
JONESIA. 
Of the known species of this genus J. 
Asoca is much the most important; it is 
an evergreen stove tree requiring a high 
temperature to grow well. It has. large 
leaves, compared with which the flowers 
are small ; they are produced in corymbs, 
and are individually about the size and 
shape of those of the common Hawthorn, to 
which the trusses are similar in size; the 
colour is dark orange. It is suitable only 
for a large house. 
It will succeed under treatment similar 
to that advised for Amherstia (which see), 
except that it will do with somewhat less 
heat. Its flowers are fragrant. Introduced 
from India. 
JUBAA SPECTABILIS. 
(Syn. : Cocos chilensis. ) 
This Palm is well worth growing, as it is 
one of the not too plentiful kinds that will 
thrive in a greenhouse. It is a handsome 
species attaining a large size as it gets old, 
and is pretty in a young state. From 
Chil. 
Propagation and cultivation given under 
Palms, general details of culture. 
JUSTICIA. 
This genus contains a large number 
of species of easily-managed quick-growing 
plants, that soon arrive at a flowering state. 
Most of them are evergreen stove shrubs ; 
—the most desirable kinds are remarkable 
for their free disposition of flowering. 
They strike readily from shoot-cuttings 
in spring, kept moist, close, and shaded in 
a moderately brisk heat; when rooted 
move them singly to 3-inch pots, giving 
them good turfy loam with some leaf- 
mould, rotten-manure, and sand, in which 
mixture they thrive freely; keep them 
rather close until they have begun to grow 
away, when pinch out the tops and give 
more air, still keeping them in a stove 
temperature with a tolerably moist atmo- 
sphere, and shade when the weather is 
bright. In two months after they were 
potted they will require moving to 6 or 8 
inch pots, according to the more or less 
natural strength of the kinds grown; use 
the same sort of soil, but let it be now ina 
more lumpy condition. Again pinch out 
the points, syringe daily, and give liberal 
waterings as the soil gets full of roots ; 
stand them with their heads well up to the 
glass, and give air and shade; as the 
summer draws to a close, dispense with the 
latter altogether as soon as the plants will 
bear it, give more air and put a few sticks 
for support. The most useful kinds are 
those that bloom in autumn. After flower- 
ing those that are to be kept for another 
year should have their shoots shortened 
and be kept in a temperature through the 
winter of about 60° by night. In spring 
shake a portion of the old soil away and 
give pots 3 or 4 inches larger, striking 
cuttings of these kinds that it is preferred 
to bloom in a smaller state, and treating 
the old plants as advised in the summer 
previous. When the pots are full of roots 
manure-water is a great assistance, either 
with small or large examples. 
J. carnea. A strong-growing free- 
