454 
THE DICTIONARY 
OF GARDENING, 
Japanese Arboriculture—continued. 
uf the Thuya obtusa (height 7in., length of branch 14in., 
age abont thirty-five years)—a handsome example. 
The treatment each subject requires to maintain it in 
health varies with the individual. According to Messrs. 
Yamanaka, several hours of sunshine each day is an 
important factor. Pines, for instan-e, need four or five 
hours’ sun a day, to be watered every other day, and 
once a week to be thoroughly sprinkled. Maples also 
require the sun at least half of each day, to be watered 
once a day until the leaves fall, when they should be 
kept warm and only receive water twice a week until 
the new leaves are pushed in the spring. 
ss 
FiG, 475. JAPANESE DWARFED TREES. 
1, PINUS DENSIFLORA; 2, CRYPTOMERIA JAPONICA; 3, THUYA OBTUSA. 
JAPANESE OAK. Sce Quercus glabra. 
_JAPANESE PAGODA-TREE. See Sophora 
japonica. 
JAPANESE PEPPER. See Zanthoxylum 
piperitum. 
JAPANESE TOAD LILY. See Tricyrtis hirta. 
JAPANESE YEW. See Cephalotaxus. 
JASIONE. Syn. Ovilla. To the species described 
on p. 206, Vol. II., the following should be added: 
J. humilis (dwarf). jl. blue, rather pretty, on short, terminal 
peduncles. July and August. J. linear-obovate, flat, entire ; 
radical ones approximate, disposed in a rosette. Stems simple, 
ascending. h. about 6in. Pyrenees, &ec., 1824. 
JASMINE, BOX. 
JASMINE, ROCK. 
JASMINUM. The hardy summer-flowering kinds 
should have their shoots thinned ont in early summer, so 
that the remaining ones may have ample opportunity of 
becoming thoroughly matured, by which they are enabled to 
carry a goodly display of blossom. The winter-flowering 
sorts should be attended to in February, soon after the 
floral display is over. Cut away the old, exhausted 
wood and weakly shoots to make room for vigorous 
growths, as it is on the young wood that the flowers 
are produced. When plants are trained to walls, arbours, 
&c., a pleasing effect is obtained by 
planting some of the small, green- 
leaved Ivies in association, as the 
latter form an admirable setting for 
the rich golden-yellow flowers of the 
Jasmine; and if the vigorous shoots 
of the latter are secured to the wall, 
&c., and the young growths allowed 
to hang gracefully, the effect at 
flowering-time is very fine. 
To the species described on pp. 
207-8, Vol. II., the following shonld 
be added : 
J. PEG (related). A form of J. ofjici- 
nale. 
J. angulare (angular-stemmed). (/. 
white, disposed in terminal cymes; 
calyx teeth short, ovate, acute ; corolla 
tube lin. to 14in. long, the limb of five 
or six spreading, lanceolate lobes. 1. 
trifoliolate. Stems angular. South 
Africa, 1886. An ornamental, scram- 
bling, greenhouse shrub. (B. M. 6865.) 
J. luteum (yellow). A synonym of 
J. fruticosum, 
J. nitidum (shining). /l. white, fragrant, 
Zin. long; racemes short, few-flowered. 
Z. simple, lanceolate, Sin. long. Stems 
thin. Admiralty Islands, 1898. Stove 
climber. 
J. polyanthum (many-flowered). 7. 
pink outside, white within, very strongly 
scented ; corolla about 14in. long, with 
a Jong tube. J. opposite, pinnate ; 
See Phillyrea. 
See Androsace. 
leaflets five to seven, lanceolate, 
acuminate, coriaceous. Stems long, 
sarmentose. Yunnan, China, 1891. 
Greenhouse shrub. (R. H. 1891, f. 69.) 
JATEORHIZA. Male flowers 
in long, slender, axillary, racemose 
panicles, usually sessile on the short 
lateral branches; females in simple 
or nearly simple racemes. Leaves 
large, membranous, palmately lobed. 
J. Columba is the correct spelling 
of J. Calumba. 
JATROPHA. Physic Nut. To 
the species described on p. 209, 
Vol. IL., the following should be 
added : 
J. gossypiifolia (Gossypium-leaved). 
a. of a beautiful reddish-purple, many 
in paniculate cymes. May to August. 
l. lobed above the middle, Sin. to 6in. 
broad; segments usually obovate, 
acuminate, the margins doubly serrated 
or crenate, densely glandular. Warm 
regions of America, 1699. (B. R. 746; 
L. B. C. 117.) 
J. hastata (halberd-shaped). The correct name of J. pan- 
durefolia. 
J. integerrima. The correct name is Manihot diversifolia. 
J. Manihot (of Linneus). A synonym of Manihot ulilissima. 
JEFFERSONIA. J. binata is the correct nime of 
the plant described on p. 208, Vol. Il., as J. diphylla. 
JEHLIA. Included under Lopezia (which see), the 
correct name of J. fuchsioides being L. macrophylla. 
JERUSALEM CHERRY. See Solanum Pseudo- 
capsicum. 
JESSENiA (named in hononr of Dr. Carl Jessen, 
Professor of Botany). Orp. Palme. A small genus 
i 
