259 
AN ENCYCLOPADIA OF HORTICULTURE. 
Levisticum— continued. ; Leyssera—continued. i 
obovate-cuneate leaflets. It is of no horticultural value, | through North Africa, as far as Western Asia, Flower- 
and is rarely seen out of botanic gardens. A form 
having variegated leaves is offered by Continental seeds- 
men. 
LEWISIA (named after Captain M. Lewis, 1774- 
1809, who accompanied Captain Clarke to the Rocky 
Mountains of North America). ORD. Portulacee. A 
monotypic genus, the species being a very curious and 
handsome hardy herbaceous perennial, well adapted for 
growing on rockwork, in crevices where the roots can 
obtain plenty of moisture without stagnancy. It 
flourishes best in a sunny spot; indeed, this is the 
only situation in which it will produce flowers. During 
hot summers, Lewisias should have a daily watering. 
Propagated by seeds; or by divisions of the roots, in 
spring. 
L. rediviva (revived). J. pink, witha nearly white centre, from 
Sin. to 4in. across; calyx finely veined with red; scapes one- 
flowered. Summer. J. in rosettes, linear, bluntish, succulent, 
eap iA on the appearance of the flowers. Roots edible, taper: 
ing, fleshy. A. 3in. to 4in. North-Western America, 1826. 
Fig. 400. (B. M. 5395.) 
LEYCESTERIA (named after William Leycester, 
once Chief Judge of the principal native court under 
the Bengal Presidency). ORD. Caprifoliacee. A mono- 
typic genus, the species being a very handsome hardy, or 
nearly hardy, deciduous shrub, with a rambling habit 
and elongated fistular branches, which rise from scaly 
buds. It is a distinct and interesting plant, well 
deserving of a much more extended cultivation than it 
now enjoys. L. formosa thrives in any moderately good 
garden soil, and is propagated by cuttings of the short 
young shoots, made in spring; by older ones, made in 
autumn, and placed under a handlight ; or by seeds, sown 
in spring. 
Fie. 401. FLOWERING BRANCH OF LEYCESTERIA FORMOSA. 
middle- 
L. formosa (handsome).* fl. white, with a tinge of pu 
in a of fives 
sized, sessile, in fi fe ore whor 
and sixes, 1 — 8 pa pends A leafy 1 racemes, which 
rminate the branches 5 funnel-shaped, 
Mv the tube gibbous above the wed ‘and t the limb campanu- 
late and divided into five ovate nearly ual lobes ; bracts 
ape pu n generally six under each whorl of 
ava J. o ite. on Te te, acuminated, 
petiolate, smooth, Tentire. . Aft. Himala: 
Pheasants are said to be 1 N en fruit of this species, 
which is — as a good covert plant. See ae. 401. 
(B. M. 3699. 
LEYSSERA (named after T. W. Laitse, 1731- 
1815, a German botanist). Including Longchampia. 
Syns. Asteropterus, Callicornia. ORD. Composite. A 
genus comprising four species of greenhouse evergreen 
herbs or shb-shrubs, three of which inhabit South 
Africa, and the other extends from Southern Spain, 
heads yellow, on long peduncles; involucre turbinate or 
campanulate. Leaves narrow, linear, or subulate, entire. 
Leysseras thrive in a compost of rough peat and loam. 
Propagated by half-ripened cuttings, inserted in sandy 
soil, during summer; or by seed. 
L. Pee: lia (hair-leaved), /l.-heads yellow; peduncles naked, 
ary, one-headed. June. J. ear subulate, filiform. Stem 
filiform, branched. R. 6in. Barbary, 1 
oides (Gna soyan like). 
involucre lanceolate. to Septem 
ciliate, rough. h. 2ft. Cape of Good Hope, 17 
(squarrose) A synonym of Helipterum gna- 
es sande orange; scales of 
er. l. linear, "subulate, 
SS. 
LHOTZEYA (named after Dr. John Lhotzky, a 
Viennese botanist, who travelled in Australia). ORD. 
Myrtacem. A genus comprising eight species of green- 
house evergreen Heath-like shrubs, limited to Australia. 
Flowers sessile or shortly pedicellate, solitary im each 
axil along the branches, or forming terminal leafy 
heads. Leaves scattered or rarely opposite, semi-terete, 
or three or four-angled, rigid, entire, glabrous or pubes- 
cent. G. acutifolia and G. violacea, the species best known 
to eultivation, thrive in a compost of loam, with the 
addition of a little peat and sand, Propagation is 
effected by cuttings, made from the young shoots when 
the base is a little firm, and inserted in sand, under a 
glass. 
acutifolia (acute-leaved). fA. 
sessile along the branches, June. 
mucronate, a about zin, long, ——. paki ty 
h. 1Aft. 1843. nt erect, pubescent, 
L. violacea out purplish, in the upper axils, forming 
dense — heads. a ty . alternate or scattered oblong, 
very obtuse, about jin. long, concave above, convex beneath. 
h, lft. 1843. Plant hairy, erect, bushy. 
LIABUM (probably a meaningless name, as is fre- 
quent with those given by Adanson). Including Parane- 
phelius and Sinclairia. Syns. Andromachia and Starkea. 
ORD. Composite. A genus comprising about forty 
species of herbs or shrubs, natives of tropical and sub- 
tropical America, and the Andes. Flower-heads yellow, 
radiating; involucre campanulate or hemispherical; achenes 
villous or rarely glabrous. Leaves opposite, entire, den- 
tate or lobed. L. uniflorum, probably the only species 
yet in cultivation, is a half-hardy alpine. It requires a 
compost of sandy loam and leaf mould, to which a 
little peat may be added. Propagated by divisions, in 
spring. 
e — fog (om Sone i r! brilliant Hera 
lobed. ern“ g (B. M. 5826, under name of Parane- 
phelius uniflorus.) ; 
LIATRIS Gaa al. tastes thie: 
Button Snake-Root. ORD. Composite. A genus com- 
prising about sixteen species of hardy perennial herbs, 
natives of North America. Flower-heads purplish or 
white, handsome, spicate, racemose, or panicled; scales 
of the involucre imbricated, appressed ; receptacles naked; 
achenes slender. Leaves alternate or scattered, narrow, 
entire, one to five-nerved. The species form exceedingly 
— or 1 nearly 
K 
pretty border plants, thriving in any moderately good 
light soil. Propagated by divisions, in spring; or by 
seeds, sown usually early in autumn. 
. elegans elegant; -heads AL ror disposed in spikes 1ft. 
ny ora summer and sre aap i: T spotted, rlabrons; 
ra en , three ag upper ones ligula 
sometimes spiny tipped. 
17 . 2ft. to Aft. 1787. (B. R. 
7.) 
L. graminifolia eee eh, 5 -heads purple, in the axils of 
the upper leaves or bracts, loosely spicate ; involucre about six- 
flowered. September. 
tee A i remotely dotted, a ciliate 
Aas pase. Stem simple. Root tuberous. h. Aft. asa 
dubia (doubtful). A variety with an upright and vi 
fke, wia, —— rather large anb voisi ; 
i orm; bracts of ot the involucre narrower and thinner 
2 in the type. (B J. 3823, under name of L. 1 
