642 ARBORETUM AND FRUTICETUM. PART Ill 
A. Geniste Dufour., A. spléndens Willd, A. Zndica Lour., and A. sericea Lag., are species which 
have not yet been introduced. A. Aeterophgila L. is a procumbent species, a native of ortugal and 
Spain, introduced in 1768, but now, it is believed, lost. 
Medicago L. is a genus chiefly consisting of her- 
baceous plants ; but there are one or two shrubs 
or undershrubs belonging to it that may be con- 
sidered half-hardy. The species are mostly na- \\(s 
tives of the south of Europe, the Levant, and 
the north of Africa. M. arborea L. (N. Du 
Ham., 4.‘t. 4., and our jig. 338.), the lucerne en 
arbre of the French, is a native of Italy, where 
it grows to the height of 6 ft. or 8 ft., and flowers 
from May to November. It has been known to 
stand out 5 or 6 years in dry borders, without 
any protection, and to attain a considerable size 
when trained against a wall. In the Chelsea 
Botanic Garden there is a plant 11 ft. high, with 
a stem 62in. in diameter; there is also one of 
considerable size in the Kew Garden; and 
there was formerly a large one trained against a 
wall in the gardens at Syon. 
Melilotus arborea Castagne in Litt. (Dec. Prod., 
2. p. 187., Don’s Mill., 2. p. 177.) is a shrub, with 
trifoliolate leaves, and stipules adhering to the 
petiole; cultivated about Constantinople, where it grows 15 ft. high, with a trunk 3 in. in diameter. 
It was introduced into this country in the year 1826, and produces its white flowers from July to 
pe ta taal but it is seldom to be met with in collections. It is, doubtless, as hardy as Medicago 
arborea. 
Lotus L. contains two or three species, somewhat ligneous, that might deserve 
trial against a conservative wall. They are natives of the south of Europe, 
the north of Africa, and the Cape of Good Hope. Lotus créticus L. (Cav. 
Icon., 2. p. 44, t. 156.) isa native of Syria, Candia, and Spain. It is a slender 
shrub, not higher than 12 ft. or 2ft., producing yellow flowers from June to 
September. L. anthylloides Vent. Malm., p. 99. t. 92., is a native of the 
Cape of Good Hope, with yellow flowers. L. atropurpireus Dec. has dark 
purple flowers. L. jacobe‘us L. (Bot. Mag., t,79., and our fig. 339.) is a 
native of the Cape De Verde Islands, and has been in culture since 1714. 
It grows to the height of 3 ft., with a dark purple corolla, almost black, and 339 
the standard yellowish. There;is a variety with yellow flowers, ‘This, 
and all the other species of Lotus, flower a great part of the year, and are, 
consequently, all very desirable for low conservative walls, of from 3 ft. to 
5ft. in height. L. Broussonétii L. and L, spectdbilis are splendid Teneriffe 
apace introduced by P. B. Webb, Esq,, and to be procured in the Milford 
ursery. 
CarmichaeYia australis R. Br. (Bot. Reg.,912.) is a New Zealand shrub, 
with flat branches, and bluish flowers. ‘The leaves, which are trifoliolate { 
or pinnate, drop off soon after they’are expanded. This shrub grows to the 
height of 6 ft. or 7 ft., lowering profusely from May to September. From its 
native country, there can be no doubt but it is as hardy as Medicago ar- 
borea, and that it would thrive equally well against a conservative wall. 
Psoralea L. is a genus of herbaceous and suffruticose species, 64 of which 
have been described: they are natives of the south of Europe, Africa, and 
North America ; and some few of the ligneous species are half-hardy. 
P. bituminosa L. (Lam. Iil., t. 614. f. 1.) is a native of the south of Europe, in exposed places, and 
has been an inhabitant of our green-houses since 1670. It is common in therocks between Genoa and 
al Nice, where it is seldom seen higher than 2 ft. or 3 ft. ; 
but, planted out inthe open border, it attains twice or 
thrice that size. The flowers smell like black currants, 
and the leaves like bitumen. P. glanduldsa L. (Bot. 
Mag.,t. 990., and our figs. 340, 341.), is a native of Chili ; 
and, in gardens about London, it seems very nearly 
hardy. The flowers are bluish purple, and the 
wings and keel white, The whole plant, when bruised, 
has the smell of rue. In its native country, the leaves 
are applied to heal wounds, and an infusion of the 
roots ‘is given as a purgative. There is a plant of 
; this species in the open ground, in the Hammersmith 
Nursery, which has stood there several years, is now 
7 ft. high, and flowers and ripens seeds every year ; 
one in the garden of the Horticultural Society has stood 
against a wall since 183], without protection: it grows 
rapidly, and appears quite hardy. P. pubéscens Balb. 
(Bot. Reg., t. 968.) is a native of Peru, with bright blue 
Delil. is a native of Upper Egypt ; and P..obtusifolia Dee. is a native of the Cape 




flowers. P. plicata 
of Good Hope ; but neither has yet been introduced. There are some other ligneous species men- 
tioned in Don’s Miller as not being sufficiently known. 
Indigéfera L. is a genus including above 140 species, among which is I, tinctdria, which produces 
the common indigo of the shops. Some of the species are ligneous, and natives of Africa or Asia ; 
but, as they are generally of low growth, they are not very desirable for planting out against a low 
wall. I. denudata Jacq. (Bot. Cab., t. 500., and our jig. 342.) has red flowers, streaked with dark lines. 
It grows to the height of 2ft., and flowers from May till July. 
I. ame’na Ait. (Bot. Reg., t. 300.) grows to the height of 3 ft., and has dark red flowers, which are 
produced in May and June. J. atropurpurea Hamilt. is a native of Nepal, introduced in 1816. It 
res to the height of 5 ft. or 6ft., and produces its dark shining purple flowers in July and August. 
. australis Willd. (Bot. Cab., t. 149., and our fig. 343.) is a native of New Holland. It grows to the 
height of 4ft., and has rose-coloured flowers. J. syludtica Sieb. (Bot. Mag., t. 3000.), the I. angulata of 
Bot. Reg., t. 2758., is also a native of New Holland, and grows to the height of 8 ft. It isa very showy 
plant, producing its flowers from May to June. Various other green-house species, already intro- 
duced, will be found enumerated in our Hortus Britannicus ; and many, not introduced, are described 
in Don’s Miller. 
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