238 
PLORtCULTURAL NOTICES. 
leras. It derives its name from the broad ray-like divisions of the spines, which are sometimes 
very remarkable. But in this respect it varies according to the circumstances under which it 
grows. The leaves, too, vary in form from roundish-ovate to ovate, and even subcordate. They 
always have a hard, dry, curled appearance, as if the species were accustomed to a rigorous i 
climate.” It is cultivated in the garden of the Horticultural Society. The English name is 
the Ray-spined Berbery. Bot. Reg., 55. 
Boldo'a fra' grans, a small greenhouse tree or shrub, yielding a highly aromatic odour. It 
has round, grey, slightly downy branches, and roundish ovate evergreen opposite leaves, placed 
on short stalks, and studded with hard points, which give them a very rough surface. The flowers 
are dioecious, pale greenish-white, in little terminal panicles, each branch of which is rather regu-j 
larly three-parted. In this country the male only is known. The fruit, which is only known in 
a dried state, is a little drupe, about as large as a haw, apparently black, and extremely fragrant.| 
It contains a single seed, suspended from near the apex of the cell. In Chili the plant is much 
valued ; its wood forms a charcoal preferred by smiths to all others, and the aromatic fruit is 
eaten by the natives.” It is said to grow from fifteen to twenty-five feet high. It succeeds in| 
sandy loam and peat with ordinary greenhouse treatment. The leaves are apt to be scorched if 
exposed to the sun. Bot. Reg ., 57. 
Callia'ndra Twe'ediei. “ An elegant shrub belonging to a genus of Mimosese, distinguished| 
by the great length and frequently rich red colour of the stamens, whence the appropriatej 
Calliandra of Bentham (callos, beautiful, and aner-andros, the stamen). Sixty species are 
enumerated by Mr. Bentham in the London Journal of Botany, all inhabitants of the AmericaUjj 
continent. They have, Mr. Bentham observes, the corolla of AlbizziOf the stamens of an Inga, 
and a pod dififerent from that of any other genus ; the valves of the pod rolling back elastically,, 
in a very remarkable manner. The present species is a native of Rio Grande, and Rio Jaqury,- 
in South Brazil, where it was detected by the indefatigable botanist whose name it bears ; found 
also by Mr. Sellow.” Plants raised by Mr. Jennings from seeds sent to Lord Derby, at 
Knowsley, produced flowers last March : since then the species has also flowered in the Royal 
Botanic Gardens of Kew. It requires a stove heat, and to be kept pretty moist. According to|; 
Tweedie, it is a small tree, or in mountainous places a low shrub ; the plants at Kew seem disposedl 
to trail with their branches. Bot. Mag., 4188. [Possibly the branches would have a less! 
attenuated growth, if the plants were placed in a somewhat lower temperature, and kept near 
the glass roof. The Inga pulcherrima figured by us some time ago, ranks under this genus.] 
Exoste'ma longiflo'rum. This plant was received at Kew from Mr. Makoy, of Liege, 
under the name here adopted. It is evidently the same plant with the Cinchona longiflord 
figured by Lambert, although some trifling discrepancies exist. In Mr. Lambert’s representa-' 
tion the leaves are narrower, the flowers rather smaller, and the segments of the calyx and 
corolla are too short, probably occasioned by being drawn from an imperfect specimen in the 
Herbarium of Aublet. Lambert gives Guiana as the native country of the species ; while DeJ 
Candolle, on the authority of Richards, says it is indigenous to St. Domingo. Be that as it mayj 
it constitutes a very pretty shrub, flowering freely and copiously, and the blossoms are fragrantl 
and remarkable, not only for their great length, but for their change of colour, at first pure 
white, gradually becoming red. Exostema is a genus separated from Cinchona, chiefly on| 
account of its exserted stamens, whence the name exo, without, beyond, and stemma, a. crown. 
E. longiflovum blossoms in June, and continues for some weeks in beauty.” It is a low much 
branched shrub, about a foot and a half high, with lanceolate sharply acuminated leaves, tapering 
into a very short footstalk, and of a texture between coriaceous and membranaceous. The flowers 
with their long slender corolla-tube, are more singular than showy. Bot. Mag., 4186. [This 
'J 
plant has been long cultivated in the London nurseries under the erroneous title of Oxyanthu^ 
longiJlorus.'\ \ 
Echinoca'ctus pectini'ferus. It is the case,” writes Sir W. J, Hooker, “ with this small, |f 
but showy, Echinocactus , as with too many others in our collection ; descriptions can give no 
adequate idea of the varied forms of these plants, especially as regards the nature of the costse, 
the spines, and their arrangement in the areolm, of the flowers, &c. The present species flowered 
in the Royal Gardens of Kew in April, 1845, and was received from San Luis, Mexico, among 
many fine Cactem sent by Mr. Staines. So uncouth a looking trunk would hardly be expected 
