590 ARBORETUM AND FRUTICETUM. PART 11], 
Variety. 
=. C. a. 2 incarnatus has flesh-coloured flowers, or flowers very slightly 
tinged with reddish purple. This variety was introduced in 1818; 
and reproduces itself from seeds, but it varies much in the quantity 
of colour in the flowers. 
§ ii, Labéirnum Dec. 
Derivation. A name applied by Pliny to some species of Cftisus. 
Sect. Char. Calyx campanulate. Pod many-seeded, not dilated at the upper 
suture. Flowers yellow. Branches leafy and unarmed. (Dec. Prod., ii, 
p- 153.) 
*% 2. C. Lasu’rnum LL. The common Laburnum. 
Identification. Lin. Sp. 1041.; Dec. Prod., 2. p. 153. ; Don’s Mill., 2. p. 154. 
Synonymes. C. alpinus Lam. Fl. Fr.,2. p. 621.; Bean-trefoile Tree, and Peascod Tree, Gerard; Pea 
Tree, Scotch ; Golden Chain; l’Aubours, faux E/bénier, Arbois, or Arc-Bois, Fr.; gemeine Boh- 
nenbaum, Gev. 
Derivation. ‘The name of L’Aubours, which is given to this tree in Dauphiné and Switzerland, is 
supposed by Du Hamel to be a corruption of the Latin word daburnum The word Arbois is 
a corruption of arc-bo7s, the wood of this tree having been used by the ancient Gauls to make . 
their bows ; and being still so employed by the country people, in some parts of the Macon- 
nois, where these bows are found to preserve their strength and elasticity during half a century. 
The name of False Ebony is applied to the wood, from the blackness of its heart-wood _ The 
German name signifies Bean Tree, and both it and the English and Scotch names of Bean- 
trefoil and Pea Tree have reference to the shape of the leaves and the legumes. The name 
_of Golden Chain alludes to the length of the drooping racemes of flowers, which, as Cowper 
elegantly describes them, are “ rich in streaming gold.” . 
Engravings. Jacq. Aust., t.306.; Curt. Bot. Mag., t.176.; N. Du, Ham. 5. t. 44. J. Bauhin Hist., 
1, p. 3. and 361. icon. 
Spec. Char., $c. Branches terete, whitish, Leaves petiolate ; leaflets ovate- 
lanceolate, pubescent beneath. Racemes pendulous, simple. Pedicels 
and calyxes clothed with closely pressed pubescence, Legume linear, 
many-seeded, clothed with closely pressed pubescence. A tree, a native 
of Europe, on the lower mountains of the south of Germany, and of Swit- 
zerland, where it grows to the height of 20ft. or upwards. It was intro- 
duced in 1596, and produces its fine yellow flowers in May and June. 
Varieties. 
* C. L. 2 quercifolium Hort., C. L. 2 incisum, has sinuated leaflets, not 
unlike the leaves of the common oak. (See our plate of this variety 
in Vol. IT.) 
* C. L. 3 péndulum Hort. has pendulous branches. 
¥ C. L. 4 foliis variegatis has variegated leaves; but it is a plant of no 
beauty. 
* C. L. 5 purpurascens Hort., C. L. purptreum Hort., C. Adami, Poir., 
C. LZ. coccineum Baum. Cat., the purple Laburnum, the scarlet 
Laburnum, is a hybrid between C. Labiarnum and C. purpureus, 
in which the flowers are of a reddish purple, slightly tinged with 
buff, and are produced in pendent spikes, 8 in. or more long. It 
was originated in Paris, in the nursery of M. Adam, in 1828; it 
was introduced into England about 1829, and has been a good 
deal cultivated. It is a very vigorous, and somewhat erect and fas- 
tigiate, growing variety, having produced shoots from 6 ft. to 9 ft. long 
in one season; but, though it has been highly spoken of by some 
cultivators, in point of beauty, it cannot be recommended. A re- 
markable fact respecting this hybrid is stated by Mr. Rivers, in the 
Gard. Mag. for May, 1836. When he was in the Jardin des 
Plantes, at Paris, in the autumn of the year 1835, a fine plant of 
this variety was shown to him, which appeared to be half C. pur- 
pureus and half C. Labtrnum. On examining the plant more 
minutely, he ascertained that half the plant had partially returned to 
the habits of one of its parents, the C. purptreus; while the remain- 
ing part retained the hybrid character in which, as is well known, 
the habit and foliage of C. Labirnum prevail. A similar anomaly 
