DICOTYLEDONOUS PLANTS 123 
VII. LUPINUS, Tourn. 
Biennial or perennial herbs. Leaves simple or palmately 
compound. Flowers showy, in terminal racemes. Calyx 
2-lipped, 5-toothed. Standard round, with the sides reflexed, 
keel scythe-shaped. Stamens monadelphous, anthers alter- 
nately oblong and roundish. Ovary sessile; matured pod 
oblong, several-seeded, often compressed between the seeds.* 
1. L. perennis, L. Perennial ; stem erect, downy, 12-18 in. high. 
Leaves palmately 7-9 foliate; leaflets obovate or oblanceolate, obtuse 
and mucronate at the apex, slightly downy ; petiole slender ; stipules 
small. Racemes terminal, slender, loosely many-flowered. Flowers 
purple, blue, pink, or white. Pod oblong, densely downy, few-seeded. 
Dry, sandy soil.* 
IX. LABURNUM, Benth. 
Trees or shrubs. Leaves of 3 leaflets, with very small 
stipules or none. Flowers golden-yellow, in slender, drooping 
racemes. Calyx 2-lipped, the upper lip 2-toothed, the lower 
3-toothed. Standard ovate, upright, of the same length as 
the straight wings. Stamens diadelphous (9 and1). Ovary 
and pod somewhat stalked above the calyx, several-seeded. 
1. L. vulgare, Gris. LABURNUM, GOLDEN CHAIN. A small tree, 
with smooth, greenish bark. Leaves with slender petioles ; leaflets 
oblong-ovate, acute at the base, taper-pointed, downy beneath. 
Flowers showy, in graceful racemes. Cultivated from Europe. 
X. CYTISUS, L. 
Shrubs, rarely spiny. Leaves of 1—3 leaflets or none ; stip. 
ules very small. Calyx 2-lipped, the upper lip slightly 
2-toothed, the lower 3-toothed. Keel straight or a little 
curved, blunt, turned down after flowering. Stamens with 
their filaments all united ; anthers every other one short and 
attached by its center, the alternate ones long and fastened 
by their bases. Style curved in, or, after the flower opens, 
coiled up. fod flat, long, many-seeded. 
1. C. canariensis, Steud. A shrub with many rather stiff, erect, 
slender branches. Leaves abundant, very small, covered with soft 
