DICOTYLEDONOUS PLANTS 123 



Vin. 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 * 



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 and 1). 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. Pod flat, long, many-seeded. 



1. C. canariensis, Steud. A shrub with many rather stiff, erect, 

 slender branches. Leaves abundant, very small, covered with soft 



