350 



FABACEAE. 



Vol. II. 



I. Genista tinctoria L. Dyeweed or Green weed. 

 W'uad-waxL'n. Base JJroom. h"\g. 2466. 



Genista liiicloria L. Sp. PI. 710. 175J. 



Branching from the base, not thorny, the sterile shoots de- 

 cuinbent. the flowering ones erect, stiff, i-2 high, branched 

 above, sUghtly pubescent. Leaves i-foholate, sessile, lanceo- 

 late or elliptic-lanceolate, -ii' long, glabrous or with scat- 

 tered hairs, acute at the apex, narrowed at the base, entire, 

 shining; stipules none; racemes numerous, terminal, i'-2' long, 

 few-flowered ; bracts ovate-lanceolate, acute ; flowers yellow, 

 nearly sessile, about 6" long; calyx bracteolate at the base, its 

 3 lower teeth narrower than the 2 upper; pod about i' long, 

 flat, glabrous. 



On dry hills, Maine and Massachusetts to eastern New York. 

 Naturalized from Europe. Native also of northern 'Asia. Sum- 

 mer. Known also as wood-wax. green-wood, dyer's-broom. dyer's 

 green-weed, dyer's-whin and alleluia. 



9. CYTISUS [Tourn.] L. Sp. PL 739. 1753. 



Shrubs, often stiff or spiny, with 3-foliolate or i-foliolate leaves, and showy clustered 

 flowers, mainly in terminal racemes. Calyx 2-lipped, campanulate, the teetli short; standard 

 ovate or orbicular; wings oblong or obovate ; keel straight or curved. Stamens monadelphous ; 

 anthers alternately larger and smaller. Ovary sessile, many-ovuled ; style incurved. Pod flat, 

 oblong or linear, pubescent or glabrous, several-seeded; seeds strophiolate. [From Cythrus, 

 one of the Cyclades, where the first species was found.] 



About 45 species, natives of Europe, western Asia ant-l northern Africa, the flowers very slightly 

 different from those of Genista. Type species: Cytisiis lursiitus L. 



I. Cytisus scoparius ( L. ) Link. Broom. Green or 

 Scotch Broom. Ilagvveed. Fig. 2467. 



Spartiuin scopariuiii I.. Sp. PI. 709. 1753- 



Cytisus scoparius Link, Enum. Hort. Berol, 2 : 24U 1822. 



Sarothamnus scoparius Wimm. : Koch, Syn. Fl. Germ. 152. 1837. 



Stiff, wiry, 3-5 high, much branched, nearly glabrous. 



Branches elongated, straight, nearly erect, angled ; lower leaves 



petioled, 3-foliolate, the leaflets obovate, acute, or mucronate- 



tipped, 3"-s" long, entire, narrowed at the base ; upper leaves 



sessile, often i-foliolate ; stipules none ; flowers bright yellow, 



nearly i' long, in elongated terminal leafy racemes; pedicels 



solitary or 2-3 together, 3"-$" long ; pod flat, glabrous on the 



sides, but ciliate on the margins, r-2' long; style slender, at 



length spirally curved. 



In waste places, Nova Scotia to Massachusetts, Delaware and 

 Virginia. Also in California and on Vancouver Island. Ad- 

 ventive or naturalized from Europe. Bannal. Besom. Summer. 



10. MEDICAGO [Tourn.] L. Sp. PI. 778. 1753. 



Herbs (a single shrubby species in southern Europe), with small 3-foliolate leaves, and 

 small yellow or violet flowers in axillary heads or racemes. Leaflets commonly dentate, pin- 

 nately veined, the veins terminating in the teeth. Calyx-teeth short, nearly equal ; standard 

 obovate or oblong; wings oblong; keel obtuse. Stamens diadelphons. the i opposite the 

 standard separate from the other 9; anthers all alike. Ovary sessile or nearly so, i-several- 

 ovuled ; style subulate. Pod curved or spirally twisted, reticulated or spiny, indehiscent, i-few- 

 seeded. [Greek, Medike, from Medea, whence the Medic, or Lucerne, was derived.] 



About 50 species, natives of Europe, Asia and Africa. Type species : Medicago sativa L. 



Perennial ; flowers violet, conspicuous. i. M . sati-'a. 

 Annual : flowers bright yellow, small. 



Pod I -seeded, curved, not spiny. 2. M. lupulina. 

 Pod several-seeded, spiny on the edges, spirally twisted. 



Pod loosely coiled, not furrowed on the edge. 3. M. hispida. 



Pod densely coiled, its edge furrowed. 4, J|/, arabica. 



