LEGUMINOS^E. (PULSE FAMILY.) 129 



2. T. Stoloniferum, Muhl. (RUNNING BUFFALO-C.) Smooth, peren- 

 nial ; stems with long runners from the base ; leaflets broadly obovate or obcordate, 

 minutely toothed ; heads loose ; flowers white, tinged with purple ; pods 2- 

 seeded. Open woodlands and prairies, Ohio and Ky., west to Iowa and Kan. 



3. T. ripens, L. (WHITE C.) Smooth, perennial; the slender stems 

 spreading and creeping ; leaflets inversely heart-shaped or merely notched, ob- 

 scurely toothed; stipules scale-like, narrow; petioles and especially the pedun- 

 cles very long ; heads small and loose ; calyx much shorter than the white corolla ; 

 pods about 4-seeded. Fields and copses, everywhere. Indigenous only in 

 the northern part of our range, if at all. 



4. T. Carolinianum, Michx. Somewhat pubescent small perennial, 

 procumbent, in tufts ; leaflets wedge-obovate and slightly notched ; stipules 

 ovate, foliaceous; heads small on slender peduncles; calyx-teeth lanceolate, 

 nearly equalling the purplish corolla ; standard pointed ; pods 4-seeded. Waste 

 ground near Philadelphia, south to Va., Fla., and Tex. 



T. HYBRIDUM, L. (ALSIKE C.) Resembling T. repens, but the stems 

 erect or ascending, not rooting at the nodes ; flowers rose-tinted. Becoming 

 common. (Nat. from Eu.) 



* * * Flowers short-pedicelled in close heads, reflexed when old ; corolla yellow, 

 persistent, turning dry and chestnut-brown with age, the standard becoming 

 hood-shaped ; annuals, fl. in summer. 



T. AGRARIUM, L. (YELLOW or Hop-C.) Smoothish, somewhat upright 

 (6- 12' high) ; leaflets obovate-oblong, all three from the same point (palmate) and 

 nearly sessile; stipules narrow, cohering with the petiole for more than half its 

 length. Sandy fields and roadsides; N. Scotia to Va. ; also in western N. Y. 

 (Nat. from Eu.) 



T. PROCUMBENS, L. (Low Hop-C.) Stems spreading or ascending, pu- 

 bescent (3 - 6' high) ; leaflets wedge-obovate, notched at the end, the lateral at 

 a small distance from the other (pinnately 3-foliolate) ; stipules ovate, short. 

 Sandy fields and roadsides, common. Var. MENTIS, Gray, has smaller heads, 

 the standard not much striate with age. (Nat. from Eu.) 



10. ME LI LOT US, Tourn. MELILOT. SWEET CLOVER. 



Flowers much as in Trifolium, but in spike-like racemes, small ; corolla de- 

 ciduous, free from the stamen-tube. Pod ovoid, coriaceous, wrinkled, longer 

 than the calyx, scarcely dehiscent, 1 - 2-seeded. Annual or biennial herbs, 

 fragrant in drying, with pinnately 3-foliolate leaves , leaflets toothed. (Name 

 from fie At, honey, and A euro's, some leguminous plant.) 



M. OFFICINALIS, Willd. (YELLOW MELILOT.) Upright (2-4 high); 

 leaflets obovate-oblong, obtuse; corolla yellow; the petals nearly of equal 

 length. Waste or cultivated grounds. (Adv. from Eu.) 



M. ALBA, Lam. (WHITE M.) Leaflets truncate; corolla white; the 

 standard longer than the other petals. In similar places. (Adv. from Eu.) 



11. MEDIC A GO, Tourn. MEDICK. 



Flowers nearly as in Melilotus. Pod 1 - several-seeded, scythe-shaped, in- 

 curved, or variously coiled. Leaves pinnately 3-foliolate; leaflets toothed; 

 stipules often cut. (MTjSi/c^, the name of Lucerne, because it came to the 

 Greeks from Media.) 



M. SATIVA, L. (LUCERNE. ALFALFA.) Upright, smooth, perennial ; leaf- 

 lets obovate-oblong, toothed; flowers (purple) racemed ; pods spirally twisted. 

 Cultivated for green fodder ; spontaneous from Mass, to Minn, and Kan. 

 (Adv. from Eu.) 



