Obdee 46.— LBGUMINOS^. 31 3 



6 T. stolon£ferum Muhl. Glabrous, creeping; branches axillary, ascending 

 short ; Ifts. broadly obcordate, denticulate ; stip. leafy, ovate-lanceolate, acuminate'; 

 fls. loose, umbellate-capitate ; cat. teeth not half the length of the cor. ; leg. about 

 2-aeeded. — Fields and woods, W. States. Sts. 6 to 12' long, several together. 

 Branches 3 to 4' high, generally with one head which is 1' diam. Lfts. 6 to 10" 

 by 5 to 9''. Fls. white, erect, but in fruit all reflexed. May, Jn. 



7 T. arv^nse L. Hds. cylindrical, very hairy ; cal. teeth setaceous, longer than 

 than the cor. , Ifts. narrow-obovate. — (I) A low plant in dry, sandy fields. Me. to 

 Fla. Sts. much branched, round, hairy; 6 to 12' high. Lvs. hairy, on short 

 petioles, of 3 narrow Ifts., j to 1' long. Hds. of white or pale red fls., 1' long, 

 very soft and downy, the slender, equal calyx teeth being densely fringed with 

 fine silky, reddish hairs, and projecting far beyond the corolla. Jl. — Aug. § Eur. 



8 T. pratense L. Red Clover. Ascending, thinly hirsute; Ifts. spotted, oval, 

 entire; stip. ovate, cuspidate-acuminate; heads sessile; lower tooth of the cal. 

 longer than the four others which are equal. — If This is the common red clover 

 so extensively cultivated in grass lands, with herds' grass (Phleum pratense) and 

 other grasses, and often alone. Sts. several from the same root, hairy. Lvs. ter- 

 nate, the Ifts. ovate, ligliter colored hi the center, entire and nearly smooth. Fls. 

 red, rarely white, sweet-scented. All Summer. § Eur. 



9 T. medium L. Zig-zas Cloyek. St. suberect, branching, flexuous; nearly 

 glabrous; Ifts. not spotted, oblong or elhptical, subentire; stip. lanceolate, acumin- 

 ate; hds. ovoid-globous, pedunculate; cal. teeth setaceous, hairy. — 2| In meadows, 

 Danvers, Mass. (Oakes). Hds. of fls. larger than in T. pratense. Cor. deep pur- 

 ple. Lvs. of a uniform green. § Eur. 



10 T. inoarn^tum 1. St. erect, flexuous; Ifts. ovate-orbicular, obtuse or 

 obcordate, sessile, crenate villous; spiles dense, oblong, obtuse, pedunculate; caL 

 teeth setaceous, villous. — (I) A fine species from Italy, occasionally cultivated as 

 a border flower, and has been proposed (Dr. Dewey Rep. Herb. PI. Mass.) for cul- 

 tivation as a valuable plant for hay. 



30. MEDICA'GO, L. Medick. (Gr. iiedutri, lucerne ;. from Media, its 

 native country 'i) Calyx 6-cleft ; corolla deciduous, vexillum free and 

 remote from the keel ; legume variously curved, or spirally coiled or 

 twisted. — Herbs or shrubs with pinnately 3-foliate lvs. 



* Pods smooth Nos, 1, 2, 8. ** Pods spiny Nos. 4, 5, 6. 



1 M. lupulina L. NoNE-strcH. Procumbent, pubescent; Ifts. obovaie, obtuse, cu- 

 neate at base; ped. much longer than the leaves, with am, oblong spike of small yel- 

 low flowers; pods reniform, 1-seeded. — ® Fields and waste grounds, Can. to Fla. 

 Sts. 6 to 20' long. Pods black when ripe, as large as a pin-head. May — Oct. 

 § Eur. 



2 M. sativa L. Lucerne. Erect, glabrous ; Ifts. oUong-oblanceolate, tootlied above, 

 mucronate; stip. lance-linear / jjed longer than the lvs., with an oblong rac. of large 

 violet fls.; pods spirally twisted, reticulated. — Z( Sts. 2 to 3f high, from a strong, 

 deep root. Highly valued in Europe as a forage plant, with us sparingly 

 cultivated. § Jn., Jl. 



3 M. scutellata L. Snails. Lfts. elliptical, denticulate, the lower obovate; 

 stip. ovate, dentate ; ped. 1 to 3-flowered, shorter than the leaf; pods, snail-shaped, 

 convex below, flat above, with about 6 concentric-spiral turns. — (D Gardens, 

 among flowers, cultivated for its curious pods resembling snail shols. JL 

 t § Eur. 



4 M. denticulata "Willd. Procumbent, glabrous ; Ifls. obovate, denticulate, and 

 often emarginate above ; stip. laciniate, setose ; ped. 1 to 3-flowered, shorter than 

 the leaves ; pods loosely spiral, with 2 or 3 turns, flattened, strongly reticulated, 

 the border echinate with a double row of hooked spines. — ® Waste grounds, here 

 and there. Sts. 1 to 2f long. Fla small (yellow in h. s.), purplish. Jn. § Eur. 



5 M. intertSzta L. Hedgehog. Lfts. rhomboidal, toothed; stip. laciniate; 

 ped. about 2-flowered ; leg. oval, 5 or 6-fold, spirally coiled, echinate, the margins 

 bordered with setaceous, reflexed, appressed prickles. — Gardens, and oocasioially 

 spontaneous. Cultivated like So. 3, for its curious pods. 



