OsDxa 46.— LEGUMINOS^. 313 



6 T. Btolonfferum Muhl. Glabrous^ creeping; branches axillary, ascending 

 short ; Ifta. iroadiy obcordaie, denticulate ; slip, leafy, ovate-lanceolate, acuminate ; 

 fli). loose, umbellate-capitate ; cat teeth not }uilf ilte Uitgih of t/ie cor. ; leg. about 

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

 Branches 3 to 4' high, generally with one hedd 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. , lfts. narrow-obovate. — ;r. A low plant in drj-, sandy fields, Me. to 

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

 petioles, of 3 narrow lfts., i, to 1' long. Hda. of white or pale red fls., 1' long, 

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

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



8 T. pratSnse L. Bed Cmver. Ascending, thinly hirsute; lfts. spotted, ov;\l, 

 entire; slip, ovate, cuspidate-acuminate; lieads sessile; lower tooth of the cal. 

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

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

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

 nate, the Ills, ovate, lighter colored in the center, entire and nearly smooth. Fl.s. 

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



9 T. medium L. Zig-zag Clovei!, St. suborect, branching, flexuous; nearly 

 glabrous; lfts. not spoiled, oblong or elliptical, subentiro; slip, lanceolate, acumin- 

 ate; hds. ovoid-glabous, pedunculate; cal. teeth setaceous, hairy. — H In meadows, 

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

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



10 T. incarnitum L. St. erect, flexuous; lfts. ovate-orbicular, obtuse or 

 obcordate, sessile, crenate villous; spike dense, oblong, obtuse, pedunculate; cal. 

 tooth setaceous, villous. — Cl) A fine species from Italy, occasionally cultivated a« 

 a border flower, and has been proposed (Dr. Dowcy Eop. Herb. PI. Mas-s.) for cul- 

 tivation as a valuable plant for hay. 



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

 native country ?) Calyx 5-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. 1,3, 3. ** Pods spiny Nos. 4, 5, C. 



1 M. lupulfna L. None-such. Procumbent, pubescent; lfts, obovate, obtuse, cu- 

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

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

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

 §Eur. 



2 M. sativa L. Lucerne. Erect, glabrous ; lfts. oblong-oblanceolaie, toothed above, 

 mucronate; stip. lance-linear ; ^ed ionger thaa t\\a lvs., with an oblong rac. of large, 

 violet fls.; pods spirally twisted, reticulated. — V.- Sts. 2 to 3f high, from astrong, 

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

 cultivated. § Jn., Jl. 



3 M. scutellita L. S.vaim. Lfts. elliptical, denticulate, the lower obovate; 

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

 convex below, flat above, with about 6 concentric-spiral turns. — 3) Gardens, 

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

 + § Em-. 



4 M. denticul^ta 'Willd. Procumbent, glabrous ; lfts. obovate, denticulate, and 

 often emarginate above ; stip. lacinlato, setose ; ped. 1 to 3-fiowered, shorter than 

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

 tite border echinate with a double row of hooked spines. — (D "Waste grounds, here 

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



5 M. intertSzta L. HEDOEUoa Lfts. rhomboidaX, toothed; stip. laciniato; 

 ped. about 2-flo wered ; leg. oval, 5 or 6-fold, spirally coiled, echinate, {he margina 

 bordered with setaceous, reflexed, oppressed prickles. — Gardens, and occasionally 

 spontaneous. Cultivated like No. 3, for its curious pods. 



