812 Obdeb 46.— LBGUMINOS^ 



base, several-seeded. — Oriental, thornless shrubs or trees. Lvg. pal- 

 mately trifoliate. FIs. mostly yellow. 



1 Ii. VTilgare L. Golden Chain. Arborescent ; IJis. oblong-ovate, aciae ai 

 base^ acuminale; rac. simple, elongated, penduloas; leg. hirsute. — A small, oraa- 

 montal tree, lof high, from Switzerland. I'ls. numerous, large, in rac. If long, 

 f (Cytisus Laburnum L.) 



2 L. alplnum L. Arborescent; Ifts. oblong-ovate, rounded at lose; rar- 

 long, simple, pendulous; kg. glabrous. — A beautiful tree, 30f high, native of 

 various Alpino regions of Europe. Like the former it develops numerous bril- 



I liaiit, yellow fls., in long, drooping clu.sters. There are varieties ivith ochrok-u- 

 cous, white, and even purple fla 



29. TRIFO'LIUra, Tourn. Clover. {Gr.npulivXXov, (three-leaved); 

 Lat. trifolium ; Fr. irefle ; Eng. trefoil.) Caljx tubular or campaiiu- 

 kite, 5-toothed, persistent; petals inoro or loss tinited at the base, with- 

 ering; ve.xillum rcflexed ; also oblong, .shorter than the vexilluin ; 

 carina shorter than the ako; stamens 10, diadelphous (9 and 1); 

 legume short, membranous, mostly inJchiscent, covered by and scarcely 

 longer than the calyx, 2 to 4-sooded ; seeds roundish. — Herbs. Lvr. 

 palraately trifoliate ; Ifts. with straight, scarcely reticulated veins. Flf. 

 in dense heads or spikes. 



{J Flowers yollow, in small, dense, ronndislj heads Nos. 1, 2 



^ l''lower8 cyanic, — pedicellate, finally dellexed. (a) 

 — subses.sile, never ileflexcd. (b) 



a Heads Bmall, on stalks some t.-n times lonuer Nob. S. 4 



a Heads large, on stalks two or three times lonfjer No.s. 5, C 



b Calyx teeth phuno^e, longer than the whitish corolla No, 7 



b Calyx teeth shorter than the purple or roseate corolla.. -Nos. 8— i(] 



X T. procfimbens L. Yellow Clover. St. procumbent or ascending; lft.s. 

 obtuse or retuse, denticulate, terminal one petiolulate; slip, ovate-lanceolate acumin- 

 ate, mudi shorter than the petioles ; lids, small, subglobous ; cor. yellow ; sty. 3 or 

 i times shorter than the 1-seeded kg. — i'V In dry soils, N. II. to Ta. Sis. many 

 from the same root, slender, more or less pubescent, striate, 3 to 10' long, often 

 Euberect Lfts. 4 to 8" long, i to equally .is wide, lateral ones placed 1 to 2" be- 

 low the termiual one. IIAs. 2 to 3" diam., on slender peduncles 1' long. Fls. 

 at length retlexed. Jn., Jl. § Eur. 



2 T. agrarium L. St. ascending or erect ; lfts. often emarginate, denticulate, 

 all aubsessile; sii2i. linear-lanceolate, cohering with and longer than the petiole; hde. 

 ovoid-elliptic; sty. ahout equaling the 1-seeded kg. — (Tl Sandy fields, N. Eng. Sts. 

 C to 15' high, branched, minutely pubescent. Lfts. 5 to 10" by 1 to 3" Com- 

 inon petioles 3 to 10" long, the upper ones shorter than their stip. Hds. of tis. 

 twice larger than in the last, en peduncles about 1' long. Fls. at length retlexeiJ. 

 Jl., Aug. § Eur. 



3 T. Caroliniauum Mx. Slender, diffuse; Ift.s. cuneate-obovate, the middle 

 one obcordato ; stip. ovate-acuminate, foliaccous ; lids, long-stalked ; cal. teeth 

 thrice longer than its tube; leg. 4-seeded. — (1.1 Fields, S. Car. to Fla. and Tex., 

 almost forming a turf and poor pasturage. Sts. G to 12' long, many from one 

 root. Y\s. white or purphsh. Fed. 1 to 0' long. Mar — May. 



4 T. repens L. White Clover. Shamrock. St. ereeping, diffuse ; lfts. obft^r- 

 date, denticulate ; stip. narrow, scario\ts ; hds. subumbellate, on very long, ax il- 

 lary peduncles; leg. about 4-seoded; cal. teeth shorter tJian the tube. — 11 In oB 

 soils, mountainous, meadow or rocky, througliout X. Am. Sts. several from tie 

 same root, extending G to 12', rooting at the joints. Fed. angular, much longer 

 than the Ivs. Fls. white. May — Sept. Highly valued for paiturage. 



5 T. refl^xum L. Buffalo Clover. Pubescent; ascending or procumbent; 

 lfts. obovaie or oblong-obovate, serrulate, some of them emarginate ; stip. leafy, 

 semicordate ; hds. umbel-like ; col. teeth nearly as long as the cor. ; leg. about 

 4-sceded. — ^ Prairies and meadows, W. and R. States. St. 8 to 16' high. Lft.s. 

 subsesaile, 7 to 8'' by 4 to 5" ; petioles 1 to 2' long. Ilds. large and handsomo. 

 Ped. 1 to 3' long. Fls. roso-red, turning brownish when .deflected. Apr. — Jn. 



