312 vMDfiR 46. LEGUMINOS^L 



'base, several -seeded. Oriental, thornless shrubs or trees. Lvs. pal- 

 mately trifoliate. Fls. mostly yellow. 



1 L. vulgare L. GOLDEN CHAIN. Arborescent ; l/ts. oblong-ovate, acute at 

 lose, acuminate; rac. simple, elongated, pendulous; leg. hirsute. A small, orna- 

 mental tree, 15f high, from Switzerland. Fls. numerous, large, in rac. If long. 

 f (Cytisus Laburnum L.) 



2 L. alpinum L. Arborescent; Ifts. oblong-ovate, rounded at base; rac. 

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

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

 liant, yellow fls., in long, drooping clusters. There aro varieties with ochroleu- 

 cous, white, and even purple fls. 



29. TRIFO'LIUM, Tourn. CLOVER. (Gr. -pifyvXXov, (three-leaved) ; 

 Lat. trifolium ; Fr. trefle ; Eng. trefoil.] Calyx tubular or campanu- 

 late, 5-toothed, persistent; petals more or less united at the base, with- 

 ering; vexillum reflexed ; alae oblong, shorter than the vexillum ; 

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

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

 longer than the calyx, 2 to 4-seeded ; seeds roundish. Herbs. Lvs. 

 palmately trifoliate ; Ifts. with straight, scarcely reticulated veins. Fls. 

 in dense heads or spikes. 



f Flowers yellow, in small, dense, roundish heads Nos. 1, 2 



Flowers cyanic, pedicellate, finally de-flexed, (a) 

 subsessiie, never "deflexed. (b) 



a Heads small, on stalks some ten times longer Nos. 3, 4 



. a Heads large, on stalks two or three times longer. . Nos. 5, 6 



b Calyx teeth plumose, longer than the whitish corolla No. 7 



b Calyx teeth shorter than the purple or roseate corolla.. .Nos. 810 



1 T. procumbens L. YELLOW CLOVER. St. procumbent cr ascending; Ifts. 

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

 ate, much shorter than the petioles ; hds. small, subglobous ; cor. yellow ; sty. 3 or 

 4 times shorter than the l-seeded leg. In dry soils, N. H. to Ya. Sts. many 

 from the same root, slender, moro or less pubescent, etriate, 3 to 10' long, often 

 Bnberect. Lfts. 4 to 8" long, % to equally as wide, lateral ones placed 1 to 2" be- 

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

 at length reflexed. Jn., Jl. Eur. 



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

 all subsessiie; slip, linear-lanceolate, cohering with and longer than the petiole; hds. 

 ovoid-elliptic; sty. about equaling the l-seeded kg. (1) Sandy fields. K. Eng. Sta. 

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

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

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

 Jl., Aug. Eur. 



^ 3 T. Carolinianum MX. Slender, diffuse; Ifts. cuneate-obovr.te, the middle 



one obcordate ; stip. ovate-acuminate, foliaceous ; hds. long-stalked ; cal. teeth 



^j thrice longer than its tube; leg. 4-seeded. <T) Fields, S. Car. to F!a. and Tex., 



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



. root. Fls. white or purplish. Ped. 4 to G' long. Mar. May. 



4 T. repens L. "WHITE CLOVER. SHAMROCK. St. creeping, diffuse ; Ifts. obcor- 

 date, denticulate ; stip. narrow, scarious ; hds. subumbellate, en very long, axil- 

 lary peduncles; leg. about 4-seeded; cal. teeth shorter than the tube. H In all 

 soils, mountainous, meadow or rocky, throughout N. Am. Sts. several from the 

 same root, extending 6 to 12', rooting at the joints. Ped. angular, much longer 

 than the Ivs. Fls. white. May Sept. Highly valued for pastunige. 



5 T. reflexum L. BUFFALO CLOVER. Pubescent; ascending or procumbent; 

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



. eemicordate ; hds. umbel-like ; cal. teeth nearly as long as the. cor. ; leg. about 

 4-seeded. '$) Prairies and meadows, "W. and S. States. St. 8 to 16' high. Lfts. 

 eubsessile, 7 to 8'' by 4 to 5" ; petioles 1 to 2' long. Hds. large and handsome- 

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



