Obder 46.— LEGUMINOS-ffi. 303 



long, ooriaceouB. Fls. large, duR yellow. Apr., Jn. — Each plant forms a globu- 

 lar mass which when dry, breaks away and roUs about with the wind frightening 

 horses ; hence called horse-devils. 

 j3. Taller, branches less flexuous ; Ifts. obovate, very obtuse ; fls. solitary and 

 somewhat racemed at the ends of the branches. — Pla., La. 



10 B. tinctdriaR. Br. Glabrous, branching; Ivs. subsessile; Ifts. small, roimdiah- 

 otovate, acute at base, very obtuse at apex ; stip. setaceous, caducous ; roc. loose, 

 terminal; leg. subglobous. — A plant with bluish-green foliage, frequent in dry 

 soils, Can. and TJ. S. St. very bushy, about 2f high. Lfts. about 1" by 4 to 6", 

 emarginate; petiole 1 to 2" long. Fig. 6 to 12 or more in each raceme. Petals 

 6" long, yellow. Leg. about as large as a pea, on a long stipe, mostly 1-seeded. 

 Jl.— Sept. 



11 B. Lecoutii Torr. & Gr. Somewhat pubescent; Ivs. short- petioled; lfts. 

 obovate-oblong ; pedicels longer than the fls., with two bractlets ; bracts per- 

 sistent; leg. short-stiped ; branches, stipules and racemes as iu No. 10. — Pla. and 

 S. Ga. Does not turn black in drying. May. 



12 B. megacarpa Chapman. Glabrous, slender; Ivs. petioled; lfts. oval; rac. 

 short and short-stalked ; stip. and bracts minute, caducous ; fls. nodding, on pedicels 

 shorter than the corolla; leg. large, globular, and much inflated. — Near Quincy, 

 Fla. Ms. and Ivs. nearly as large as in No. 9. Mature pods 1 J' diam. Does not 

 blacken in drying. May. 



13 B. mollis Mx. Minutely-hoary-pubesoent, sparingly branched ; petioles half 

 as long as the ouneiform-oblanceolate lfts. ; stip. lanceolate, as long as the petioles ; 

 pedicels as long as the fls., in terminal racemes. — ^In mountain woods, N. Car. 

 and Tenn. (Lookout Mt, Chattanooga.) A fine, bright-flowered species, IJf 

 high. Dries bright. May. 



12. FA^BA, Moenoh. Horse Bean. Coffee Bean. Flowers as in 

 Vicia, but the seeds oblong, with a long scar (hilum) on the narrower end, 

 and Ifeathei-y, tumid legumes. — Lvs. equally pinnate, with the tendril 

 obsolete (in the following species). Peduncle shorter tlian the flowers. 



F. vulgaris Mcench. St. rigidly erect, with very short axillary racemes; lfts. 

 2 to 4, oval, entire, mucronate or acute; (tendrils obsolete by cultivation;) stip. 

 semisagittate, dentate at base. — Native of Egypt. Frequently found in gardens, 

 but not eo much admired for the table as formerly. Fls. white, with a large black 

 spot on each of the ales. Leg. torulous. Sds. very large, with a large hUum at 

 one end. (Vicia Eaba L.) 



i3. CI'CER arieti^num, the Chiok Pea, rarely cultivated may be 

 readily known by its serrated leaflets, a character quite strange in this 

 Order. 



14. PI 'SUM, L. Pea. (Celtic pis, Lat. pisum, Eng. pea, Fr. pds.) 

 Calyx segments leafy, the upper two shortest ; vexillum large, reflexed ; 

 stamens 10, diadelphous (9 and 1) ; style grooved on the back, villous 

 and stigmatic on the inner side ; legume oblong, tumid, many-seeded ; 

 seeds globous, witb an orbicular hilum. — Herbaceous, climbing. Lvs. 

 abruptly pinnate, ending with branching tendrils. 



P. sativum L. Lfts. ovate, entire, usually 4 ; stip. ovate, semi-cordate at base, 

 crenate; ped. several-flowered. — ® One of the most valuable of leguminous plants, 

 smooth and glaucous. St. 2 to 5f long, nearly simple, climbing by tendrils. Lfts. 

 2 to 3' long, f as wide, obtuse, mucronate, stip. rather larger than the leaflets. 

 Fls. two or more, on axillary peduncles, large, white. This plant has been cul- 

 tivated from time immemorial, so that its native country is unknown. There 

 are many varieties. 



15. LATH'YRUS, L. Calyx carapanulate,thetwo upper sepals shortest; 

 stamens 10, diadelphous (9 and 1); style flat, dilated above, ascending, 



