PULSE FAMILY, Vl^ 



20. SESBANIA. (Aral)ic: Seshan, a little altered.) Flowens late 

 summer. 



S. macroc^rpa, Miihl. Tall, smooth; leaflets linear-oblong; flowers 

 few, on a peduncle shorter than the leaves, corolla yellow with some red- 

 dish or purple ; pods linear, narrow, hanging, 8'-12' long ; seeds many. ® 

 Swamps S. 



S. vesicaria, Ell. Keseinbles the preceding in foliage and small, yellow 

 flowers, but has a broadly oblong turgid pod, only 1' or 2' long, pointed, 

 raised above the calyx on a slender stalk, 2-.seeded, the seeds remaining 

 inclosed in the bladdery white lining of tlie pod when the outer valves 

 have fallen. ® Low grounds S. 



S. grandi'f/dra, Poir. A shrub or tree-like plant of India, run wild 

 in Florida, occasionally cult, for oi-nament IS. ; flowers 3'-4' long, white or 

 red ; pods slender, hanging, 1° or so long. 



21. INDIGOFERA, INDIGO PLANT. (Name means producer of 

 indigo.) 



I. iinclbria, Linn. This and the next furnish much of the indigo of 

 commerce, were cult, for that purpose S., and have run wild in waste 

 places ; woody at base, with 7-15 oval leaflets, racemes shorter than 

 the leaves, the deflexed knobby terete pods curved and several-seeded. 



/. Anil, Linn. Differs mainly in its flattish and even pods thickened at 

 both edges. 



22. ONOBRYCHIS, SAINFOIN. (Greek : asses' ./oofL) 



0. satha, Lam. ConmoN S. Sparingly cult, from Europe as a fodder 

 plant ; herb l°-2° high ; leaflets numerous, oblong, small ; stipules brown, 

 thin, jjointed ; spikes of light pink flowers on long axillary peduncles, in 

 summer ; pod semicircular bordered with short prickles or teeth. H 



23. ASTRAGALUS, MILK VETCH. (Greek: application uncer- 

 tain ) Very many native species west of the Mississippi. 2/ 



* Pod turgid, complctebj or partiaUy 2-ceUed hg the intrusion of the dorsal 

 suture. 



H- Pod plum-shaped, becoming thick and fleshg, indehiscent. 



A. caryocarpus, Ker. Ground Plums. Minutely appa-essed-pubes- 

 cent ; leaflets narrow, oblong ; short racemes or spikes of violet-purple 

 flowers in spring ; fruit of the size and shape of a small plum, but more 

 or less pointed, fle.shy, becoming dry and C(n-ky, very thick-walled. Com- 

 mon alonii; the Upper Mississippi and W. and S. on the plains. 



A. Mexicanus, DC. Smooth or with looser hairs ; leaflets roundi.sh or 

 obliin- ; corolla cream-color, bluish only at tip ; fruit globular, pointless. 

 Prairies, 111. to Kan. and S. 



H- 1- Pad dry, coriaceous, cartilaginons, or membranous, dehiscent. 



•«■ Pod complctelg 2-ceUed. 



A. molllssimus, Torr. Stout, decumbent, densely silky, villous 

 throughout and tomento.se ; flowers violet ; pod sulcate at both sutures. 

 Neb. to Kan. and 'i'ex. A "loco" weed. 



A. Canadensis. Linn. Tall, erect, l°-4" high, slightly pubescent; 

 flowers greenish cream-colored, in summer ; pods oblong, terete, scarcely 

 sulcate. Ii'iver banks, common. 



A. glaber, Miciix. Pine barrens, N. C. to Fla. ; tall, nearly smooth ; 

 leaflets lo-'J."), oblong-linear, pubescent beneath ; spikes loose, longer than 

 the leaves, with white flowers ; pod oblong and curved,' flattened edgewise. 



gray's F. F. & G. BOX. — U 



