gg PULSE FAMILY. 



«. «. Pod indehiscent. vefy thick, 1 - 3-seeded. Calyx mth a long, ffirea(7-.*med 

 or stalk-like tube. Leaves aln-ujjtly pinnate: sUjmles united wUh the petiole 

 at base. 



20. ARACHIS. Aninml. Leaflets 4, straight-veined. Flowers smal! yellow in 



a^illarv heads or spikes. Calyx with one ..arrow lobe making a lower l.p, 

 the ..pper lip b.-oad and 4-toothed. Keel incurved a..d po.nted. S aniens 

 monadelphous, 5 anthers longer and fixed by near the.r base the alternate 

 "n™ sho, t and fixed bv their middle. Ovary at the bottom of the very long 

 and stalk-like tube of the calyx, containing 2 or 3 ovules : when the long style 

 and the calyx with the .-est of the flower falls away, the forming pod is pro- 

 traded on a rigid deflexed stalk which then appears, and .s pushed .nto the 

 soil where it ripens into the oblong, reticulated, thick, coriaceous f.-u.t, wh.ch 

 contains the 1-3 large and edible seeds; the embryo composed of a pair 

 of very thick and fleshy cotj-ledons and an extremely short nearly stra.ght 

 radicle. 

 *+ ^^ «. Pod cmtinmus, i. e. not in joints, at length opening, 2 - several-seeded. 



a. Leaves abruptly pinnate : plants not tinning. ( Flowers in ours yellow. ) 

 21 SESBANIA. Herbs, with many pairs of leaflets, and minute or early deciduous 

 ■stipules. Flowers in axilla.-y racemes, or so.netimes sohta.-y. Caly.x short, 

 6-toothed. Standard rounded, spreading: keel and style incurved. 1 od usu- 

 ally intercepted internally with cellular matter or membrane between the 



92 CAR \GANA. Shrubs, with mostly fascicled leaves of several pairs of leaflets, 

 and a little spinv tip in place of an end leaflet: stipules minute or spiny. 

 Flowers solitary "or 2-3 together on short peduncles. Calyx bell-shaped or 

 short-tubular, 5-toothed. Standard ..early erect with the sides turned back: 

 the blunt keel and the style nearly st.-aight. Pod linea.-, several-seeded. 



b. Leaves odd-pinnate : stems not twining. 

 1. Anthers tipped with a little gland or blunt point. 

 23. INDIGOFERA. Herbs, or sometimes shrubby, when pubescent the close- 

 pressed hairs are fixed bv the ir.iddle. Flowers" rose-color, purple, or white, 

 in axillary racemes or spikes, mostly small. Calyx 5-cleft. Standard round- 

 ish, ofte.i'persistent after the rest of the petals have fallen: keel with a p.-o- 

 jection or spur on each side. Pod oblong, linear, or of various shapes, com- 

 monly with membranous partitions between the seeds. 



2. Anthers blunt andpoiniless. 



21. TEPHROSIA. Herbs, with obliquely parallel-veined leaflets often silky be- 



neath, and white or purple flowers (2 or more in a cluster) in racemes; the 

 peduncles terminal or opposite the leaves. Calyx S-cIeft or 5-toothed. Stand- 

 a.'d rou..ded, silk}' outside. Style incurved, rigid: stigma w.th a tuft of 

 hairs. Pod linear, flat, several-seeded. 



25. ROBINl A. Trees or shrubs, with netted-veined leaflets furnished with stipels, 



and often with sharp spines or prickles for stipules. Flowers large and 

 showy, white or rose-color, in axillary racemes. Base of the leafstalk hollow 

 and covering the axillary bud of the next year. Calyx 5-toothed, the two 

 upper teeth partly united. Standard large, turned back: keel incurved, 

 blunt. Ova.-y stalked in the calyx. Pod broadly linear, flat, several-seeded, 

 margined on the seed-bearing edge, the valves thin. 



26. COLUTEA. Shrubs, not prickly, and no stipels to the leaflets: the flowers 



rather large, yellow or reddish, in short axillary racemes. Calyx 5-toothed. 

 Standard rounded, spreading: keel strongly incurved, blunt, on long united 

 claws. Style incurved, bearded down one side. Pod raised out of the calyx 

 on a stalk of its own, thin and bladdery -inflated, flattish on the seed-bearing 

 side, several-seeded. 



27. ASTRAGALUS. He.-bs, without stipels, and with white, purple, or yellowish 



rather small flowers in spikes, heads, or racemes : peduncles axillary. Co- 

 I'olla narrow: standard erect, mostly oblong. Style and stigma smooth and 

 beardless. Pod commonly turgid or inflated and within more or less divided 

 lengthwise by intrusion of the back or a false partition from it. 



(SwAiNSONA, SuTHERLANDiA, and Ci.iAxTHUs, plants from Australia, 

 New Zealand, and South Africa, with showy flowers and bladdery-inflated 

 pods (like Colutea), are sometimes cult, in conservatories, but are not com- 

 mon enough to find a place here.) 



