LEGUMINOS^E. 77 



1. BAPTISIA. Vent, 



Calyx half 4 5-cleft, bilabiate. Petals 5, nearly equal, 

 Standard with the sides reflexed. Stamens deciduous. Le- 

 gume ventricose, pedicelled, many-seeded. 



Decandria. Monogynia, 



B. tinctoria Brown ; very smooth, much branched ; leaves ternate, 

 petioled, upper ones subsessile ; leafets round-obovate ; stipules seta- 

 ceous ; racemes terminal ; legume on a long stipe. Sophora tinctoria 

 Linn. Podalyria tinctoria Willd. 



HAB. Sandy woods. Can, to Car. July, Aug. U.Stem 23 

 feet high, very bushy, Flowers yellow. Whole plant turns 

 bluish-black in drying. Wild Indigo, 



2. CRQTALARIA, Linn, 



Calyx 5-lobed, subbilabiate ; upper lip 2, lower one 3-cleft. 

 Standard large, cordate. Keel falcate, acuminate. Fila- 

 ments all united, with the sheath often divided above. Le- 

 gume turgid, inflated, with ventricose valves, often many- 

 seeded, pedicelled. Diadelphia. Decandria. 



1. C. sa gittalis Linn. : hairy, erect, branched ; leaves simple, oblong- 

 lanceolate ; stipules lanceolate, acuminate, decurrent ; racemes oppo- 

 site the leaves, about 3-flowered ; corol smaller than the calyx.- C. 

 sagittalis, var. ollonga Mich. 



HAB. Pine barrens. Penn. to Car, July, Aug. $j.-*Stem 12 

 inches high. Flowers yellow. Legume inflated. Varies much 

 in its pubescence. Rattle-box. 



2. C. parviflora Wittd. : hirsute, erect, branched ; leaves simple, 

 linear-lanceolate, hirsute ; upper stipules decurrent, with two very 

 short teeth ; racemes opposite the leaves ; corol smaller than the ca- 

 lyx. C. sagittalis, yar. linearis Mich. 



HAB. Sandy fields. N. Y. to Car. June, July. . Leaves 

 2 3 inches long. Flowers yellow. 



3. GENISTA. Lam. 



Calyx bilabiate, upper lip bipartite ; lower one 3-toothed, 

 or 5-lobed ; 3 lower lobes united almost to the summit. 

 Standard oblong-oval. Keel oblong, straight. Stamens mo- 

 nadelphous. Legume flat-compressed or rarely somewhat 

 turgid, many-seeded, rarely few-seeded. 



Diadelphia. Decandria. 



G. tinctoria Linn, : root creeping ; stem suberect, suffruticose ; 

 branches terete, striate, erect ; leaves lanceolate, smooth ; flowers in 

 spiked-racemes and with the legumes smooth. 



