^30 FLORA OF TEXAS. 



L. PUSiLLus. Leaflets '2, linear-lanceolate, acute; «//- 

 2mles sagittate ; peduncles elongated, 1-2-flowered ; teeth 

 of the calyx subulate-setaceous, nearly equal; legume long, 

 10-15-seeded.— A small vine; flowers purple; annual.— 

 Leavenworth. 



ZORNIA. 



Calyx 2- lipped, the upper emarginate, the lower 3-cleft ; 

 corolla inserted into the base of the calyx ; stamens mona- 

 delphous, alternately shorter; anthers alternately oblong 

 and globose; legume compressed with 2-5 roundish hispid 

 joints.— ^er^cs ; leaves palmately 2-4-foliolate ; stipules sa- 

 gittate ; flowers yellow, in axillary large-bracted racemes. 



Z. TETRAPHYLLA, Michx. Perennial ; smooth or downy ; 

 leaflets 4, lanceolate, or oblong-obovate ; racemes 3-9-flowered, 

 much- longer than the leaves; the fioiuers distant and al- 

 most concealed by the large ovate bracts ; legume hispid, 

 3-4-jointcd; stem 2° long, prostrate. 



STYLOSANTHES, Swartz. 



Flowers of two kinds : one kind perfect, but sterile; the 

 other destitute of calyx, corolla, and stamens, and fertile. 

 Calyx 2-bracted, 2-lipped, 5-cleft, the tube long and slen- 

 der ; corolla inserted on the throat of the calyx ; keel entire 

 at the apex ; stamens monadelphous, with the alternate 

 anthers linear and ovate ; style of the fertile flower hooked ; 

 legume veiny, 1-2 jointed, the lower joint empty. — Low 

 herhs ; leaves trifoliolate ; stipules united with the peti- 

 oles ; floiuers in a short and dense terminal spike. 



S. ELATiOR, Swartz. Stem 6-12' high ; pubescent, erect; 

 7er(/ife^5 lanceolate, rigid, strongly veined; stipules sheath- 

 ing; spfike few-flowered; Jrac/'.s bristly ; powers, yellow. 



