218 FLORA OF TEXAS. 



T. PROCUMBENS, L. Pubescent; stems slender, erect or 

 procumbent; leaflets small, thin, obovate or obcordate, 

 toothed, the middle one stalked ; heads small oyfitQ -, floiu- 

 ers yellow ; legume 1-seeded. Annual ; stems 6-12' long. 



T. Carolinianum, Michx. Pubescent ; stems tufted, 

 prostrate; leaflets small, obcordate, slightly toothed; heads 

 roundish, long-peduncled ; flowers white, tinged with pur- 

 ple ; standard acute; ?e^?^?»e 4-seeded. Perennial; stem, 

 6-10' long ; in shady places erect. 



PSORALEA, L. 



Calyx campanulate, 5-cleft, with the lobes acute ; star 

 mens diadelphous or partly monadelphous ; half of the an- 

 thers often imperfect; legume often wrinkled, 1-seeded, 

 indehiscent, included in the calyx. — Perennial, usually glan- 

 dular he?'bs J stijncles cohering with the petioles ; flowers 

 axillary or terminal, purplish or white, racemose or spiked. 



* Leaves \-Z-foliolate. 



P. Melilotoides, Michx, Glandular and sparingly 



pubescent ; leaves trifoliolate ; leaflets oblong-lanceolate or 

 elliptical; stijniles subulate; spikes oblong, on peduncles 

 3-5 times as long as the leaves ; bracts ovate, acuminate, 

 veiny ; corolla violet ; legume rugose ; stem l°-2° high ; 

 leaflets 1-2' long. 



♦* Leaves palmatdy 5-1 -foliolate. 



P. OBTUSiLOBA. Canescent; branches spreading; leaves S- 

 rarely 5-foliolate ; leaflets oblong-obovate, obtuse or slightly 

 emarginate, finely dotted ; stijmles almost none ; racemes 

 3 times as long as the leaves, oblong, loose, 10-15-flowered ; 

 bracts minute, broadly ovate, abruptly acuminate, spread- 

 ing; calyx I the length of the petals ; legume nearly gla- 

 brous, not wrinkled. — Drummo7id, 



