DIADELPHIA DECANDRIA. 219 



^ 



ternas oblongae, alter- j nately oblong and glo- 

 nae globosae. Lomen- biilar. Pod jointed, 

 tim articLilatum, his- hispid, 

 pidum. 



1. T 



ETRAPHYLLA. 



Z. foliis digitato- 

 quadrifoliatis ; folio- 



lis lanceolatis^glabrisj 

 spicis axillaVibus^ pe- 



Leaves digitate^ 

 leaflets 4^ lanceolate, 

 glabrous; spikes axil- 

 lary, on peduncles; 

 dunculatis ; floribus | flowers alternate, pro- 

 alternis bibracteatis, I tected by two nearly 

 bracteis suborbiculatis. | round bracteas. 



Mich, fl, Amer. 2. p. 76. Pursh- 2. p. 484, Anon, bracteat. Walt. 

 p. 181. 



Root somewhat cylindrically tuberous^perennial. Stem herbaceous^pros- 

 trate, branching in every direction, about 2 feet long, glabrous. Leaves 

 digitate, generally by fours, leaflets lanceolate, very acute, the lower one 



sometimes obovate, all entire, glabrous and dotted; common petiole 1 2 



mches long, partial petioles scarcely one line long. Stipules lanceolate. 

 Very acute, deciduous. Floicers in long (4 — 8 inches) simple, axillary 

 spikes, somewhat distichous on the spike. Bracteas 2 at the base of each 

 flower, covering tlie bud and nearly enclosing the expanded flower, Ian- 

 ceolate, ciliate, acuminate, attached to the stem near its summit. Calyx. 

 4 cleft, the upper segment broad, emarginate,all fringed. Corolla yel- 

 lowjthe vexillum and keel longer than the wings. *SYa»zensmonadelphous, 

 the stameniferous tube divided to the middle, the segments alternately 

 longer. Anthers 5 round, 5 oblong. Lomentum 2—4 jointed^ joints 

 nearly round, rugose and hispid. In its aitificial character this plant is 

 very nearly allied to the genus Hedysarum,where it was formerly placed^ 

 In habit it is very distinct. 



Grows in the driest sandy lands* 



Flowers June to August. 



^SCHYNOMENE. Gen. Pl. 1202. 



( 



Calyx bilabiatus. I Calyx bilabiate. 

 Lomentum compres- P^^ (Lomentum) coin- 

 sum, siitura altera rec- pressed with one su- 

 ta, altera lobata,arti- | lure straight, the other 



culis tjuncatis, 1-sper- | lobed, the joints trim- 



