94 LEGUMINOS^E. (PULSE FAMILY.) 



toothed; pcduttcks 3 - 5-Jlowered ; flowers yellow; pods compactly sji/al, of 2 or 3 

 uirns, compressed, farrowed on the thick edye, and fringed with a double row of 

 curved prickles. (J) Introduced with wool into waste grounds in some places. 

 (Auv. from Eu.) 



4. M. DENTicuiAxA, Willd. Nearly glabrous; pods loosely spiral, deeply 

 reticulated, and with a t/tin keeled c-dye: otherwise like the last. Sparingly in- 

 troduced into New England, e. (Adv. from Eu.) 



7. PSORAL.EA, L. PSORALEA. 



Calyx 5-cleft, persistent, the lower lobe longest. Stamens diadelphous or 

 sometimes monadelphous : the 5 alternate anthers often imperfect. Pod seldom 

 Conger than the calyx, thick, often wrinkled, indehiscent, 1 -seeded. Perennial 

 herbs, usually sprinkled all over or roughened (especially the calyx, pods, &c.) 

 with glandular dots or points. Leaves mostly 3 - 5-foliolate. Stipules cohering 

 with the petiole. Flowers spiked or racemcd, white or mostly blue-purplish. 

 Root sometimes tuberous and farinaceous. (Name from ^copaXeos, scurfy, from 

 the glands or dots.) 



# Leaves pinnately 3-foliolate. 



1. P. OnobrydliS, Nutt. Nearly smooth and free from glands, erect 

 (3 -5 high); leaflets lana.vlate~ovate, t&per+pointed (3' long); stipules and bracts 

 awl-shaped ; racemes axillary, elongated ; peduncle shorter than the leaves ; 

 pods roughened and wrinkled. River-banks, Ohio to 111. and southward. July. 



Flowers very small. 



2. P. Stipulata, Torr. & Gray. Nearly smooth and glandless ; stems dif- 

 fuse ; leaflets ovate-elliptical, reticulated ; stipules ovate ; flowers in heads on axil- 

 lary rather short peduncles; bracts broadly ovate, sharp-pointed. Rocks, Falls 

 of the Ohio, Kentucky. June. 



3. P. mclilotoides, Michx. Somewhat pubescent, more or less glan- 

 dular; stems erect (l-2high), slender; leaflets lanceolate or narrowly oblong; 

 spilces oblong, long-peduncled ; stipules a ui-sh ay *d ; bracts ovate or lanceolate, 

 taper-pointed ; pods strongly wrinkled transversely. (Also P. eglandulosa, EU.) 



Dry soil, Ohio to Illinois, Virginia, and southward. June. 



* * Leaves pahnoitdy 3 - 5-foliolate. 



4. P. Ho rift is ml 21, Nutt. Slender, erect, much branched and bushy 

 (S c -4 high), minutdy hoary-pnbcscent when young ; leaflets varying from linear 

 to obovate-oblong ('-!' long), glandular-dotted; nu+mts pa>uc/l : lol 



the calyx and bracts ovate, acute; pod glandular. Prairies of Illinois and 

 southwestwanl. June - Sept. Flowers 2" or 3" long. 



5. P. argopliylla, Pursh. Silvery si/ky-ichitc all over, erect, divergently 

 branched (l-3 high); leaflets elliptical-lanceolate; sjn'/ccs iiitirrn/itid ; lobes 

 of the calyx and brads lanceolate. High plains, Falls of St. Anthony, Wis- 

 consin, and westward. June. Flowers 4"- 5'' long. 



P. ESCULNTA, Pursh., of the same region as the last, the INDIAN TUR- 

 NIP, POM ME BLANCHE, or POMMK DE PKAIKIE, used as food by the aborigi 

 oes, may possibly occur on the Wisconsin side of the Mississippi. See add. 



