94 Li;<;r.MiNos,K. (ITLSK FAMILY.) 



toothed ; peduncles 3 - 5-floicered ; flowers yellow ; pod* couijxtclftj spiral, of 2 or 3 

 turns, compressed, furroind on the thick eilye, and fringed with a double row of 

 curved prickles. (T; Introduced with wool into waste grounds in some places. 

 (Adv. from Eu.) 



4. M. I>ENTICUL\TA, Wilhl. Nearly glabrous; pods loosely spiral t deeply 

 reticnlati-d, and with a thin keeled edge: otherwise like the last. Sparingly in- 

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



7. PSORAL.EA, L. PSORALEA. 



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

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

 longer than the calyx, thick, often wrinkled, indehiseent, 1 -seeded. Perennial 

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

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

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

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

 the glands or dots.) 



# Leaves pinnately 3-foliolate. 



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

 (3 -5 high); leaflets lanceolate-ovate, taper-pointed (.'3' long); stipules and bracts 

 au-l->i/t(ipcd ; 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. Stipuliltsi, Ton-. & Gray. Nearly smooth and glandless ; struts dif- 

 fuse; leaflets orate-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. mclilotoldes, Miehx. Somewhat pubescent, more or less glan- 

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

 sjii/ds Monn, long-peduncled ; ttipule* aid-shaped; bracts ovate or lanceolate, 

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



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



* * Leaves palmately 3 - 5-foliolate. 



4. P. floribltilda, Nutt. Slender, erect, much branched and bushy 

 (2 C -4 high), minnttly hoary.-pubesc&tt when young; leaflets varying from linear 

 to obovate-oblong (^'-l' long), glandular-dotted; racain^ panirU-d ; lobes of 

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

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



5. P. argopliylia, Pursh. Silvery silky-u-hftr all over, erect, divergently 

 branched (l-3 high); leaflets elliptical-lanceolate; spib* int<mipt< d ; lohea 

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

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



P. KSCLI.KNTA, Pursh., of the same region as the last, the INDIAN Tt;i<- 

 MI-, POMME BLANCHE, or POMME DE PUAIIIIE, used as food by the aborigi- 

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



