LEGUMINOS^E. 57 



Pods silky- pubescent, cartilaginous, about half an inch long, 

 imperfectly 2-celled. N. W. 



3. 0. montie'ola, Gray, is reported as common in the 

 prairie region. It is smaller than No. 2, and has denser 

 spikes, usually smaller flowers, and less downy leaves. 



4. 0. Splendens, Dougl. Silvery-silky-villous, 6-12 inches 

 high. Flowers erect-spreading. Pod erect, hardly surpas- 

 sing the villous calyx. N. W. 



9. GLYCYRRHI'ZA, Tourn. LiQUOBiCE/ 



G. lepido'ta, Nutt. (WILD LIQUORICE.) Two to three 

 feet high. Leaflets 15-19, sprinkled with little scales when 

 young. Fort Erie and N. W. 



10. TEPHRO'SIA, Pers. HOARY PEA. 



T. Virginia'na, Pers. (GOAT'S EUE. CATGUT.) Stem 1-2 

 feet high, simple, leafy to the top. Leaflets 17-29, linear- 

 oblong. Roots long and slender and tough. Sandy soil, 

 Lake Erie coast. 



11. PSORA'LEA, L. 



1. P. argophyl'la, Pursh. Silvery-silky all over. Leaves 

 of 3-5 leaflets, the latter elliptical-lanceolate. Spikes of 

 flowers interrupted. Roots not tuberous. N. W. prairies. 



2. P. laneeola'ta, Pursh. Smooth or nearly so. Leaf- 

 lets 3. Flowers small, in short spikes. Roots not tuberous. 

 N. W. 



3. P. eSCUlen'ta, Pursh. Hough-hairy all over. Leaf- 

 lets 5, obovate or lance-oblong. Spikes dense, Soots tuber- 

 ous. N. W. 



18. AMOR PHA, L. FALSE INDIGO. 



1. A. canes' eens, Nutt. (LEAD-PLANT.) White-downy 

 all over, 1-3 feet high. Leaflets less than half an inch 

 long, crowded. Spikes generally clustered. Pods 1-seeded, 

 N.W. 



2. A. mierophyl'la, Pursh, differs from the last in 

 being lower and nearly smooth. Spikes usually solitary, 

 N.W. 



