116 PAPILIONACEAE 



1. A. Carolinianua L. 2°-4° high, erect : leaflets 15-27, oblong : flowers 

 numerous, in dense spikes : pods sessile, oblong, terete, glabrous, S'^-S" 

 long, 2-oelled, dehiscent. — Occasional in open grounds throughout. July- 

 August. 



2. A. crassicarpus Nutt. Ground Plum. Stems decumbent, l°-2° 

 long, appressed-pubescent : leaflets 15-25, narrowly oblong : flowers in 

 short racemes : pods fleshy, sessile, glabrous, 8'''-12'''' long, 2-celled, inde- 

 hisoent. — Frequent in barrens throughout the southern part. April-May. 



3. A. distortus T. & G. Stems short, ascending, glabrate : leaflets 11- 

 25, obovate : flowers in loose spikes : pods sessile, linear-oblong, strongly 

 curved, glabrous, 6''''-12'''' long, 1-oelled, grooved beneath. — Frequent 

 with the last. April-May. 



13. GLYCYRRHIZA L. 



Herbs with odd pinnate leaves and spicate racemose flowers. Stamens 

 diadelphous. Alternate anthers smaller. Pods sessile, indehiscent, 

 prickly. 



1. G. lepidota Pursh. Wild Liquorice. 1°-3° high : herbage 

 dotted : leaflets 11-19, oblong-lanceolate : flowers greenish- white. Occa- 

 sionally adventized along railroads from Kansas City to Courtney. May- 

 June. 



14. MEIBOMIA Heist. Stick Tight. 



Herbs with stipellate, 3-foliolate leaves and rather small flowers in 

 racemes. Calyx somewhat 2-lipped. Stamens diadelphous. Loments 

 sessile or stalked, transversely jointed, the joints indehiscent and rough 

 pubescent. 



Loments borne on stipes about the length of the pedicel. 



Panicle arising from the base of the plant. 1. M. nudifhra. 



Panicle terminal. 2. M. grandiflora. 



Stipes of loments not exceeding calyx. 



Bracts large and conspicuous before flowering. 

 Stipules large and conspicuous. 



Leaves not coriaceous and reticulated beneath. 

 Leaflets obtuse, muoronate. 3. M. canescens. 



Leaflets long-acuminate. 

 Leaflets pubescent. 5. M. longifolia. 



Leaflets glabrous. 4. M. hracteosa. 



Leaves coriaceous and reticulated beneath. 7. Jf. lUinoensis. 

 Stipules small and inconspicuous. 

 Leaflets oblong-lanceolate. 6. M. Canadensis. 



Leaflets linear. 8. if. sessilifolia. 



Bracts small and inconspicuous. 

 Joints of loment triangular. 



Plants glabrous. 9. M. paniculata. 



Plants pubescent. 10. Jf. DUlenii. 



Joints of loment oval. 

 Plants pubescent. 11. M. rigida. 



Plants glabrous. 12. M. Marylandica. 



1. M. nudiflora (L.) Kuntze. Leaves crowded at summit of sterile 

 stems : leaflets ovate-oibicular, I'-S' long : flowering stem leafless : 



