PAPILIONACEAE 117 



loments straight on the back, deeply indented below into 2-3 joints. Dry 

 woods near Courtney. Local. July-September. 



2. M. graiidiflora (Walt.) Kuntze. Leaves crowded at summit of 

 stem, from which arises the naked panicle : leaflets round-ovate, 2'-6' 

 long : loments 1-3-jointed. Abundant in dry woods throughout. June- 

 August. 



3. M. canescens (L.) Kuntze. 2-5 high, villous-pubescent : leaf- 

 lets blunt, whitish-pubescent beneath: loments 4-6-jointed, the joints 

 unequally rhomboid. Frequent in dry sandy grounds, especially along 

 the Missouri River. July-September. 



4. M. bracteosa (Michx.) Kuutze. 3-6 high, very smooth below : 

 leaflets 2 / -6 / long, ovate-lanceolate, acuminate : loments 3-7-jointed, 

 the joints rhomboid-oblong. Occasional in thickets throughout, but not 

 common. July- August. 



5. M. longifolia (T. & G.) Vail. 2-5 high, minutely pubescent : 

 leaflets 2 X -4 X long, ovate-lanceolate, acuminate, pubescent : loments 4-6- 

 jointed, the joints triangular. Rather common in rocky woods, especially 

 in the northwestern part. July-September. 



6. M. Canadensis (L.) Kuntze. 2-6 high: leaflets 1^-3' long, 

 oblong-lanceolate, obtuse, appressed-pubescent beneath : flowers large : 

 loments 3-5-jointed, the joints obliquely oval. Occasional in rich woods 

 and prairies throughout the western part. July-September. 



7. M. Illinoensis (A. Gray) Kuntze. 3-5 high, rough-pubescent : 

 leaflets l^ / -3 / long, ovate-lanceolate, obtuse, coriaceous, scabrous above 

 and strongly reticulated beneath : loments 6 // -12 // long, 3-6-jointed, the 

 joints oval. Frequent in dry barrens and on prairies throughout the 

 southern part. June-July. 



8. M. sessilifolia (Torr.) Kuntze. 2-4 high, pubescent: leaves 

 nearly sessile, the leaflets linear- oblong, obtuse, pubescent and usually 

 strongly reticulated beneath : loment 1-3-jointed, the joints obliquely 

 obovate. Frequent in barrens, especially in the southern part. July- 

 August. 



9. M. paniculata (L. ) Kuntze. 2-4 high, nearly glabrous : leaflets 

 oblong-lanceolate, smooth, blunt: loment 3-6-jointed, the joints obliquely 

 triangular. Abundant, especially in low woods. July-September. 



Var. pubens (T. & G.) Vail. Leaflets appressed-pubescent beneath : 

 loments strongly constricted above and below. Sandy woods along Blue 

 near Martin City. 



10. M. Dillenii (Darl.) Kuntze. 2-3 high, pubescent: leaflets 

 oblong-ovate, l / -2 / long, pubescent beneath, blunt : loment 2-4-jointed, 

 the joints triangular. Common in dry soil. July-September. 



11. M. rigida (Ell.) Kuntze. l-3 high, rough-pubescent: leaflets 

 oblong-ovate, scabrous above, pubescent beneath, blunt, 10 // -20 // long : 

 loment 1-3-jointed, the joints obliquely oval. Dry hills along the Little 

 Blue. Rare. August-September. 



