PAPILIONACEAE 119 



Var. longifolia (DC.) T. & G. Leaflets linear-oblong, l'-3$' long. 

 Rocky woods near Dodson. Not common. 



6. L. striata (Thunb.) H. & A. Diffusely branching, 3 / -15 / long, 

 subpubescent : leaves nearly sessile, the leaflets oblong : stipules large : 

 flowers 1-3 together, nearly sessile. Found as a waif near Dodson and 

 Sheffield. August-October. 



16. VICIA L. VETCH. 



Vines with pinnate tendril-bearing leaves and purplish flowers. Sta- 

 mens diadelphous. Styles with a tuft of hairs at the summit. Pods flat, 

 dehiscent, 2-valved, several-seeded. 



Flowers in racemes. 



Racemes 3-9-flowered. 1. V. Americana. 



Racemes 1-2-flowered. 2. V. micrantha. 



Flowers nearly sessile. 3. V. sativa. 



1. V. Americana Muhl. WILD VETCH. Glabrous perennial, l-3 

 long : leaflets 10-16, elliptic-ovate : flowers 8 // -9 // long. Locally abun- 

 dant on clayey banks near Pixley's, Adams and Levasy. May-August. 



2. V. micrantha Nutt. Glabrous perennial, l-2 long : leaflets 4-10, 

 linear-oblong: flowers 2 // -3 // long. Collected as a waif at Courtney. May. 



3. V. sativa L. COMMON VETCH. Annual, l-2 high, nearly gla- 

 brous : leaflets 8-14, obovate to linear-oblong, retuse and mucronate at 

 apex, 2 // -4 // wide : flowers 6 // -9 // long. Locally adventized along rail- 

 roads at Sheffield. May-July. 



17. FALCATA Gmel. HOG PEANUT. 



Vines with 3-foliolate, stipellate leaves and purplish flowers in axillary 

 racemes and also apetalous flowers from basal branches. Upper pods 

 linear-oblong, several-seeded. Lower pods obovate, 1-seeded. 



Plant glabrate or sparingly pubescent. 1. F. comosa. 



Plant villous-pubescent. 2. F. Pitcheri. 



1. P. comosa (L. ) Kuntze. l-3 long: leaflets rhombic-ovate, \'-& 

 long, thin : bracts small, nearly glabrous : ovary glabrous with a hairy 

 margin. Rather common in dry woods. August-September. 



2. F. Pitcher! (T. & G.) Kuntze. 5-20 long : leaflets as in the last 

 but thickish : bracts large, pubescent : ovary hairy. Common in moist 

 woods, especially along the Missouri River. August-September. 



18. APIOS Moench. 



Vines with pinnate, stipellate leaves and chocolate-colored flowers in 

 dense racemes. Calyx somewhat 2-lipped. Keel incurved. Pods linear, 

 many-seeded, rarely formed. 



1. A. tuberosa Moench. GROUND NUT. 5-10 long from tubers : 

 leaflets 5-7, ovate-lanceolate : flowers numerous, 4 // long. In low 

 grounds througout, but not common. July-August. 



