PAPILIONACEAE 119 



Var. longifolla (DC.) T. & G. Leaflets linear-oblong, lysh^ 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 

 Sheflfield. 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, l'-3^ 

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

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



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

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

 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. 



