326 



PAPILIOXACEAE. 



Flowers sessile or very nearly so, few, axillary. 

 Flowers i or 2 in the axils; annuals. 

 Leaflets oblong, oval or obovate. 



Leaflets, except those of lower leaves, linear, or linear-oblong. 

 Flowers 2-6 in a short nearly sessile raceme; perennial. 



[Vol.. II. 



9. I '. satiz-a. 



10. V. angustifolia. 



11. I'. Sepium. 



i. Vicia Cracca L. Tufted or Cow 

 Vetch. Blue Vetch. (Fig. 2204.) 



1'ic! a Cracca L,. Sp. PL 735. 1753. 



Perennial, finely pubescent or sometimes gla- 

 brate, stems tufted, slender, wtak, climbing or trail- 

 ing, 2-4 long. Stipules linear, acute, entire, i // -4 // 

 long; leaves nearly sessile; leaflets 18-24, thin, 

 linear or linear-oblong, obtuse or acutish, mucron- 

 ate, 8 // -io // long, i^ // -2 // wide;peduncles axillary, 

 shorter than or equalling the leaves; spike-like 

 racemes dense, i'-4' long; flowers bluish-purple, 

 5 // -6 // long, reflexed; pod short-stalked, glabrous, 

 9"-i2" long, about 3" wide, 5-S-seeded. 



In dry soil, Newfoundland to British Columbia, south 

 t<- Nt \v York, New Jersey. Kentucky and Iowa. Also 

 in Knrope and Asia. Tinesrrass. Cat-peas. Juiu Aug. 



2. Vicia Americana Mtihl. American 

 Vetch. Pea Vine. (Fig. 2205.) 



I'ii-ia Americana Muhl.; Willd. Sp. I'l. 3: 1096. 1803. 



Perennial, glabrous or with some appressed pu- 

 bescence, trailing or climbing, 2-3 long. Leaves 

 nearly sessile; stipules broad, foliaceous, triangular- 

 ovate, sharply toothed, 2"-$" long; leaflets 8-14, 

 elliptic, ovate or oblong, obtuse or sometimes emar- 

 ginate and mucromilate at the apex, rounded at the 

 base, S'^iS" long, 3"-7" wide; peduncles usually 

 shorter than the leaves; racemes loose, 3-9-flowered; 

 flowers bluish-purple, S // -o/ / long, spreading; pod 

 short stalked, glabrous, x'-i^ 7 long, 4~7-seeded. 



In n<>ist ground. New Brunswick to Miinitot>a ami 

 British Columbia, south to Virginia, Kentucky and 

 Nevada. Leaflets of lower leaves sometimes narrow. 

 Ascends to vv" ft. in Virginia. May-Aug. 

 Vicia Americana truncata t Nutt. i Brewer, in Iln-w vS: 



Wat*. Hot. Cal. i: 158. 1876. 

 I'icia truncata Nutt.; T. & C.. Fl. N. A. i: 270. 



Leaflets thick, oblong or obovate, truncate and dentate at the ap<-\. 

 north to Vancouver. 



3. Vicia linearis (Nutt.) Greene. Narrow- 

 leaved American Vetch. (Fig. 2206.) 



/.alhynix linraris Nutt. ; T. K (',. Fl. N. A. 1:27*,. 

 I'icia Americana var. linearis S Wats. l'n>c. Am. 



11: 1.^4. 

 / icia linearis Greene, Fl. Franeis. ;,. isgi. 



Perennial, glabrous or nearly so, stems weak, 

 often zigzag, i-2 long. Leaflets 4-7 pairs, nar- 

 rowly linear to linear-oblong, <)"-\W long, l /2 f '- 

 2" wide, rather thick, acute or obtusish, the apex 

 not toothed, mucronate; stipules 2 // -4 // long, half- 

 sagittate, acuminate, their bases prolonged, some- 

 times dentate; peduncles shorter than the leaves, 

 or about equalling them; racemes loose, 2-6-flow- 

 ered; flowers purple or purplish, about 9" long; 

 pod about i' long, 3" wide or rather more, gla- 

 brous, short-stalked. 



In dry soil. Northwest Territory to British Columbia, 

 Kansas. New Mexico and California. May-Aug. 



Nebraska to California, 



