Vol.. II.] 



PEA FAMILY. 



329 



(Fig. 2213.) 



10. Vicia angustifolia Roth. Smaller Common Vetch. 



Vicia angustifolia Roth, Tent. Fl. Germ, i: 310. 



1788. 

 Vicia saliva var. angustifolia Ser. in DC. Prodr. 



2: 361. 1825. 



Annual, glabrous or puberulent; stem slen- 

 der, i-2 long. Stipules mostly half-sagit- 

 tate, toothed, or entire; leaves short-petioled, 

 or nearly sessile; leaflets 8-16, linear, lanceo- 

 late, or oblanceolate, 4 // -i8 // long, i // -2 // 

 wide, acute, obtuse, truncate or emarginate 

 at the apex, mucronulate, those of the lower 

 leaves commonly obovate, broader and shorter; 

 flowers I or 2 in the upper axils, purple, 

 6 // -8 // long; calyx-teeth as long as the tube 

 or shorter; pod linear, glabrous, i / -2 / long. 



In fields and waste places, Nova Scotia to Flor- 

 ida, mostly near the coast. Naturalized from 

 Europe. Widely distributed as a weed in tem- 

 perate regions. April-July. 



ii. Vicia Sepium L. Bush Vetch. 

 Wild Tare. (Fig. 2214.) 



Vicia Sepium L. Sp. PI. 737. 1753. 



Perennial by slender stolons, minutely 

 pubescent; stem slender, 2-3 long. Leaves 

 short-petioled, 2 / -6 / long; leaflets 10-18, ovate 

 or oval, 6 // -i2 // long, 3 // ~7 // wide, emargi- 

 nate or truncate at the apex, mucronulate, 

 thin; stipules half-sagittate, 5" long or less; 

 racemes in i or more of the upper axils, 2-6- 

 flowered, Y^'-\' long, nearly sessile; flowers 

 very short-pedicelled, pale purple, 6 // -io // 

 long; calyx-teeth unequal, shorter than the 

 tube; pod io // -i5 // long, about 3 // wide, 

 glabrous. 



Railway embankment near Hamilton, Ontario. 

 Adventive or fugitive from Europe. Native also 

 of Asia. Called also Crow-peas. May-July. 



Ervum Lens L , the Lentil, distinguished from 

 all our species of Vicia by its elongated calyx- 

 lobes and oval, i-2-seeded pod, is collected oc- 

 casionally as a waif, not established. 



37. LATHYRUS L. Sp. PI. 729. 1753- 



Herbaceous vines, rarely erect herbs, with pinnate mostly tendril-bearing leaves, and 

 racemose or sometimes solitary flowers. Calyx oblique or gibbous at the base, its teeth 

 nearly equal or the upper ones somewhat shorter than the lower. Corolla nearly as in Vicia, 

 but commonly larger. Stamens diadelphous (9 and i), or monadelphous below. Ovary 

 sessile or stalked; ovules generally numerous; style curved, flattened, hairy along its inner 

 side. Pod flat, or sometimes terete, 2-valved, dehiscent, continuous between the seeds. 

 [Ancient Greek name of some leguminous plant.] 



About no species, natives of the northern hemisphere and of South America. Besides the fol- 

 lowing, about 25 others occur in the southern and western parts of North America. 

 Leaflets 3-6 pairs; flowers purple. 



Stipules broad, foliaceous; plant of the seashore and "the Great Lakes. 

 Stipules half-sagittate or small, or wanting; inland plants. 

 Plants climbing or trailing; stipules present; pod sessile. 

 Leaflets ovate or oval, large; flowers 10-20. 

 Leaflets linear, oblong or oval, smaller; flowers 2-6. 

 Leaflets linear or linear-oblong; stem winged. 

 Leaflets oblong or oval; stem wingless. 

 Plants mainly erect; stipules often wanting; pod stipitate. 

 Leaflets lanceolate or oblong. 

 Leaflets linear. 



Leaflets 3-5 pairs; stipules foliaceous; flowers yellowish-white. 

 Leaflets i pair; stipules foliaceous; flowers bright yellow. 



i. L. maritimus. 



2. L. venosus. 



3. L. palustris. 



4. L. myrtifolius. 



5. L. decaphyllus. 



6. L. ornatus. 



7. L, ochroleucus. 



8. L. pratensis. 



