445 
10, diadelphous ; style transversely flattened, but not grooved 
down the back, as in Piswm, ascending and bent upward obtusely 
or nearly at right angles with the ovary, dilated at summit and 
longitudinally bearded on the inner face, next the free stamen, for 
4-¥ its length, xot.acute and bearded cylindrically at the tip as_ 
in Vicia, sometimes twisted so as to appear reversed, persistent ; 
calyx campanulate, dilated, not funnel-formas in Vicia, 5-toothed ; 
legumes oblong, compressed, 2-valved, 1-celled, many-ovuled ; 
seeds globular or angular, mck 
Artificial Key to the Species. 
Leaflets a single pair. 
Annual; racemes 1-2-flowered ; flowers purple, 
Perennial; racemes 4-10-flowered ; flowers yellow, 
Leaflets 2-severa] pairs, 
Stems winged. : 
Leaflets 3 pairs, glabrous or pubescent; racemes 2-6-flowered, 
3. L, palustris. \ 
Leaflets 4~6-paired ; pubescent; racemes 6-15-flowered, 4. Z. Watsoni. 
Leaflets 4~6 pairs ; glabrous, coriaceous, ; racemes 6~-15-flowered, 
5. L. Fepsoni. 
1. L, pusillus. 
2. L. pratensis. 
Stems wingless. 
Plants glabrous, puberulent or pubescent, not villous. 
Climbing by simple or 3-forked tendrils. 
Stipules large, mostly half as large as adjacent leaflets. 
Leaflets 2-5 (mostly 3) pairs. 
Flowers cream-colored, 
Flowers purple. 
'  _Racemes 2-6-flowered. 
Leaflets membranaceous. 
Flowers less than 1~5 cm. long, 7. L. myrtifolius 
Flowers at least 2 cm. long, 8. L. pauciflorus. Rise 
Leaflets coriaceous, 19. L, parvifolius. 
Racemes many-flowered, 9. L. Bolanderi. 
Leaflets 5-7 pairs. 
Flowers yellow, 
Flowers purple. 
Raceme exceeeding the rachis of its leaf, 
; : 11. L. Alefeldt. 
Raceme not exceeding the rachis of its leaf. 
hy Glabrous, flaccid, leaflets 5-8 pairs, 12. ZL. polyphyllus. 
Glabrous, rigid, leaflets 4-6 pairs, 13. 2. maritimus. 
Pubescent ; leaflets 5-7 pairs, 14. L. vestitus. 
Stipules small or minute, not half as large as adjacent leaflet. 
‘ Flowers white, 15. L. dactifiorus, 
Flowers purple, 2.5~3-5 em. long. : Se ee 
6. L. ochroleucus. 
1o, LZ. sulphureus. 
* 
