LEGUMINOSE. 47 
21. A. Andersoni, Gr. Densely white-hairy: leaflets 13-25 pairs: pods falcate, 
22, A. Congdoni, Watson. Less hairy: leaflets 8-10 pairs: pod narrower. 
23. A. Gibbsii, Kellogg. Soft-hairy: pod much curved, an inch or more long. 
24. A. collinus, Dougl. Hoary: pod slightly curved, erect, less than 1 inch long. 
25. A. Californicus, Greene. Stouter: pod straight, purple-bloched, 14 inches long. 
26. A. Antiselli, Gr. Ashy-hairy; leaflets 21-29: straight pod, 8-9 lines long. 
27. A. Bolanderi, Gr. Scarious stipules united: pcd ovoid, curved, veiny. 
28. A. Webberi, Gr. Silvery-silky: pods thick-walled, glabrous, sutures prominent, 
29. A. pychnostachyus, Gr. Stout, hoary: pods reticulated, thin-walled, acute. 
30. A. Lemmoni, Gr. Slender, procumbent, green: leaflets 9-11, mucronate. 
31, A. Austins, Gr. Tufted, silvery-silky: flowers in a close head, whitish. 
32. A. Kentrophyta, Gr. Flowers 1-3 on very short peduncles, 2 lines long. 
12. VICIA, Tournefort. 
Perennials: peduncles 4-18-flowered. 2.2.2.0... 0c cece cece e eee cee e ee eteeeees 1,2 
Annuals: peduncles short, 1-2-flowered..........0 cece cece cece eee cere eceeeees 3,4 
1. V. gigantea, Hooker. Stout, 5-10 ft. high: petals dull-purplish. 
2. V. Americana, Muh]. Glabrous, 1-4 ft. high: leaflets 8-16, variable. 
Var. truncata, Brewer. Leaflets truncate or toothed at apex, somewhat hairy. 
Var. linearis, Watson. Leaflets linear: mostly low and slender. 
3. V. exigua, Nutt. Mostly low: leaflets about 8: flowers 3 lines long, purplish. 
4. V. sativa, Linn. Stouter: flowers nearly sessile, 1 inch long, violet. 
138. LATHYRUS, Linnzus. 
Leaves with tendrils: racemes several—many-flowered. 
Pod not onastipe. Stipules large: glabrous............0- cece cee e ee ee eres 1, 2,3 
Stipules narrow: more or less pubescent. . . . Siachache oh eee Ss 7, 8 
Pod ona short stipe. Stems stout, tall........... cece ence cece eee 4, 5,6 
Leaves without tendrils, or rarely with them: pods on short stipes......... 9, 10, 11 
a 
1 maritimus, Bigelow. Leaflets 3-5 pairs, close flowers purple. 
2. L. polyphyllus, Nutt. Similar: leaflets 6-10 pairs, thin, not sessile. 
3. L. sulphureus, Brewer. Flowers sulphur or dull yellow, 5-7 lines long. 
4. L. Nuttallii, Watson. Loosely woolly-hairy: petals red-purple, 6-8 lines long. 
5. L. Californicus, Watson. Stem winged: leaflets soft-pubescent: petals 7-9 lines 
long, yellowish or pinkish. This and next under L. venosus, in Bot. Cal, ete. 
6. L. Bolanderi, Watson. Stems wingless: glabrous: flowers purple. 
7. L. vestitus, Nutt. Slender: stems wingless: flowers pale rose or violet. 
8 L. palustris, L. Leaflets 2-4 pairs, linear: flowers few, purplish, small 
9. L. litoralis, Endl. Densely silky: a small terminal leaflet: pod hairy. 
L. Nevadensis, Watson. Slender: standard purplish; wings and keel yellowish, 
