258 



LEGUMINOS^:. CXXXI. ASTRAGALUS. 



legumes erect, oblong-lanceolate, villous, apiculatecl by the style. 

 Tj . F. Native of Eastern Siberia, and beyond tbe Baikal. D. C. 

 astr. no. 27. Gmel. sib. 4. t. 24. f. A. Flowers white, tipped 

 with purple. Very like the preceding species. 



Shrubby Milk- Vetch. Fl. June, July. Clt. 1804. Sh. 1 ft. 



59 A. ARBU'SCULA (Pall. astr. no. 24. t. 17.) plant erect, 

 shrubby ; leaves with 3 pairs of linear acute leaflets ; spikes of 

 flowers capitate, pedunculate, twice the length of the leaves ; 

 vexillum much longer than the wings ; legumes spreading, elon- 

 gated, linear, channelled on the back, clothed with adpressed 

 pubescence, fj . F. Native of Siberia, in the Kirghisean steppe. 

 Flowers purple. Habit of the two preceding species. 



Little-tree Milk- Vetch. Shrub. 



60 A. SUFFRUTICOSUS (D. C. astr. no. 5. exclusive of the sy- 

 nonymes,) plant diffuse, suffruticose, villous ; leaflets ovate-ob- 

 long, 7-10-pairs ; spikes capitate, few-flowered, pedunculate, 

 about equal in length to the leaves ; vexillum a little longer than 

 the wings ; calyx rather inflated and villous. J?.F. Native of 

 Siberia, beyond the Baikal. Flowers purple. Perhaps this 

 species belongs to a different section. 



Suffruticose Milk- Vetch. Shrub. 



61 A. ABORIGINO^RUM (Richards, in Frankl. journ. append, p. 

 746.) plant suffruticose, erect ; leaves with 5 pairs of lanceolate- 

 linear hoary-pubescent leaflets ; racemes axillary, loose, exceed- 

 ing the leaves. I? . H. Native of Arctic America. Flowers 

 white or bluish ; the keel decidedly blue. The roots are long 

 and yellow like liquorice. The Crees and Stone Indians gather 

 them in the spring as an article of food. 



Aborigin's Milk- Vetch. Shrub 1 foot. 



62 A. ADSU'RGENS (Pall. astr. no. 44. t. 31.) plant ascending, 

 svnoothish ; leaves with 11-12 pairs of lanceolate acute leaflets ; 

 stipulas acuminated, length of leaves ; spikes of flowers oblong, 

 pedunculate, longer than the leaves ; vexillum longer than the 

 wings ; legumes oblong, terete, and somewhat tetragonal, sul- 

 cate on the back, apiculated by the style, erect, clothed with ad- 

 pressed pubescence. 1. H. Native of Siberia beyond the 

 Baikal. Flowers bluish purple. 



Var. ft, prostratus (Fisch. hort. gor.) stems prostrate. If. . H. 

 Native of Siberia about Irkultsk. 



Assurgcnl Milk- Vetch. Fl. June, July. Clt. 1818. PI. asc. 



63 A. LAXMA'NNI (Jacq. hort. vind. 3. p. 37.) plant erect or 

 diffuse, smoothish ; leaves with 11-13 pairs of oblong-lanceolate 

 leaflets ; spikes of flowers pedunculate, oblong, longer than the 

 leaves; vexillum much longer than the wings ; legumes oblong, 

 trigonal, mucronate, having a furrow on the back. I/ . H. Na- 

 tive of Siberia and North America, on the plains of the Missouri 

 river. Flowers pale-purple or pale-blue. A. Laxmanni of Pall. 

 astr. t. 30. differs in its more rigid habit. The American plant 

 appears to be upright. Jacquin's one is procumbent. 



Laxmann's Milk-Vetch. Fl. July, Aug. Clt. 1804. PL li 

 foot or procumbent. 



64 A. AGRE'STIS (Dougl. mss.) stem erect, smooth ; leaflets 

 ovate-lanceolate, obtuse, beset with adpressed hairs ; peduncles 

 elongated, longer than the leaves ; spikes of flowers capitate ; 

 calyx villous ; bracteas lanceolate, not half so long as the calyx. 

 If. . H. Native of North America, near the Columbia river in 

 fields. Flpwers purple. 



Field Milk- Vetch. PL 1 foot. 



65 A. DORYCNIOI'DES (Dougl. mss.) plant erect, densely clothed 

 with hoary silky villi ; leaflets obovate-linear, obtuse ; calyx 

 smooth; racemes longer than the leaves. 1. H. Native of 

 North America, near the Columbia river. Flowers purple. An 

 elegant plant. 



Dorycnium-like Milk- Vetch. PL 1 foot. 



66 A. MICROCA'RPUS (D. C. astr. no. 29.) plant erect, gla- 

 brous ; leaves with 10-12 pairs of elliptic leaflets ; spikes of 



flowers capitate, pedunculate, equal in length to the leaves ; 

 vexillum oblong, a little longer than the wings ; legumes ovate, 

 compressed, pubescent, rather acute. i;.H. Native of Siberia, 

 in plains near the river Oby. Flowers purple. 

 Small-fruited Milk- Vetch. PL 1 foot. 



67 A. BARBATUS (Lam. diet. 1. p. 314.) plant erect, clothed 

 with canescent hairs ; leaves with 6-8 pairs of linear-lanceolate 

 leaflets ; spikes of flowers ovate, on short peduncles ; teeth of 

 calyx subulately-filiform, longer than the corolla, clothed with 

 stiff villi ; vexillum linear, much longer than the wings. I/ . H. 

 Native of Armenia. D. C. astr. no. 12. A. hispidus, Labill. 

 syr. dec. 1. t. 8. Flowers purple. 



Bearded Milk- Vetch. PL | foot. 



68 A. LABRADO'RICUS (D. C. prod. 2. p. 287.) plant procum- 

 bent, clothed with minute pubescence ; leaflets ovate ; spikes of 

 flowers pedunculate ; legumes secund, straight, acuminated at 

 both ends, pendulous. 1( . H. Native of the north of Canada 

 and of Labrador. A. secundus, Michx. fl. bor. amer. 2. p. 67. 

 but not of D. C. Flowers of a deep purple-colour. Perhaps 

 belonging to a different section. 



Labrador Milk- Vetch. PL procumbent. 



69 A. MISSOURIE'NSIS (Nutt. gen. amer. 2. p. 99.) plant almost 

 stemless, rather diffuse, clothed with canescent villi ; stipulas 

 ovate; leaves with 5-10 pairs of small obovate-elliptic leaflets ; 

 spikes of flowers capitate, standing on peduncles, which are a little 

 longer than the leaves ; calyx covered with black hairs ; legumes 

 oblong, acuminated, transversely-dilated, nearly glabrous, half- 

 bilocular. If. . H. Native of Upper Louisiana, on hills about 

 the Missouri. Oxytropis argentatus, Pursh, fl. sept. amer. 2. p. 

 473. exclusive of the synonymes. Flowers purple, but there is a 

 variety with white flowers also. Perhaps belonging to a different 

 section. 



Mixs..uri Milk-Vetch. PL ^ foot. 



70 A. CARYOCA'RPUS (Ker. bot. reg. t. 176.) plant having nu- 

 merous, prostrate, assurgent stems, rising from the same root, 

 clothed in every part with hoary-silky down ; stipulas ovate, 

 acute ; leaves with 9-12 pairs of elliptic leaflets ; peduncles 

 shorter than the leaves ; racemes loose-flowered ; legumes nut- 

 formed, inflated, fleshy, mucronate, glabrous, many-seeded. 

 If.. H. Native of Louisiana. A. crassicarpus, Fras. cat. 1813. 

 A. carnosus, Nutt. gen. amer. 2. p. 100. but not of Pursh. 

 Flowers of a pale-violet colour. Perhaps belonging to a different 

 division of the genus. 



Nut-fruited Milk- Vetch. FL June, July. PL prostrate. 



4. Sesdmei (Semsen is the Arabic name of some species). 

 D. C. prod. 2. p. 287. Stipulas distinct, not adhering to the 

 petiole. Flowers purplish, disposed in dense spikes or heads. 

 Legumes straigltt. Roots annual. 



71 A. PENTAGLOTTIS (Lin. mant. 274.) plant diffusely-procum- 

 bent, rather villous ; stipulas ovate ; leaves with 4-9 pairs of 

 obovate retusely-emarginate leaflets ; peduncles rather longer 

 than the leaves ; legumes half-ovate, somewhat triquetrous, 

 echinated with tubercles, which are usually piliferous, disposed 

 in heads ; cells 1 -celled. O- H. Native of Spain and Barbary, 

 on hills. D. C. astr. no. 16. Cav. icon. t. 188. A. cristatus, 

 Gouan. ill. 59. A. echinatus, Lam. A. prociimbens, Mill. A. 

 dasyglottis, Pall. Flowers blue and white. 



Five-tongned or Five-podded Milk- Vetch. Fl. Ju. Jul. PL pr. 



72 A. GLA'UX (Lin. spec. 1097.) plant procumbent, clothed 

 with canescent villi ; stipulas ovate-lanceolate ; leaves with 8-13 

 pairs of small, oblong, acutish leaflets ; peduncles longer than the 

 leaves; vexillum linear; legumes erect, ovate, triquetrous, mucro- 

 nate, villous, disposed in heads ; cells 1 -seeded. O- H. Native 

 of Spain and the south of France, in arid places. D. C. astr. no. 

 22. Clus. hist. 2. p. 242. with a figure. Allied to the smaller 



