25G 



LEGUMINOSiE. CXXXL Astragalus. 



Cracca-Yike Milk- Vetch. PI. diffuse. 



leaflets linear ; peduncles longer than the leaves, few-flowered; 



31 A. pRosTRA'TUs(Hook, in Beech, voy. p. 18.) plant diffuse ; flowers umbellate ; legumes subulate, triquetrous, rather arched, 

 leaflets pubescent, obtuse ; stipulas concrete, but free from the and much spreading. 1/. Tj . H. Native of Bessarabia, about 



Odessa, and of the south of Podolia. Flowers purple. 



//"o/neJ-podded Milk-Vetch. PI. procumbent, 



39 A. CERATorDES (Bieb. suppl. 492.) plant depressed, 



clothed with silky villi ; leaflets oblong-elliptic; peduncles longer 



tlian the leaves ; racemes somewhat capitate ; legumes subulate, 



100.) plant erect, triquetrous, erect, 4-times longer than the 'calyx, clothed with 



remote; racemes adpressed bristles. %. H. Native of Siberia, on the Altaian 



petiole; racemes pedunculate, much longer than the leaves; 

 flowers loose, almost sessile ; calyxes clothed with black pubes- 

 cence. If . G. Native of Chili, about Conception. Flowers 



purple. 



Prostrate Milk- Vetch. 

 32 



PL prostrate 



A. gra'cilis (Nutt. gen. amer. 2. p. 

 slender, pubescent ; leaflets oblong-linear. 



pedunculate, longer than the leaves; legumes very short, droop- mountains. A. subulatus Altaicus, Pall. astr. no. 27. t. 20. A, 

 ing, elliptic-ovate, rather triquetrous, pubescent, 1 -celled, usually Flowers purple. 



containing 4 seeds. 



"2/ . H. Native of North America, on the 



h. fl. amer. 



2. 



//orn-//7i:e-podded Milk-Vetch. PI. depressed, 

 plains on the banks of the Missouri. A. tenellus, Pursh. fl. amer. 40 A, macrolobus (Bieb. suppl. 493.) plant depressed, clotW 



473. E'rvum multiflorum, ibid. p. 739, Dalea with white adpressed hairs; leaflets oblong-elliptic ; peduncles 



rather longer than the leaves ; racemes somewhat capitate ; le- 

 gumes subulate, triquetrous, erect, beset with adpressed bristles, 

 "■ ' -' '^ Native of Siberia, on 



P^ ^j P., . . ^ . . .... 



parviflora, ibid. p. 474. according to Nuttall. Psoralea parvi-* rather longer than the leaves; racemes somewhat capitate ; le- 



Flowers pale purple. 



Clr. 1821. 



flora, Poir. suppl. 4. p. 590, 

 Slender Milk- Vetch, 



33 A. FLi 



Fl. June, July. 



PI. 2 ft. 



us (Doug, mss.) plant erect, flexuous, downy 



thiice the length of the calyx. 1/. H. 



the Altaian mountains, and on the banks of the Yenesee, in tlie 



racemose 



calyx smoothish ; bracteas not much longer than the 

 pedicels. 1/.H. Native of North America, near the Colum- 



in a young state; stipulas distinct ; leaflets distant, linear, ob- Kirghisean-steppe. Flowers white. 



tuse, beset with close-pressed hairs beneath ; flowers distant, Long-podded Milk-Vetch. PI, depressed. 



41 A. virga'tus (Pall. astr. t. 18. exclusive of the synonymes,) 

 plant erect, sufFruticose, rather canescent ; leaves with about 6 

 bia river. Flowers purple. Plant with the habit of Vicia crdcca. pairs of linear-lanceolate acute leaflets ; racemes spicate, mucli 

 Var. /3, alba (Dougl. mss.) flowers white. 

 Flextious-%iemvc\edi Milk- Vetch. PI. 1 foot. 

 31 A. infle'xus (Dougl. mss.) plant white and woolly ; stems 

 flexuous ; stipulas distinct ; leaves with numerous pairs of ob- 



olate leaflets ; racemes pedunculate, longer than the 

 leaves ; flowers remote ; bracteas subulate, longer than the 



long-h 



woolly. 



tube of the calyx ; legumes curved upwards, very 

 11, H, Native of North America, on the banks of the Colum- 

 bia river. Flowers large, purple. 



elongated ; the lower flowers very remote ; legumes oblong, tri- 

 quetrous, twice the length of the calyx. ' ^2 • ^- H. Native of 

 Hungary, Tauria, Tartary, at the Volga, and at the Caspian sea, 

 in sandy places. A. v^rius, GmeL jun. trav. 2. p. 11*3» ^* I'* 

 D. C. astr. no. 34. A. virgatus, Bieb. fl. taur. and suppl no. 

 4G5. Flowers purple. 



Var. /3, Uralensis (D. C. prod. 2. p. 285.) stems shorter than 



^ ^ ^ ^ -- Native of 



the peduncles ; racemes few-flowered. 



^ifi 



PL 1 foot. 



35 A. coLtrNus (Dougl. mss.) plant puberulous, erect ; sti- 

 pulas joined? leaves with numerous pairs of obovate-lanceolate 

 emarginate leaflets ; racemes on long peduncles ; flowers dis- 



bracteas subulate, twice the length of the pedicels ; le- 



Native 



the Ural mountains. A. subulatus, Urale 

 C. ex Bieb. suppl. 493. 

 Twiggy Milk-Vetch. 

 3 feet. 



12. !/• H. 



Pall. astr. t. 20. 



Perhaps a proper species. 

 Fh May, Aug. Clt. 1806. 



PI. 1 to 



uf- 



tant 



gumes straight, between terete and compressed. 

 of North America, near the Columbia river. 



%. H. 



Hill Milk-Vetch. PI. 1 to 2 feet. 



Flowers purple. 



42 A. Hyrca'nus (Pall. astr. no. 29. t. 22.) plant erect, 

 fruticose, pubescent ; leaves with 3 pairs of linear acute leaflets, 

 racemes usually 5-flowered, hardly longer than the leaves ; le- 

 gumes oblong, mucronate, villous, twice the length of the cal}X. 

 1/ . P2 . H. Native on the shores of the Caspian sea, at Derbent. 



3C A. succule'ntus (Rich, in Frankl. trav. p. 226.) plant Flowers purple. Perhaps only a variety of ^. t^^Vg^^"^ ^^*^ 

 prostrate, pubescent; leaflets 21-25, oblong-obovate, slightly ing to Bieberstein. 



ord 



emargmate ; stipulas distinct ; racemes shorter than the leaves ; 

 flowers remote ; bracteas ovate, acute, longer than the pedicel ; 

 calyx beset with black hairs. 1/ . H. Native of North America, 

 in the vicinity of the Saskatchawan river, and in the Arctic re- 



Flowcrs large, purplish, with an 



gion 



Lindl. bot. reg. 1324. 

 oblong vexillum. 



Succulent M\lk-\ctch. Fl. June. Clt. 1826. PI. prostrate. 



Hyrcanian Milk-Vetch. PI. 1 to 2 feet. . , 



43 A. brachy'lobus (D. C. prod. 2. p. 285.) plant erectish; 

 shrubby at the base, clothed with adpressed silky white aov\'n, 

 leaves with 2-S pairs of linear acute leaflets ; racemes peduncu- 

 late, much longer than the leaves, 6-8-flowered ; legumes oblong, 

 pubescent, mucronate by the style, hardly longer than the calj j 

 \l . H. Native of Siberia, at Lake Inderskoi. Flowers purple- 



37 A.subula'tus (Bieb, fl. taur. no. 1480. but not of Desf.) Allied to ^. virgatus according to Fischer. Leaflets 12-15 h»^s 

 plant diffiisc and hoary from white pili ; leaflets linear ; racemes long. 



remote 



pedunculate, loose, longer than the leaves ; the lower flowers 



legumes subulate, triquetrous, rather arched, erectish, 

 5 times the length of the calyx. 1^. H. Native of Tauria and 

 Siberia, in fields. A. subuliformis, D. C. astr. no. 33. 



Var. a, viajor (D. C. prod. 2. p. 284.) flowers approximate, 

 purple. Pall. astr. t. 20. 



/5, macilentus (D. C. 1. c.) flowers fewer, remote, and 



purple. Pall. astr. t. 20. 



) flowers fewer, and cream- 



coloured. Native of Caucasus, on the banks of the Volgra and 

 the Don. Perhaps a distinct species. 



^«6w/a^e-podded Milk-Vetch. Fl. Ju. Jul. Clt. 1820. PI. dif. 



88 A. coRNicuLATUs (Bieb. pi. ross. cent. 1. t. 45. ex suppl. 



fl. taur. 492.) plant procumbent, suflruticose, hoary, and pilose ; genus is doubtful. 



Short-podded MiWi-Neich. PI. 1 foot. i 



44 A. a'nnuus (D. C. astr. no. 25.) plant rather ^J^^"^^'^.^ 

 rather glabrous ; leaflets linear ; racemes longer than the '^^^ * 

 flowers spreading ; vexillum twice the length of the wings- ' • 

 H. Native country as well as the legumes unknown. F^^ * 

 belonging to a different section of the genus. 



Annual Milk -Vetch. PI. diffuse. . 



45 A. BiFLORus (Viv. fl. lyb. 44. t. 20. f. 1.) P'^'^^S 

 clothed with canescent hairs ; stipulas very short ; leaves wUn - 

 pairs of elliptic leaflets ; peduncles longer than the leaves, usu; 

 bearincr only 2 flowers; calyx covered with stiff* black M ^ 



Native of Cyrenaica. Flowers blue. The 'f?"V 

 being unknown, the place which the plant should occupy ^^ 



O. 



H. 



