I 



472 



LEGUMINOS^. 



clothed with adpressed pili. 1/. H. 

 humid places. O. glabra, D. C. ? 



follow O, pilosay D. C, p. 252. no. 43. of the present volume. 



Var, a, elongata (Led. 1. c.) stem 1-2 feet high. 



Var. (iy immila (Led. L c.) stem 2-6 inches high. 



Diffuse Mountain Milk-vetch. PI. -| to 2 feet. 



43 Oxy'tropus floribu'nda (D. C. prod. 2. p. 280.) Accord- 

 ing to Ledehour the following names belong to this species. 0. 

 teres, D. C. 0. longicuspis, Ledeb. 0, Fischeriy D. C. 0. vagU 

 natay D. C. O. tenella, D. C. 



Bundle-Jlofvered Mountain Milk-vetch. PI. -| to 1 foot. 



§ 1, Hypoglottidei, p. 2.53. 



Native of Altaia, in clothed with adpressed pili, 2-celled, more than twice the length 

 Corolla bluish violet. ' To of the calyx; cells many-seeded. ^2 . H. 



Native of Altaia, 



on rocks near the rivulet called Urmuchaika, about Buchtor- 

 minsk. Corolla bluish. 



no. 42. of the present volume. 

 Slender-stemmed Milk-vetcli 



►w A. Hyrcan 

 Shrub dwarf. 



§ 3. Onohrychoideiy p. 257. 



49 Astra'galus dia'phanus (Dougl. mss. Hook, fl. bor.amer. 

 p. 151.) plant prostrate, diffuse, pilose; stipulas small, ovate, 

 acuminated ; leaves with 5-9 pairs of obovate leaflets ; pedun- 

 cles shorter than the leaves; flowers small, capitate, loose; 

 bracteas ovate, acuminated, minute, rather shorter than the 

 41 Astra'galus pauciflorvs (Hook, fl. bor. amer. p. 149.) pedicels; legumes rather reflexed, linear, compressed, falcate, 



plant decumbent and hoary, beset with adpressed pili ; stipulas somewhat diaphanous, smoothish, 2-celled, many-seeded. If.H. 



concrete, opposite the leaves, lower ones entire ; leaves with 3-5 Native of North America, abundant on sandy soils near the 



pairs of oblong acute leaflets ; peduncles rather shorter than the great falls of the Columbia. Flowers small, purple. This spe- 



leaves, 2-4-flovvered ; flowers small, loosely racemose; bracteas cies should follow A. lentiginosuSy Dougl. p. 257. no. 49. of the 



length of pedicels; calyx beset with white pili, having the teeth 



about equal in length to the tube. 1^. FL Native of North 



America, among the rocks in the more elevated retxions of the 



Rocky Mountains. 



Corolla blue. This species should follow j4> hypoglottisj Linn. 

 p. 253. no, 1. of the present volume. 



FeW'Jlowered Milk-vetch. PI. decumbent. 



45 Astra'galus multicau'lis (Led. fl. ross. alt. ill. t. 316. 

 fl, alt. 3. p, 295.) caulescent, prostrate, or ascendent, pubescent ; 

 stipulas membranous, concrete, opposite the leaves ; leaflets 



present volume. 



Diaphanous~^oA(\edi Milk-vetch. PI. prostrate. 



50 Astra'galus compre'ssus (Led. fl. ross. alt. ill. t. 289. 

 Hoot long, descending, rather fusiform. fl. alt. 3. p. 304.) plant prostrate, suffruticose, silky ; leaflets 



oblong-linear, usually 3 pairs ; flowers somewhat capitate; pe- 

 duncles twice or thrice longer than the leaves ; vexillum a little 

 longer than the wings ; legumes racemose, erect, linear,^ com- 

 pressed, much 



longer 



oblong or obovate, emarginate, 5-6 pairs; racemes short; pe- volume. 



than the calyx, and clothed with ad- 

 pressed pili. %. H. Native of Altaia, at the river Irtyscb. 

 To follow A. arhusculus, PalL p. 258. no. 59. of the present 



duncles much longer than the leaves; bracteas longer than the 

 pedicels ; calyx beset with black or white pili ; legumes erect, 

 racemose, glabrous, ovate, triquetrous, short, half 2-celled ; 

 cells 1 -seeded. If. H. Native of Altaia, in muddy salt places 

 near the river Tschuja. Corolla pale purple. To follow A. 

 hypogloltisy p. 253. no. 1. of the present volume. 



Compressed'^odiiiedi Milk-vetch. 

 51 Astra'galus melanoca'rpus 



Fl. April, May. PL prost. 



Richards, in 



cat. 



(Fras. 



Hook, fl. bor. amer. p 



Many 



Fl. May, June. PI. prostrate. 



§ 2. Dissitijldri, p. 255. 



46 Astra'galus pube'rulus (Led. fl. ross. alt. ill. t. 291. ish-brown. 1/. H. 



fl. alt. 3. p. 299.) plant erect, many-stemmed, hoary; stems 

 terete, smooth; leaves stalked, with 6-11 pairs of oblong or 

 oblong-linear retuse leaflets ; flowers racemose, drooping ; pe- 

 duncles exceeding the leaves ; bi-acteas lanceolate ; tube of calyx 69. of the present volume, 

 twice the length of the teeth ; vexillum retuse, longer than the 



Frankl. journ. ed. 2. append, p. 28. 

 150.) plant clothed with silky hoary down ; stems short, decum- 

 bent ; stipulas ovate, acute; leaves with 8-10 pairs of ovate 

 leaflets, which are acute at both ends, but sometimes obovate and 

 obtuse; racemes capitate, loose, 6-8-flowered, longer than the 

 leaves, on longish peduncles ; flowers spreading ; legumes spread- 

 ing, elliptic-oblong, coriaceous, nearly 1-celled; wrinkled, black- 

 Native of North America, on the plains 

 of the Saskatciiawan, and on the Eagle and Red Deer Hills on the 

 same river. Flowers dark purplish-blue, varied with white. 

 Perhaps the same as the A. M'lssouriensis of Nutt. p. -58. no- 

 Root fusiform. 



emarginate wings; ovary glabrous. 1/. H. Native of Altaia, 



BlacJc-fruited Milk-vetch. PI. decumbent . 



N. B. Astragalus succumhensy Dougl. p- 263. no. 139., ^•'^' 



on hills at the rivers Ursal and Tschuja. Vexillunl pale lilac, Jtexus^ Dougl. p. 256. no. 34. and A. glareosuSy Dough p. -/^* 



no. 241. should follow A. lentiginosiis, Dougl. p. 257. no. • 

 of the present volume; and A. Purshii should follow A^ t.«ro- 



To follow A. sidccitusy Lin. p. 255. no. 29. of the present volume. 

 Puheridons Milk-vetch. Fl. May, June. PI. 1 foot. 



47 Astra'oalus vicioIdes (Led. fl. ross. alt. ill. t. 286. fl. linianuSy p. 263. no. 130. 



alt. 3. p. 301.) stems erect, glabrous, rather sidcate above; 

 leaves petiolate, with 8 pairs of oblong, obtuse leaflets ; flowers 

 racemose, drooping ; peduncles about twice the length of the 

 leaves; bracteas lanceolate ; teeth of calyx not half so long as 

 the tube ; vexillum emarginate; wings entire; legumes erect, 



. 159.) 



52 Astra'galus? lotiflorus (Hook, fl. bor. amer. p- 

 plant hoary and clothed with adpressed pili ; stems short, dittuse* 

 stipulas ovate, acuminated; leaves on rather long P^^*^^ ' 

 leaflets rather remote, usually G^pairs, oblong, obtuse ; P^"^^ 

 cles slender, shorter than the leaves ; flowers 3-4, loose, cap ^ 



ovate, triquetrous, coriaceous, 2-celled ; cells few-seeded, i;, H. tate, usually yellow ; bracteas subulate, longer than the P^"^^^. ' 



Native of Altaia, in meadows on both sides of the river Irtysch calyx campanulate, clothed with white pili, with the teeth suuu- 



and elsewhere. Flowers purplish. To follow ^.^if/ca/w*-, Lin. late and longer than the tube; petals about equal in leng ' 



p. 255. no. 29. of the present volume. legumes erectly spreading, ovate, acuminated, compressed, ^ery 



Velch'Uke Milk-vetch. PI. 1 foot. villous from white hairs, 1-celled, with the upper suture straign. 



48 Astra'galus leptocau'lis (Led. fl. ross. atl. ill. t. 284. and the lower one arched. 



fl. atl. 3. p. 296.) shrubby, much branched; stem silky; sti- 



Native of North America, 



l!/ . H. - pries 



about Carlton House on the Saskatchawan. Perhaps afP5\.„ 



pulas concrete, opposite the leaves ; leaflets oblong, usually 4 of Phaca very near Phaca villosa. Astragalus vill6sus ot 3iic» • 



pairs, nearly glabrous above, clothed with adpressed pili be- Lotus-fowered Milk-vetch. PL diflTuse. 



neath and on the margins ; racemes few-flowered ; peduncles 



more than twice the length of the leaves ; calyx beset with § 5. Vesicariiy p. Z5d* 



white and black hairs ; legumes horizontal, oblong, triquetrous, 5^ Asxeaga'ltjs candidissimus (Led. fl. ross. alt. t. 2Sr. «• 



k._:.l_ 



