472 



LEGUMINOS^:. 



clothed with adpressed pili. If. . H. Native of Altaia, in 

 humid places. O. glitbra, D. C. ? Corolla bluish violet. To 

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



/";. . ftoiitjula (Led. 1. c.) stem 1-2 feet high. 



Var. /', pumila (Led. 1. 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 Ledebour the following names belong to this species. O. 

 teres, D. C. O. longicitspts, Ledeb. O. Fiscfieri, D. C. 0. vagi- 

 nuta, D. C. 0. tenella, D. C. 



Bundle-flonered Mountain Milk-vetch. PI. ^ to 1 foot. 



| 1. Hypoglottidei, p. 2.53. 



41 ASTRA'GALUS PAUCIFLORUS (Hook, fl. bor. amer. p. 149.) 

 plant decumbent and hoary, beset with adpressed pili ; stipulas 

 concrete, opposite the leaves, lower ones entire ; leaves with 3-5 

 pairs of oblong acute leaflets ; peduncles rather shorter than the 

 leaves, 2-4-flowered ; flowers small, loosely racemose ; bracteas 

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

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

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

 Rocky Mountains. Root long, descending, rather fusiform. 

 Corolla blue. This species should follow A. hypoglottis, Linn. 

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



Few -flowered Milk-vetch. PI. decumbent. 



45 ASTRA'GALLS MULTICAU'LIS (Led. fl. ross. alt. ill. t. 31 C. 

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

 stipulas membranous, concrete, opposite the leaves ; leaflets 

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

 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. 1. H. Native of Altaia, in muddy salt places 

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

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



Many-stemmed Milk-vetch. Fl. May, June. PL prostrate. 



2. Dissitiflori, p. 255. 



46 ASTRA'G AI.US PUBE'RULUS (Led. fl. ross. alt. ill. t. 291. 

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

 terete, smooth; leaves stalked, with G-ll pairs of oblong or 

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

 duncles exceeding the leaves ; bracteas lanceolate ; tube of calyx 

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

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

 on hills at the rivers Ursal and Tschuja. Vexillum pale lilac. 

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



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



47 ASTRA'GALUS VICIOIDES (Led. fl. ross. alt. ill. t. 286. fl. 

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

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

 racerrose, 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, 

 ovate, triquetrous, coriaceous, 2-celled ; cells few-seeded. 7(L. H. 

 Native of Altaia, in meadows on both sides of the river Irtysch 

 and elsewhere. Flowers purplish. To follow A. sulcatus, Lin. 

 p. 255. no. 29. of the present volume. 



Fetch-like Milk-vetch. PI. 1 foot. 



48 ASTRA'GALUS LEPTOCAU'LIS (Led. fl. ross. all. ill. t. 284. 

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

 pulas concrete, opposite the leaves ; leaflets oblong, usually 4 

 pairs, nearly glabrous above, clothed with adpressed pili be- 

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

 more than twice the length of the leaves ; calyx beset with 

 white and black hairs ; legumes horizontal, oblong, triquetrous, 



clothed with adpressed pili, 2-celled, more than twice the length 

 of the calyx; cells many-seeded. Ij. H. Native of Altaia, 

 on rocks near the rivulet called Urmuchaika, about Buchtor- 

 minsk. Corolla bluish. To follow A. Hyrciinus, Pall. p. 256. 

 no. 42. of the present volume. 



Slender-stemmed Milk-vetch. Shrub dwarf. 



3. Onobrychoidei, 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 

 pedicels ; legumes rather reflexed, linear, compressed, falcate, 

 somewhat diaphanous, smoothish, 2-celled, many-seeded. ! . H. 

 Native of North America, abundant on sandy soils near the 

 great falls of the Columbia. Flowers small, purple. This spe- 

 cies should follow A. lentiginosus, Dougl. p. 257. no. 49. of the 

 present volume. 



Diaphanous-pod&eA Milk-vetch. PI. prostrate. 



50 ASTRA'GALUS COMPRE'SSUS (Led. fl. ross. alt. ill. t. 289. 

 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 than the calyx, and clothed with ad- 

 pressed pili. 1. H. Native of Altaia, at the river Irtysch. 

 To follow A. arbuscuhis, Pall. p. 258. no. 59. of the present 

 volume. 



Compressed-podded Milk-vetch. Fl. April, May. PI. prost. 



51 ASTRA'GALUS MELANOCA'RPUS (Fras. cat. Richards, in 

 Frankl. jonrn. ed. 2. append, p. 28. Hook, fl. bor. amer. p. 

 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- 

 ish-brown. I/ . H. Native of North America, on the plains 

 of the Saskatchawan, 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. Missouriensis of Nutt. p. 258. no. 

 69. of the present volume. Root fusiform. 



Black-fruited Milk-vetch. PI. decumbent 



N. B. Astragalus succumbens, Dougl. p. 263. no. 139., A. in- 



fiexus, Dougl. p. 256. no. 34. and A. glarcbsus, Dougl. p. 271. 



no. 241. should follow/^, lentiginosus, Dougl. p. 257. no. 49. 



of the present volume ; and A. Ptirshii should follow A. Caro- 



Unir'inus, p. 263. no. 130. 



52 ASTRA'GALUS? LOTIFLORUS (Hook, fl. bor. amer. p. 159.) 

 plant hoary and clothed with adpressed pili ; stems short, diffuse ; 

 stipulas ovate, acuminated; leaves on rather long petioles; 

 leaflets rather remote, usually 6 pairs, oblong, obtuse ; pedun- 

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

 tate, usually yellow ; bracteas subulate, longer than the pedicels ; 

 calyx campanulate, clothed with white pili, with the teeth subu- 

 late and longer than the tube ; petals about equal in length ; 

 legumes erectly spreading, ovate, acuminated, compressed, very 

 villous from white hairs, 1-celled, with the upper suture straight, 

 and the lower one arched. I/. H. Native of North America, 

 about Carlton House on the Saskatchawan. Perhaps a species 

 of Phaca very near Phaca. villosa. Astragalus villosus of Michx. 



Lotus-Jlowered Milk-vetch. PI. diffuse. 



5. Vesicarii, p. 259. 



53 ASTRAGA'LUS CANDIDISSIMUS (Led. fl. ross. alt. t. 287. fi f 



