ASTBAQALU3. LEGUMINOS.'E. 329 



Torr. ! in aim. lye. NeiC' York, 2. p. 179. A. dasygloUis, Null. I mss., not 

 of Ledeb. ? 



On the Sa^katchawan, and other parts of British America, Dnnnmond ! 

 Douglas. fl. Ol\ tlie Piallo, and near the sources of the Cana- 

 dian,'' iV»//«/// Dr. James! May.— 4 Stem 3-6 inches loner. Leallets 

 about ha f an inch lon^, olten emarginate. Bracts lanceolate. Teeth of the 

 calyx subulate. Corolla bright purple. Ovary somewhat tomentose (in /3. 

 villous), with 14-]6ovules.— Our /?. is near A. Onobrychcides, and is yroba- 

 bly the Astragalus from Altai noticed l.y Hooker, in which the legumes are 

 4-S-seeded. 



2. A. pmicifora (llooli.) : decumbent, canescent Avith appressed hairs; 

 lower stipules cohering to the summit'; leaflets 3-5 pairs, oblong, acute ; pe- 

 duncles about as long as the leaves, 2-4-flowered ; flowers (small) in loose 

 racemes; bracts as long as the pedicels; calyx clothed with whitish hairs, 

 the teeth as long as the tube. Hook. Ji. Bor.-Am. 1, p. 149. 



Among rocks in the more elevated regions of the Rocky Mountains, 

 Drummond.— li Root long and slender: caudex divided and throwing ofT 

 several slender decumbent stems from a span to a loot in length. Leaflets 

 3-4 lines long. Upper stipules large, cohering only below. Peduncles 1-li- 

 inch long. Calyx short, campanulate. Petals deep blue. Legume un- 

 known. Hook. 



3. A. vaginalis (Pall.) : erect, pubescent ; leaflets linear-lanceolate, acute; 

 peduncles longer than the leaves; flowers in dense spikes, nodding; legumes^ 

 linear, straight. DC— Pall. Astrag. t. 36, e.v DC.prodr. 2. p. 2S3; Hook, fl. 

 Bor.-Am. 1. p. 149. 



Wooded country of Subarctic America, Richardson. — Very similar in 

 habit to Phaca Aboriginorum. Hook. Flowers white and purple. DC. — A 

 native also of Siberia. 



♦* Stipules neither cohering with each other nor adnatc to the petiole ; flowers purple 

 or while, distant : legumes straight . 



4. A. gracilis (Nutt.) : erect, slender, pubescent ; leaflets 6-10 pairs, lin- 

 ear, remote, truncate or emarginate ; racemes much longer than the leaves ; 

 legumes elliptical, straight, somewhat triquetrous, nodding, pubescent, one- 

 celled, the lower suture a little inflexed.— A'««. .' gen. 2. p. WS) (excl. syn.) ; 

 DC. prodr. 2. p. 2S4. Dalea parviflora, Pursh ! I. c. p. 739. 



Plain? of the Missouri to the Rocky Mountains, Bradhnry! Nuttall!' 

 Dr. James ! May.— About 2 feet high. Leaflets f of an inch long, scarce- 

 ly one line wide. Stipules ovate, acuminate. Spike 2-3 inches long ; the 

 lower flowers remote. Flowers 3-^4 lines long, somewhat secund, pale pur- 

 ple. Bracts lanceolate, scarcely longer than the short pedicels. Calyx canes- 

 cently hirsute. Vexillum obovate, emarginate. "Legume about 2 lines 

 Ion?, many-seeded, acr.minated with the recurved style." Nuttall.— A. leiiel- 

 lus, Purs/j,, which has been referred to this species, was founded, according 

 to Pursh, suppl. 2. p. 789, on the leaves of his Ervum multillorum and tha 

 fruit of an unknown Astragalus. 



5. A. stmnphylhcs : erect, glabrous ; leaflets 4-7 pairs, linear, remote ; ra- 

 cemes oblong, loose, short, pedunculate, longer than the leaves ; stipules small 

 cvate, rather obtuse ; pedicels longer than the minute lanceolate bracts ; ca- 

 lyx pilo;e with bLickish hairs; the teeth rather obtuse, much shorter than the 

 tube. — A. leptophvHus, Nutt. ! in jozcr. acad. Philad. 7. p. 18, not of Desf. 



Head-waters of the Missouri, Mr. Wyeth ! June. — A foot or more high- 

 Stem rather stout, striate (scarcely anjular), obtuse, slightly hirsute beneath. 

 Raceme about 10-flowered. Flowers half an inch long, purplish ? (ochroleu- 

 C0U3 ? NiUl.) Teeth of the calyx about one-third the length of the tube 



42 



