338 LEGUMINOS^. Oxytropis. 



lets I of an inch Ions:. Peduncles and petioles stout. Flowers large, bright 

 purple. Legume about ^ of an inch long and 2i lines wide, somewhat com- 

 pressed contrary to the dissepiment, perfectly 2-celled. 



+ Doubtful species. 



40. A. miser (Dougl.) : stem weak ; leaflets 5-10 pairs, linear, somewhat 

 pubescent ; stipules acuminate ; calyx blackish. Ddugl. in Hook. Ji. Bor.- 

 Am. 1. p. 153, note. 



Low hills of Spokan River, 60 miles from its confluence with the Oregon. 

 May-June. If Doup-Iai^. — Of this plant Mr. Douglas sent home no speci- 

 mens. Mr. Nuttall obtained what he considers the same species, but with- 

 out fruit. The following is the short description which he communicated to 

 us. — " Root large, fusiform. Stem slender, almost prostrate, somewhat hir- 

 sute. Leaflets 7-8 pairs, obovate, acute. Stipules broadly ovate, united, 

 opposite the leaves. Racemes feAv-flowered, about the length of the leaves. 

 Bracts minute. Calyx hirsute with blackish hairs ; the teeth acute and short. 

 Flowers small, pale purpUsh. — Perhaps a Phaca." 



34. OXYTROPIS. DC. Astrag., ^ prodr. 2. p. 275. 



Calyx 5-toothed. Keel with a subulate point. Legume partly 2-celled hj 

 the introflexion of the upper or placental suture. — Perennial (very rarely an- 

 nual) herbaceous or sometimes sufTruticose plants, often acaulescent. Leaveat 

 unequally pinnate. Spikes pedunculate, axillary or radical. 



§1. Nearly stemless: stipules ad nate to the petioles : leaflets not verti- 

 cillate. — Acaules, DC. 



* Flowers purple or white. 



1. O.horealis (DC): nearly stemless; scape and stipules hispid with 

 bristly hairs; the petioles with few hairs; leaflets elliptical-lanceolate, gla- 

 brous beneath, hairy above; scapes as long as the leaves; flowers capitate j 

 bracts as long as the blackish very hispid calyx. DC. prodr. 2. p. 275; Hook. 

 Ji. Bor.-Am.l. p. 145 ; Hook. 4- .47'??. bot. Beechey, p. 122. 



/?. bracts foliaceous, longer than the flowers ; leaflets narrower. Hook. ^ 

 Am. I. c. 



Kotzebue's Sound, Beechey. — The variety /?. will perhaps prove to be a 

 distinct species. 



2. O. Uralensis (DC.) : stemless, villous, scarcely silky ; leaflets oblong- 

 lanceolate ; scapes longer than the leaves, and (with the calyx) hirsute-wool- 

 ly ; heads many-flowered, ovate, the flowers spreading ; lower bracts longer 

 than the calyx, the others equalling it in length; legumes somewhat distant, 

 erect, ovate, acuminate, 2-ceUed. DC. prodr. 2. p. 279 ; Hook.ji. Bor.-Am. 

 l.p. 145; Nutt.injour. acad. Philad. l.p. 18, excl. syn. Astragalus 

 Uralensis, Linn. 



0. subsuccnlenta (Hook. 1. c.) : leaves nearly glabrous and somewhat 

 fleshy. 



y. minor (Hook. 1. c.) : somewhat glabrous ; flowers few. 



Arctic America and Labrador, Hooker. Head-waters of the Missouri, 

 Nuttall. /i*. Arctic sea-shoie, Dr. Richardson, r. Dry hills and prairies of 

 the Rocky Mountains, Drummond. — A very variable species. Hooker. 



3. O. arcticn (R. Brown) : nearly stemless, silky; leaflets opposite and al- 

 ternate, oval-oblong ; heads few-flowered, the flowers somewhat umbellate ; 



