446 
BOTAOT. 
tube ; corolla purple, 3-4" long ; pod ovate-oblong, 3" long, boary, balf-inclucled in tbe calyx— Upper 
Nebraska to tbe Kocky Mts. 
Series III. An anomalous species, tbe keel very sharply acuminate iu tbe niauuer of Oxytropis, tbe pod 
witb tbe dorsal suture alone iutlexed, as iu Jstrafjalus proper. 
128. A. NOTIIOXYS, Gray. DitFuse from an annual root, cinereous-puberuleut ; stems slender, 3-12' 
long; stipules nearly free, distinct; leaflets 6-9 pairs, ovate-oblong or oblong, 3-6" long, often refuse, 
glabrate above; peduncles 3-G'long; raceme short, spikelike; calyx-teeth subulate, shorter than tbe 
oblong tube ; corolla violet, ^' long, the broad aud short iucurved apex of tbe keel abruptly contracted 
into a short very acute porrected cusp; pod broad-linear, 8-11" long, falcate, puberulent, thin-coriaceous, 
sulcate dorsally aud nearly 2-celled, tbe ventral suture rather prominent. — Arizona. 
Obscure S2>eeies. 
A. DiAi'HAXi s, Dougl. Hoolc. Fl. Bor.-Amcr. 1. 151. Prostrate and diftuse, pilose-scabrous; stipules 
email, ovate, acuminate ; leaflets 5-9 pairs, obovate ; peduncles sborter than the leaves ; flowers in loose 
heads, ]inrple, about 6" long; bracts minute, ovate, acuminate, rather sborter than the pedicels ; pods 
scarcely 1' long, linear, much flattened, falcate, somewhat reflexed, nearly glabrous, 2-celled, many-seeded, 
somewhat diaphaiu)us. — Near tbe Great Falls of tbe Columbia, (Douglas.) 
A. I'OLAins, Bcuth. Trans. Linn. Soc. 23. 323. Glabrous or sparingly pubescent; stems shortly diffuse ; 
stipules connate ; b allets ll-l.'), ovate or oblong, retnse or euiarginate-bifid ; peduncles about eciualing the 
leaf, 1— l-dowei-ed ; calyx-teeth a little sborter than the tube ; corolla about 3 times longer than tbe calyx, 
tbe keel shorter than tlie wings and banner ; pod nearly sessile, erect, broadly linear-obloug, inflated, mem- 
branous, 1' long, 3-1 times exceeding the calyx, black-hairy, rounded at tbe ends, dorsal suture not in- 
truded. — Resembling .1. (tlpinns. Escbscholtz Bay, (Seemann.) 
A. Gnmsii, Kell. 7/y(».s. Oilif. Acad. 2. 161, fig. bO. Canesceutly short-villous ; stems 1-2° long; 
sti])ules slightly adnnte, distinct ; leaflets 8-10 pairs, obcordate, cuneate, petiolulate, i' long, rarely as 
wide, tlie lowest approximate to the stem; peduncles exceeding tbe leaves, 8-10' long; bracts ovate, 
acute, eipialing the jiedieel-; ; flowers 1' long, 15-20 iu a short raceme, spreading, pale-purple; calyx-teetb 
broad, acute, 4 tinu>s shorter than tbe tuhular-campanulate gibbous deusely white-pubescent tube ; keel 
"with a short incurved obtuse apex, shorter than the subvillous banner and wings ; ovary linear-oblong, 
pubescent, stipitate, G-T-ovuled, tbe ventral suture slightly inflexed ; stipe half tbe length of the calyx. — 
Headwaters of the Carson River, California, (Gibbs.) 
PiiACA i)i:r,ii.is, Nntt. T. 4- G., Fl. 1. 245. Somewhat pubescent, or glabrous below ; stems slender, 
sbort, deeunibent ; stipules slightly adnate, acuminate; leaflets 8-11 pairs, about 3" long, ciiueate-oblong, 
sonu'wliat truncale or eniarginate at apex, p)etiolulate, minutely appressed-birsute beneath; petioles 
rather long; peduncles exceeding the leaves; flowers 10-15, iu close heads or sbort spikes, pale-purple, 
about 5" long ; th(( banner deeply eiuarginate ; calyx grayish-pubescent, the subulate teeth abotrt ecLualing 
the tube.— Pod unknown. " Plains of the Rocky Mts., near streams," (Nuttall.) 
I'ii.vcA I'AUx u OLi.v, Nutt. T. ij' G., Fl. 1. 348. Slender, canescent, subcfespitose ; stems very short; 
biwer stipules united, upper oiuvs triangular-ensiform ; petioles long; leaflets 5-8-pairs, very small, 
laiu'colate-liuear, mostly acul e ; rachis flattened and slightly winged ; peduncles slender, exceeding the 
leaves : llowers 5-7, purple, in a sliiut raceme ; calyx-tube short, black-pubescent, a little exceeding tbe 
acute teeth ; ]iod pubescent, sessile, terete and somewhat boat-shaped, acute.— Rocky Mts., toward the 
sources of the Plitte. (Xuttall.) Dr. Gray conjectures that this may be a form of A. orohoicles. 
A. VAe;i\ A 1 I S. Pall. Book. Fl. Eor.-Anur. 1. 149. Erect, pubescent ; leaflets linear-lanceolate, acute ; 
peduncles longer than the leaves; flowers white and purple, in dense spikes, nodding ; pods linear, 
Btraigbt.— Wooded country of subarctic America, (Richardson.) " Referred by Plancbon to Phaca austra- 
— Said to be very similar iu habit to A, ahoriginnm. 
OXYTROPIS. 
(A.) Calyx becoming bladdery in fruit. 
^ 1. CALYCOrilYsa:. Fruiting calyx inflated, globose, including tbe ovate chartaceous-mem- 
branous pod, which is somewhat half-2-celled by tbe intrusion of tbe ventral suture. Matted- 
caespitose, subacaulescent ; scapes 2-flowered. 
1. O. Mrr.TtrM's, Nntt. Canescently-silky, 1-3' high; leaflets 3-4 pairs, about 3" long; flowers 
purple, G" h)ng; pod sliort-stipitate.— Rocky Mts. of Colorado and S. Montana. 
(B.) Calj'x unchanged. 
j> 2. PHYSOCARP.E. Pod inllate.l, nu nibranons, the ventral suture only thickened withiu or in- 
truded. Acauksceut, tbe scape umbellutely or capitately 2-6-flowered. 
