30 SYNOPSIS OF THE FLORA OF COLORADO. 
spatulate-lanceolate, acute, frequently involute, crowding the rime 3 
of the usually short (3) branches ; scapes scarcely exceeding the 
nner a wi 
han the 
tube; legume 4” long, half included in the calyx, oblong, acute, sub- — 
compressed, glabrous, thick and coriaceous, 1-celled, the ventral suture — 
straight and very acute, the dorsal giibenss about 12 -ovuled.—“ Found — 
by Nuttall near the sources of the yan x 
ASTRAGALUS KENTROPHYTA a a 231. Perennial, 
intricately branched from a long aie breeds pmol aei _cwespitose, 
hoary with a short, silky natant Se stems 2/—4/ —4’ long; stipules mem- — 
_branous, mostly connate, “often setaceously or spinosely acuminate ; leaf- — 
lets 2-3 pairs, 2-4” long, linear- ae ene usually rigid and divaricate, — 
pungent, not jointed with the rachis ; flowers 1-3, on short pedicels in the — 
axils of the leaves, 2” long, ochroleucous or ne aa ith violet ; calyx-teeth 
setaceous, equaling the campanulate sen. pods 2-3” Jon g, sub-cha rta- 
ceous, compressed, jee , pubescent, ovate, acuminate, somewhat in- 
curved, 1-celled, 5-4-0 ruled, 1-2- dag, eo valves separating at matur- — 
ity. —Hall Sy HCN 106; Canby; B. H. Smith, South Park, Porter; — 
Brandegee. i 
ASTRAGALUS TRIDACTYLICUS, Gr. Proc. Am. Acad., v. 6, p. 527. P: : 
rennial, eespitose from a short woody caudex, dwarf, 2/3’ high, silvery- _ 
: : F 
, “pe 
crowded flower ; leaflets oblanceolate, 6” long, a cute; flowers 5” long, | 
pale purple ; tie canerk equaling the’ tube; pod globose, ovoid, 3-4" — 
long, very turgid, fp sac 12-ovuled, 3-4-seeded ; calyx deciduous, 2 
exposing the pod.—St. Vra in Caiion, May 26, Coulter. ‘ 
ASTRAGALUS SERICOLEUCUS, Gr.. Rev. l. ¢., p. 232. Very broadly — 
exspitose, silky-hoary ; stems branchefl, prostra rate; branches covered — 
with the villous st tipules; leaves all 3- foliolate, not eq ualing the 2-6-flow- 
ered, filiform peduncles; leaflets 3’ long, oblanceolate or cuneate-oblong; 
ea lyx- teeth veh e equaling the campanula ate tube; corolla purple, sil < 
long; pod ovate-oblong, 3” long, hoary, half included in the calyx. — 
ees hills oe the Platte, Hall & Harbour 
OPIS MULTICEPS, Nutt. Ca aneseenty sik, Pitas ; stems 
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Hi batch czespitose, from a branching, ea pai val, 3” 
ong; flowers purple, 6” long; fruitin cals inflated, globose, | qnchiding “ 
the ovate, chartaceous-membrano se : short-stipitate, sometimes _ 
half 2-celled by the intrusion of fis pea suture.—‘ Subalpine and 
lower.” Hall & Harbour, 144; Parry, 191. Boulder Cation, Coulter. 
OxyYTROPIS URALEN NSIS 8, ee PUMILA, Ledeb. Acaulescent, silky- _ 
+mtons} ; leaflets 4-5 apie ee 3” long , oblong- trpenata revolute} a 
stipules long-adnate; scapes 1/-2’ long, 2-5-Hlow ered; flow violet-_ 
blue; pod oval-oblong or long- sbionih ventral erecta ‘extending tothe 
dorsal suture. —High alpine. (0. arctica, R. Br.,) Hall & Harbour, 143. 
Mount Lincoln at 14, 000. feet elevation, Coulter. BS 
OxyTROPIS hme L.—Parry. ay 
- OXyYTROPIS LAMBERTI, Parsh.—Very abundant on the plains and in | 
the mountains. Hall & Harbour, 140; Dr. Sm ith ; B. H. Smith ; Canby 
Meehan ; Porter ; Brandegee ; Coulter. 
OXYTROPIS NANA, Nutt. Gr. Prog: Am. Acad. 6, p. 236. Cee 
much iether silky-canescent with a very close, appressed pubescence 
leaves very crowded ; leaflets 3-4 pairs, obovate, 3” long; scapes 5 23 
' high, spall: i aemdine the leaves, 3-12-flowered ; flowers ¢ wpa 
oe 
* 
