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RYDBERG: Rocky MOounrAIN FLORA 421 
leaves 5-8 mm. long ; stipules scarious, lanceolate, I—3 mm. long, 
more or less united ; leaflets 5-9, linear-lanceolate, conduplicate, 
pungent, 3-4 mm. long, finely strigose ; flowers usually solitary, 
subsessile ; calyx strigose; tube 1-1.5 mm. long, campanulate ; 
teeth subulate, scarcely 1 mm. long ; corolla ochroleucous, about 
3 mm. long; keel tipped with purple; pod ovoid, rather turgid, 
acute, 3 mm. long. 
This is related to K. tegetaria (S: Wats) Rydb. [Astragalus 
tegetartus S. Wats.] and K. Wolfii Rydb. From the former it 
differs in the subsessile flowers and the shorter calyx-lobes; XK. 
tegetaria has 1-3-flowered racemes, exceeding the leaves in length 
and calyx-lobes which are longer than the tube. From K. 
Wolfi, it differs in the appressed pubescence, the smaller flowers 
and the shorter legume. It is an alpine species growing at an al- 
titude of 2800-3100 m. 
YELLOWSTONE NaTIONAL ParK: August 1884, Zweedy 83 
(herb. Columbia Univ.). 
Aragallus patens sp. nov. 
Acaulescent perennial ; leaves spreading or ascending, 5—10 
cm. long; leaflets g—17, elliptic or oblong, acutish at both ends, 1-2 
cm. long, 4-6 mm. wide, somewhat silvery with closely appressed 
hairs; scape 1-1.5 dm. high, strigose with short silky hairs ; 
raceme short, 3-7 cm. long; bracts linear-lanceolate to lanceo- 
late, 5-8 mm. long ; flowers usually spreading ; calyx sparingly 
appressed-silky with short hairs, often somewhat tinged with pur- 
ple above, 5-6 mm. long, 3 mm. wide ; teeth subulate, the upper 
2 mm., the lower 3 mm. long ; corolla dark bluish-purple, about 
15 mm. long ; banner narrow ; wings broad, slightly emarginate, 
the upper lobes narrow and acutish ; keel with a very dark purple 
spot, and a short, porrect tip ; legume ascending-spreading, thin- 
coriaceous, nearly straight, less than 2 cm. long, 4 mm. thick, 
long-acuminate, minutely strigose, half 2-celled. 
This is related to A. Lambertii and A. sericeus. From the 
former it differs in the shorter and broader leaflets and the more 
spreading leaves ; from the latter in being greener, less hairy, and 
having narrower bracts and calyx-tube and darker flowers, and 
from both in the smaller size, thinner and more spreading legumes 
and smaller flowers. 
CoLorapo: Plains and foothills near Boulder, 1902, /. Tzveedy 
5164 (type); between Sunshine and Ward, wo. 5765; Eldora to 
