VOL., 111. ] Contributions to Western Botany. 289 
the type in the purple flowers, keel 4 broader, longer pod, which 
is cartilaginous and so thicker, pulpy pod, while the type has a thin 
and almost transparent pod, without pulp when young. If this 
latter point holds good in all cases, it is a gocd species. It is at 
once distinguishable from the type-everywhere, and never has been 
found: east of the Deep Creek Mountains in the western edge of 
Utah. 
ASTRAGALUS CANADENSIS L. and A. Morton: Nutt. have the 
following characters in common: Flowers in dense spikes, horizontal; 
calyx white, flattened, somewhat gibbous, hairy, tips broadly trian- 
gular and tufted with hairs, short; banner arched in a wide arc, 
sides reflexed, at tip the most, very little elsewhere; sulcus trian- 
gular and acute at tip of banner, rounded at base of banner; banner 
equaling the keel, ochroleucous; wings ascending and narrow, ex- 
posing both the tip and base of keel, obtuse, a line longer than keel. 
ASTRAGALUS CANADENSIS has calyx decidedly notched on the 
upper side; bracts subulate, short; wings linear but slightly wider 
at blunt tip; keel little incurved; leaves in about 13 pairs and in- 
clined to be lanceolate; spikes not denser fruited than in the other 
species. The keels of both species are veined. 
ASTRAGALUS MortToni Nutt. Calyx teeth not unequal; wings 
oblong-lanceolate, 114 lines wide at base; keel purple tipped, arched 
to % of a circle; bracts ovate to lanceolate, 1 to 2 lines long; leaves 
inclined to be oblong and much smaller than in Canadensis; flowers 
in a closer and shorter head. Pods pubescent and densely aggre- 
gated, ascending as in the other species. 
A. Canadensis was just coming into bloom at Grinnell, Iowa, on 
August 16, 1892, at 1,000 feet altitude, while 4. A/ortoni was well in 
bioom at Muncy, Eastern Nevada, on Julv 6, oe at 6,000 feet 
altitude. - 
ASTRAGALUS DODGIANUS, n. sp. Many stemmed from a woody 
oot; stems very slender, flexuous, branching from the base, 6 to 
24 inches long; stipules sheathing at the base, membranous and 
barely pointed, upper ones connate at base and very broadly trian- 
gular; whole plant except the glabrous pods minutely and sparsely 
pubescent; leaves 1 to 2 inches, with proper petiole % an inch; 
rachis leaf-like; leaflets 4 to 5 pairs, narrowly elliptical to linear, 2 
