294 Contributions to Western Botany. = 20k 
late, rounded, obtuse, oblique, ascending, concave to keel, nearly 
horizontal and connivent over the keel, forming an arch over it, 2 
lines wide and ¥% a line longer than keel, purple; keel all purple. 
One form has banner 5 lines long, short; calyx 3 lines long, and 
teeth 114 lines long; pods hoary, and whole plant densely silky. 
Another form has fleshy pods, less hairy; calyx 4 lines and teeth 1_ 
line long; keel rounded, '% narrower than the above; flowers 8 lines 
long. This plant is instantly recognized by the arched and conni- 
vent wings and stippled white spot. 
AsTRAGALUS CHAM &LEUCE Gray. (Distributed by me as > 
glareosus, but not in my sets.) Flowers 1 inch long, pink purple, 
few; banner in flower oblong-oval, sides reflexed 45°, plain, dark 
pink-purple with darker veins, tip with a central notch 34 line deep, 
and with two shallow ones adjoining, seldom absent; white spot 
comes within a line of the edge all around and as low as the keel, 
narrower below, obovate-cordate, edge ragged, with red-purple 
veins; below and a line apart are two patches of anastomosing red- 
purple veins; wings narrowly oblong, dark purple at tip, oblique, 
rounded, tip twisted just below tip of keel, and horizontal; keel 
narrow 2 lines below tip, blunt and rounded, dark purple at tip; 
pod very fleshy, cartilaginous, and sparsely short hairy. It always 
grows in firm, damp meadows, in mountain parks, or high valleys. 
It blooms in June and July. It is a matted, woody-rooted, pros- 
trate, densely branched, silvery plant, with short peduncles among 
the leaves. 
ASTRAGALUS IODANTHUS Watson. This is the most variable 
plant of the genus in Utah, and may include several species recently 
_ erected. The sides of the banner are reflexed, so that the outline 
is oblong, notched; white spot, deep purple veined; banner deep 
purple below, and shading to white at tip, or purple throughout, 
slightly sulcate, ascending 30°, sides most reflexed at base; wings 
Jong, dark purple at base, and white from tip of keel to apex, 3 
lines longer than keel, rounded, obscurely erose or notched, as- 
cending near the tip. The pod is fleshy, black hairy or nearly 
glabrous, plain or spotted, straight or arched into a semicircle, 
round or obcompressed, sulcate or not. It grows everywhere ex- 
cept on alkaline flats in the valleys, but does not go beyond the 
higher foothills of the mountains. 
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