f4 
tipped, Calyx conic, with tube about 3 mm. long and as long as the 
triangular and curved teeth. Bracts often as long as calyx. Primary 
leaves sometimes with 5 leaflets, the rest with three, early petioles 
very short and later ones elongated. Pubescence attached near the 
middle, fine and wavy. In the type the calyx is not deciduous. It 
closely resembles A. Alberti Bunge. Frequent on the plains of northern 
Colorado and adjacent Nebraska and Wyoming. Middle Temperate life 
zone, in dry places. Blooming in May. 
Astragalus sericoleucus var. aretioides Jones Cont. 8 13 (1898). 
Orophaca Rydberg. This is a very condensed form with flowers barely 
exserted from the stipules and with stems reduced to crowns, the 
leaves very short and with almost no petiole. Leaflets usually acute. 
On gravelly hills of the Laramie Plains, Wyoming. : 
Astragalus sericoleucus var. tridactylicus (Gray) Jones Cont. 
10 69 (1902). A. tridactylicus Gray Proc, Am. Acad. 6 527 (1865. 
Orophaca Rydberg. Tragacantha Kuntze. Phaca digitata Nutt, An 
unpublished name. Pods globose-ovate, nearly smooth to puberulent, 
3-4 seeded. Flowers mostly included in the stipules, from 1 cm. long 
to balf as long and very variable. Calyx soon falling from the pod. 
Leaves usually long-petioled.  Leaflets rather narrow and often 1.5 
cm. long. Stems reduced to crowns. With the type but less com- 
mon. The extreme form seem very distinct, but it intergrades. 
22. Astragalus tegetarioides Jones Cont. 10 66 (1902). Pods 
about twice the calyx, about 3 mm high and 1-2 mm. wide, abruptly 
apiculate at both ends, splitting the calyx, chartaceous, coarsely reti- 
culated, translucent, laterally flattened but bulged at the single seed, 
ashy, rather ascending, sutures obscure and nerve-like, sides rather 
“concave, cross section ovate, or when bisulcate dorsally appearing 4- 
angled, both sutures convex but the ventral the more so, Flowers 
about 5 mm long, horizontal. About half a dozen in a head which be- 
comes a short raceme in fruit, 5 mm. long. Banner purple-striped, about 
3 mm long, oval, abruptly erect at end of teeth, with sides much re- 
flexed. Wings broadly obovate, very oblique, wider than keel and 
1 mm. longer, 1 mm. shorter than banner. Keel barely surpassing 
the calyx, rounded from base to a half circle, obtuse, about 1 mm. high. 
Calyx turbinate-campanulate, the tube about 1 mm. long, narrowed and 
unequally inserted at base on a filiform pedicel which is at least 
as long as calyx tube, not oblique above. Teeth subulate, lax, nearly 
2 mm. long. Bracts lanceolate, shorter than the pedicels. Pedincles 
filiform, about 2 cm. Iong. Leaves 2.5-4 em long, with the filiforn 
petiole over half the whole. Leaflets thick, folded, nearly contiguous, 
about 4 pairs, 4-5 mm. long, obcordate to oval-obcordate, with cuneate 
and lons-petiolnlate base, truncate, to notched. Stipules nearly deltoid, 
with subulate tips, green at first, 3-5 mm. long. Stems much branched : 
forming dense mats, about 1 mm. thick, flexuous, with internodes about 
1 em. long. Whole plant silvery with wavy hairs. On the southern 
Blue Mts. Oregon in the Buck Range, in sandy soil, No. 2619 Cusick, 
blooming in June. This has the habit cf tegetarius and lentiformis. 
But for the 1 celled pod it would go with lentiformis. 
23. Astragalus quinqueflorus Watson Proc. Am. Acad. 21 450 
(1886). Pods about 4 mm, high and 2-3 mm wide. ashy, half-oval, very 
obtuse and apiculate. coarsely 5-7 ribbed, with thick sutures, rarely 
a little sulcate dorsally in the middle, laterally flattened, with cross sec 
tion ovate or a little cordate, pendent, splitting the calyx, several seeded 
Flowers white, about 3 mm. long, rarely 5 in a loose raceme. Banner 
round, abruptly arched to erect at end of tube, about 2 mm. long, sides 
a little reflexed. Wings oblanceolate, arched, about 1 mm longer than 
_ keel and as much shorter than banner. Kee] about 1 mm long the base 
a little arched and end abruptly rounded to about 110 degrees and then 
