14 
green rachis scarcely tapering. Leaflets 2-5 pairs, remote, narrowly 
linear, acutish to obtuse, conspicuously reduced above, the terminal 
one phyllodia-like but mostly short-jointed to rachis, and mostly larger 
or longer than the upper ones, 1-2 cm. long. Stems decumbent to 
weakly ascending, very slender and lax, 2-3 ft. long, the slender inter- 
nodes longer than the leaves, several from a fleshy erect root. Whole 
habit of A. junceus and evidently repleces it in the Sierras. Susan- 
with Pinus ponderosa, Quercus, Agropyron and Lotus in black and rich 
soil. Middle Temperate life zone, blooming in June. It has the 
plant green, and pubescence very sparse and scarcely visible, except 
on the calyx where it is minute and soft. Stipules green, rigid, subu- 
late, reflexed, about 4 mm. long above, barely connate below and very 
short. Growing on gravelly lava southern slopes among boulders along 
ville California and vicinity. 
9. Astragalus campestris (Nutt) Gray Proc. Am, Acad. 6 229 
(1864). Homalobus campestris Nutt. in T. & G. Fl. 1 351 (1838). 
Homalobus tenuifolius Nutt. Not A. tenuifolius Desf. This is the 
common form in high mountains on rocky ridges, alpine and subalpine, 
with stems mostly flat on the ground from rather woody roots, short 
leaves and elongated peduncles and rather capitate flowers. Leaflets 
linear and very acute, the terminal one not elongated much, small, in- 
clined to be ashy-pubescent. From the mountains of New Mexico and 
probably the San Francisco peaks of Arizona northward to the 
british line and westward in all the mountains of Utah and probably 
southern Idaho. Apparently not found in Neveda and the Sierras 
but to be expected. This form rarely hag pods a trifle suleate dor- 
sally. For the general character of the species see the var de- 
cumbens. All the varieties freely intergrade according to the shade 
and moisture in which they grow. 
Astragalus campestris var. decumbens (Nutt.) Jones. Homalo- 
bus decumbens Nutt. in T. & G. Fl. 1 352 (1838). A. decumbens 
(Nutt. Gray A. convallarius Greene, Phaca decumbens (Nutt.) Piper. 
Homalobus Salide Rydberg. Pods about straight, about 2-3 cm. 
long, linear to oblanceolate, reflexed. Flowers 5-10 Banner obovate 
to oblong, veined from a darker and ring-like base, about 2 mm. longer 
than keel, about 3 mm. long, arched abruptly at end of calyx to 
about 85 degrees, sides scarcely reflexed except at base and less 
than 1 mm. wide, groove filling the whole banner, 3 mm. wide and 
1 mm. deep, deeper below. Wings short, little longer than keel, 
oblanceolate, arched so as to expose base of keel, 1-1.5 mm. wide, 
concave to keel, twisted so as to be about horizontal at tip. Keel 
with erect part about as long as base and sharply arched to 90 de- 
grees and narrowly-triangular-acute. Calyx tube obcompressed at tip, 
Hedeoma like, campanulate, not deeper cleft above, with rounded sinu- 
ses, teeth slender, little shorter than tube. Peduncles very long and 
. erect as to stems, often 2 dm. long, subterminal. Leaves narrow, 
thin, with 3-7 pairs of flat leaflets linear (often faleate) to narrowly 
oblong but acute at both ends, 2-25 mm. long, 1-9 mm. wide, rather 
. distant, short-petiolulate and the lateral ones jointed to rachis 
- Stipules subulate, united near ground. Stems diffuse when growing 
alone, very slender, rarely 3 dm. long, many, from slender roots which 
branch below ground and spread out in open tufts, often straggling on 
the ground in open places but erect mostly in shade, Leaves very 
variable according to shade. Pubescence attached at the end in the 
type but with a hump near base representing the other end of a pick- 
ed hair, closely appressed and very variable but silvery only in the 
‚ Var. crispatus. The type of this variety has erect stems and linear leaves 
with the terminal one elongated and about as long as the slender 
„petiole and raceme. It has the general habit of A. junceus, and is 
seldom collected. Lima Montana and Rexford, Idaho, Jones. 
. Glenwood Springs, Colorado, Diehl. Type locality in southern Wyoming 
