15 
along the overland trail by Nuttall. Middle Temperate life zone in brush 
in dry paces. What Gray mistook for this species and intended 
to be called A. campestris is quite different and is what I had in view 
as A. decumbens var. campestris. A. decumbens (Nutt.) Gray is a 
lower form with longer peduncles, and with terminal leaflet not elon- 
gated and connects with the next. This form blooms from July to 
September. 
Astragalus campestris var. hylophilus (Rydberg). Homalobus 
hylophilus Rydberg Fl. Mont. 247 (1900). H. decurrens Rydberg. A. 
divergens Blankenship. This is what Gray intended as A. campestris. 
and what has been so considered by ail botanists since. Plants grow- 
ing in the shade in moist places mostly at the north. Stems erect 
normally, with short internodes and long leaves and péduncles with 
inflorescence rarely surpassing the leaves much. Leaflets thin, most- 
ly green, barely acute, oval to linear, flat. Stems almost filiform from 
similar and much branched underground branches of the tap root. 
Common in the mountains. at the south from the subalpine down to 
the edge of the Middle Temperate and throughout the woods of the 
Middle Temperate at the north, New Mexico to southern Utah, north- 
ward and northwestward to the Cascades and the far north.. A. stri- 
gosus C. & F., A., griseopubens Sheldon, Homaiobus camporum Ryd- 
berg is an intermediate form with narrower leaves almost silvery- 
pubescent approaching the type of A. campestris var. decumbens: 
Astragalus campestris var. crispatus. Stems densely tufted 
from woody root, with general habit of A. campestris, but inflorescence 
iittle longer than leaves. Pods ashy and leaves silvery with loose 
crisped hairs attached near the middle. Alta Montana in pine woods, 
Middle Temperate life zone. 
Astragalus campestris var. serotinus (Gray Pac. R. R. 12 18, 51 
t. 5 (1860) as species), A. decumbens var. serotinus (Gray) Jones. A. 
strigosus C. & F., griseopubens Sheldon, A. Palliseri Gray. This 
is a straggling elongated form much tufted and with slender root 
branches, elongated racemes and peduncles, the whole often 2 
ft long, with leaflets from broadly linear to almost filiform, spar- 
ingly pubescent, calyx teeth very short and almost deltoid, and keel 
tip about deltoid and not long triangular as in most forms of the. 
species, This is the common form throughout the Columbia drainage 
from near the Continental divide to the Cascades in open woods 
and on prairies. When the calyx teeth are subulate (which is com. 
mon) and the pod slightly stipitate it corresponds well . with A. 
Palliseri Gray. E y ; ‘ 
j 10, Astragalus junceus (Nutt.) Gray Proc. Am. Acad. 6 230 (1864) 
“ Homalobus junceus Nutt, in T. € G. Fl. 1 351 (1838). A. diversifolius 
var. roborum Jones. Pods narrowly linear, acuminate at tip, 3-4 mm. 
wide, when mature cross section almost round from base to tip, gen- 
erally straight, but sometimes falcate a little either dorsally or ven- 
trally, 3-4.5 cm. long. Inverted on a slender and twisted pedicel. . 
Leaflets all filiform or. only rarely some lower ones flat, the upper 
ones mostly absent and rachis not larger toward tip. Seeds as wide 
as cavity. Stems mostly few together often solitary. Flowers broad 
and stubby not 1 cm. long, arched into a half circle. Banner broadly 
oblong-obovate or wider, arched at calyx tips to 110-125, degrees in 
sharp arc, the whole upper part is the groove which is a half circle 
and 5 mm. wide and 1.5 mm. deep and with an accessory groove down 
the middle, at a point about 2 mm. below tip of banner the groove 
narrows abruptly to about 1.5 mm. wide. At the base of the groove 
there is a narrowly triangular white spot with narrow end up and 
from the sides of this radiate out deep-purple veins darkest below. The 
erect part of banner is about 5 mm. high, with sides reflexed a trifle 
only at a point about 2 mm. below keel tip. Wings very obliquely er ee 
