187 
somewhat ascending, connivent at tip, much longer than keel. keel 
about 1 mm. longer than calyx, with straight or slightly arched base, 
and tip abruptly rounded to more than erect so that the deltoid acute 
apex does not seem at the end, it is also a little darker. Calyx,in the 
type, about black with dense and appressed hairs, rather gibbous, and 
ihe tube rather long-campanulate, about 3 mm. long, deeper and broad- 
ly cleft above, the triangular teeth half as long as tube or a little more, 
the lower the longer. Fruiting pedicels 2-5 mm. long, nearly equaled 
by the subulate bracts. Peduncles 1-2dm. long, rather stout, with the 
floral rachis rarely 1 dm. long, but often 2 dm. long in fruit. Leaflets 
broadly to narrowly elliptical, obtuse to retuse, 8-12 pairs, 2 cm. long 
or less, loosely strigose-pubescent with spreading fine hairs. Lower 
stipules connate, reflexed above. Stems ascending to erect, very sul- 
cate, about 2 ft. high, rather coarse. Plants growing in gravelly mead- 
ows in the forests. Middle Temperate life zone, from southern New 
Mexico southward throughout Mexico and westward to the Sierra 
Madres. 
Astragalus strigulosus var. gracilis Hemsley Bot. Cent. Am. 1 266 
(1880). This is a less pubescent form with rather few oblong pods 
and with racemes rarely over 5 cm.long, and shorter peduncles and 
slender stems. This is the more common form northward. ' 
Astragalus strigulosus var. brevidentatus Hemsley 1. c. A. Rusbyi 
Greene. This is an almost smooth form with linear pods about 3 cm. 
long, uncolored and smooth, with loosely racemose flowers about 5 
mm. long. Calyx teeth deltoid and a third to afourth the ashy tube. 
Leaflets oval to narrowly elliptical, rarely 1 cm. long. Frequent in 
the San Francisco forest of northern Arizona and eastward to the Sac- 
ramento mountains of New Mexico, southward to central Mexico. It 
it seems quite distinct but intergrades freely with the other forms. 
144 Astragalus Brandegei Porter Fl. Col. 24 (1874). Pods papery, 
rounded at tip, appressed-hoary to puberulent, reflexed but appearing 
ascending when the peduncles are prostrate, very few and widely scat- 
tered, 1-1.5 cm. long, 4-7 mm. wide, about 3mm. high, very shallow- 
sulcate, narrowed below, filled with the few large seeds, with uneven 
sides due to the bulging sutures, neither suture prominent but the dor- 
sal straight and pod flat on that side, the ventral suture arched, cross- 
section a flattened oval, septum not quite complete toward the tip. 
Flowers white. Banner arched abruptly at end of calyx teeth to 90- 
100 degrees, oval, 1 mm. longer than keel, 4 mm, long, about 3 mm, 
wide, deeply notched, the groove forming a very broad arc of a circle 
and with a fine cleft along the middle, sides reflexed for about one 
half mm. wide on the margins so that the banner is almost taken_up 
by the groove which is 2 mm. wide and goes to the base of blade. The 
wings oblong-oblanceolate, broad. arched to 60 degrees, a trifle longer 
than keel and concave to it, the left hand one flaring and the other one 
folded over the keel’s end. Keel very short, straight, with tip sharply 
incurved to 135 degrees, barely surpassing calyx, 2 mm. high, with the 
purple tip erect and produced but barely acute. Calyx tube turbinate, 
hairy, a little shorter than the subulate and spreading teeth, not over 
2 mm. long, Pedicels slender, 4-7 mm. long. Bracts minute and 
ovate.. Peduncles erect, flexuous, much longer than the leaves, 1-2 
dm. long, filiform and weak. Leaves 5-7 cm, long, very lax and with 
distant leaflets which are linear but appear filiform (because they are 
folded), about 5 pairs, involute, smooth above, 1-2 cm. long. Stipules _ 
adnate, apparently free, green, large for the plant. Stems densely caes- 
 pitose and much branched at very base, prostrate, almost filiform, 
many, straggling outward a foot or two, flexuous, from slender, erect | 
