144 LEGUMINOS &. ASTRAGALUS. 
pods falcate, somewhat reflexed, linear, compressed, somewhat diaphanous; 
nearly glabrous, 2-celled, many-seeded. Sandy soil, near the Great Falls 
of the Oregon (Douglas). 
A. accidens Watson |. c. Sparingly pubescent; the numerous stems 
6-18 inches long, from a thick perennial root: leaflets 10-15 pairs, oblong, 
retuse, cuneate at base, glabrous above, appressed pubescent henpaliel 
6-8 lines long: peduncles about equalling the leaves: flowers reflexed, in 
a short raceme; calyx campanulate, dark-pubescent. 3 lines long, the 
teeth nearly equalling the tube: corolla yellowish, the narrow erect ban- 
ner 6-7 lines long. Pod white-pubescent, on a stipe as long as the calyx, 
oblong-ovate. subsuleate on the back, the ventral suture somewhat promi- 
nent, straight, reflexed, 4-5 lines long. On open hillsides, southwestern 
Oregon, 
A. Pacificus Sheld. Bull. Minn. Nat. Hist. Sury. 9, 174. A. Hender- 
sont Watson, not Baker. Thinly pubescent throughout with soft woolly 
hairs, the numerous stems erect or ascending from a stout perennial root- 
stock, 1-2 feet high: ‘leaflets’ 6-10 pairs, narrowly oblong,” obtuse ~ or - 
retuse, 6-9 lines long; stipules lanceolate: pedunculate racemes exceeding 
the leaves, few-flowered: calyx tubular-campanulate, dark-villous, 3-4 
lines long, the narrow teeth nearly equalling the tube: pods reflexed, 2- 
celled, very fleshy-coriaceous, upon a stipe twice longer than the calyx, 
turgid, oblong to oblong-obovate, with a stout prominent ventral suture, 
the dorsal less prominent, very abruptly mucronate, glabrous, rugose, 
8-11 lines long by 4 thick. Open hillsides, Jackson Co., Oregon and ad- 
jacent California. 
§ 2 Cuaropontes Gray |. ¢. 194. Pods ovate, small, sessile, 
coriaceous, turgid or at times subcompressed, more or less sulcate 
on the back, 2-celled by the intrusion of the dorsal suture, cells 
3-4-ovuled. Many-stemmed perennials. 
A. Spaldingii Gray 1. c. 524. Villous-pubescent: stems a foot in height: 
leaflets 21-25, lanceolate to oblong-linear, 3-6 lines long: peduncles ex- 
ceeding the leaves: spikes oblong, dense, or rather loose at base; flowers 
nearly 5 lines long: bracts setaceous; calyx very villous; pods 2-3 lines 
wer at Met scarcely sulcate; 2-4-seeded. Plains of eastern Washington 
and Idaho. 
A. Lyallii Gray 1. c. 195. White-silky: stems a foot high, leaflets 
19-25, 3-6 lines long, lanceolate to oblong-linear: peduncles not exceeding 
the leaves; spikes long and loose; calyx villous, the tube equalling the 
teeth: pods hoary, suleate. Valley of the Yakima, Wash., near the Brit. 
Columbia boundary. 
$ 3. Unreinost Gray 1. c. 196. Pod coriaceous, turgid, ob- 
long, terete, scarcely suleate and only on the back, nearly 
straight, sessile, septum perfect. ‘Tall perennials with appressed 
gray-pubescence or glabrate. | 
A. Mortoni Nutt. Journ. Acad. Philad. vii, 19. Minutely appressed- 
pubescent, greenish: stems erect 18-24 inches high: stipules broad and 
membranaceous; leaflets 11-17, oblong, obtuse, 6-12 lines long: peduncles 
as long as the leaves; flowers sessile or nearly so, In dense racemose 
spikes, reflexed as they open the fruit erect ; calyx villous, its teeth triang- 
ular-lanceolate, shorter than the tube: pods 6 lines long, minutely pubes- 
cent, elongated-oblong, grooved at the dorsal suture the ventral suture 
externally prominent: seeds numerous. Dry plains, eastern Oregon and 
Washington to Montana, Utah and Nevada. 
§ 4. Oxosrycutprs Gray }. e. 196. Pods coriaceous, oblong 
