144 LEGTJMINOSiE. 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 I.e. Sparingly pubescent ; the numerous stems 

 6-18 inches long, from a thick perennial root: leaflets iO-15 pairs, oblong, 

 retuse, cuneate at base, glabrous above, apprised pubescent beneath, 

 6-8 lines long : peduncles about equalling the leaves: flowers reflexed, in 



a short raceme; calyx campanulate, dark-pubescent o lines 1< >ujjt, the 

 teeth nearly equalling the tube: corolla yellowish, the narrow erect ban- 

 ner ii-7 lines long. Pod white-pubescent, on a stipe as long as the calyx. 

 oblong-ovate subsuicate 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. Surv. 9, 174. A. Hender- 

 noni 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, 

 tin- 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 Cii.F/ronoNTEs Gray 1. c. 194. Pods ovate, small, sessile. 

 coriaceous, turgid or at times subcompressed, more or less sulcate 

 <>i) the back. 2-celled by the intrusion of the dorsal suture, cells 

 •>- l-ovulod. Many-stemmed perennials. 



A. Spaldingii Grayl. c. 524. Yillous-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-:5 lines 

 long, villous scarcely sulcate, 2-4-seeded. Plains of eastern Washington 

 and Idaho. 



A. Lyallii Gray be. 15)5. White-silky: stems a foot high, leaflets 

 L9-25, 3-6 lines long, lanceolate to oblong-linear: peduncles not exceeding 

 the leaves; s] tikes long and loose ; calyx villous, the tube equalling the 

 teeth : pods hoary, sulcate. Valley of the Yakima. Wash., near the Brit. 

 ( Jolumbia boundary. 



£ •■'». Dliginosi Gray 1. c. 196. Pod coriaceous, turgid, ob- 

 long, terete, scarcely sulcate and only on the back, nearly 

 straight, sessile, septum perfect. Tall perennials with appressed 

 gray-pubescence or glabrate. 



A. Wo r to n1 Nutt. Joum. Acad. Philad. vii, 19. Minutely appressed- 

 pubescent, greenish : stems erect 1S-24 inches high.: stipules broad and 

 membranaceous; leaflets 1 1-17, oblong, obtuse. 6-12 lines long : peduncles 

 as long as the leaves; HoWers 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 (> hues 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. 



.^ I. Onobrychides Gray 1. c. 196. Pods coriaceous, oblong 



