. Report of the geological exploration of the fortieth parallel . ith an appressed hairypubescence, or usually nearly glabrous with scattered hairs upon the petiolesand margins of the leaves; stems decumbent, G-10 long ; stipules ovate-lanceolate, free or somewhat adnate to the petiole; leaflets 6-10 pairs,2-5 long, obovate or orbicular, obtuse; peduncles equaling the leaves;spikes short, dense ; flowers on short pedicels, deep violet-purple or ochro-leucous tinged with purple, the wings and banner (6-8 long) exceeding theobtuse keel, the somewhat nigrescent campanulate calyx-tube twice longer
. Report of the geological exploration of the fortieth parallel . ith an appressed hairypubescence, or usually nearly glabrous with scattered hairs upon the petiolesand margins of the leaves; stems decumbent, G-10 long ; stipules ovate-lanceolate, free or somewhat adnate to the petiole; leaflets 6-10 pairs,2-5 long, obovate or orbicular, obtuse; peduncles equaling the leaves;spikes short, dense ; flowers on short pedicels, deep violet-purple or ochro-leucous tinged with purple, the wings and banner (6-8 long) exceeding theobtuse keel, the somewhat nigrescent campanulate calyx-tube twice longerthan the subulate teeth ; legume U long, 3 broad, linear-oblong, acuminate,strongly arcuate or hamate, sessile, nearly glabrous with a very sparse pubes-cence, mottled, chartaceous, irregularly folded but usually with a deep dorsalsulcus approximating the suture to the prominent ventral one, dorsal septumnone, many-seeded.—Collected by Dr. Bloomer and Dr. Torrey near VirginiaCity, and not rare on the foot-hills of Western Nevada from the Virginia to the PLATE. ; PTEF i-9 AS CATALOGUE. 71 West Humboldt Mountains ; 4,500-6,000 feet altitude ; April -June. Closelyrelated to both A. Parryi and A. Beckwithii. (269.) An interesting form occurs with the legumes more coriaceous, lessarcuate, not mottled, and irregular in the intrusion of the dorsal suture,becoming at times essentially the same as the legume of A. BeckwithiiThe variation is so great as to show that too much reliance must not beplaced on the form of the legume in determining the species of this Salt Lake City and on Antelope Island, Utah ; May, June. (270.) Astragalus Beckwithii, T. & Gr. Grays Rev., I. c, 221. Perennial,glabrous or nearly so ; stems 1-2° long, diffusely spreading; stipules ovate-lanceolate, adnate to the petioles; leaflets 6-12 pairs, 6 long, broadly oval ;flowers (5-8) in a short loose raceme, ochroleucous, 9 long; calyx-teethsubulate, scarcely shorter than or exceeding the nearly glabr
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