294 LEGUMINOSAE (PEA FAMILY) 



tip barely projecting out of the undivided lightly villous calyx. — Mountains 

 of Wyoming and Montana. 



6. AragaUus Blaukinshipii A. Nels. 1. c. 58. Tufted on the crown of a 

 woody taproot, silky-sericeous: leaves lax, half as long as the 1-2 dm. high 

 scapes; leaflets 11-17, Mnear-oblong, acute at both ends, 12^-16 mm. long: 

 spike dense, 8-12-flowered: calyx loosely lanate-hirsute, inflated in fruit and 

 becoming subglobose: "corolla purple, 20 mm. long; the standard deeply 2- 

 lobed: pod elliptic, acuminate, at length slightly protruded from the calyx. 

 {A. Besseyi Uydh. Mem. N. Y. Bot. Gard. 1: 250. 1900.)— Northern Wyo- 

 ming, Montana, and Idaho. , 



7. AragaUus podocarpus (Gray) A. Nels. Very low, depressed, tufted 

 plants, villous or in age glabrate: leaflets 11-23, linear-laneeolate, 5-8 nun. 

 long: peduncles 2-flowered, scarcely surpassing the leaves, somewhat deflexed 

 in fruit: flowers violet, 10-15 mm. long: pod large, 15-25 mm. long, bladdery, 

 inflated, broadly ovate, 1-celled, neither suture at all inflexed, puberulent- 

 short-stipitatfe. {A. inflatus A. Nels. 1. c. 59.) — Alpine and subalpine; Colo- 

 rado and far northward. 



8. AragaUus Parryi (Gray), Greene, 1. c. Silky-canescent; leaves and 

 scapes 10-15 cm. high: leaflets 13-21, oblong-lanceolate, 4-6 mm. long: ca- 

 lyx short, cinereous-jjubesceiit: pod nearly 12 mm. long, terete with a strong 

 ventral groove, grayish-pubescent, not at all stipitate, oblong or narrower, 

 coriaceous, nearly or quite 2-celled. — Mountains of Colorado near the limit 



9. AragaUus viscidulus Rydb. Mem. N. Y. Bot. Gard. 1: 2^^. 19Qp. 

 Tufted, the caudex clothed with old petioles and stipules: leaflpt^' 17-3i, 

 somewhat villous-pubeso^nt: scape much exceeding the leaves, 10-15. cm. 

 high, subviscid and somewhat black-hairy: petals yellowish at bage, bluisli- 

 purple above: pod membranous, oblong-ovate, beaked, black-pubescent or 

 in age glabrate, ventral suture half dividing it, 10-15 mm. long. — Montana to 

 Utah and probably in Wyoming. 



10. AragaUus viscidus (Nutt.) Greene, 1. c. More or less glandu(a,r-viscid, 

 at least the calyx and commonly the pod: leaflets numerous and smaU,, 5-10 

 mm. long, thickish, oval or oblong, often pubescent when young, at maturity 

 green and glabrate: flowers in a dense oblong head or at length in a short 

 spike, about 10 mm. long: calyx villous and with sessile glands usually evi- 

 dent: pod small, 7-10 mm. loiig, puberulent, oblong, thin-chartaceous, half 

 2-celled, the smaU beak or point straight.— In the mountains from British 

 America to Colorado; common in Wyoming. i 



11. AragaUus gracilis A. Nels. 1. c. 60. Tufted; scapes few-several',' 2-5 

 dm. high, slender, erect, lightly pubescent: leaves about half as long as the 

 fruiting scape;, leaflets 21-31, sparsely soft-pubescent: spike long, open in 

 fruit; the bracts conspicuous, often exceeding the short-cylindric calyx; 

 corolla ochroleucous or more deeply yellow, about 15 mm. long: pod pubescent, 

 oblong-ovate, about 20 mm. long, semimembr'anous, soon spUtting the calyx, 

 nearly 2-ceUed.— -Northern Colorado to Dakota and Manitoba. 



■ 12. AragaUus dispar A. Nels. 1. c. 61. Leaves and scapes rather' few, 

 crowded on the crown of a strong taproot; the persistent membranous stipules 

 white strigose-pubescent: scapes rather stout, hdticeably tapering, silky- 

 pubescent, usually unequal: leaves silky-pubescent, unequal; the primary 

 short, with orbicular to oblong leaflets 5 mm. or less in length; those of the 

 longer leaves oblong to linear and 7-12 mm. long: spikes dense, many-flowered; 

 the bracts from very short to longer than the calyx: calyx short-tubular, 

 silky-lanate, its teeth short: corolla ochroleucous with a purple spot pii. the 

 keel (or more rarely purple throughout), 15-18 mm. long: pod oblong, beaked 

 with a thick point, pubescent, nearly twice as long as the calyx. — Northern 

 Wyoming, and from the Dakotas to Oregon. 



13. AragaUus monticola (Gray) Greene, 1. c. Npt glandular-viscid, loosely 

 silky-villoUs, at least the scapes and calyx, 1-2 dm. high: leaflets somewhat 

 glabrate; oblong or lanceolate, 7-15 mm. long: spike oblong or cylindraceous, 

 dense even in fruit; flower hardly 12 mm. long: pod ovate-oblong, between 



