Slrejjlanlhns. CKUCIKEK.E. 10 



A. microphylla, Nutt. rcrennial: slender stems Heveral from a slender braucliiug 

 caudcx about <i inches high, somewhat hirsute witli spreading iiuirs at base or very nearly 

 glabrate: lower leaves stellate-pubescent; petioles often ciliale, linear to narrowly oblaiiceo- 

 late, an inch long or less; caiiline few, linear-lanceolate to narrowly oblong: flowers jtalo 

 rose : sepals slightly jmbescent or glabrous : p<jds usually very narrow, 1 to 2 inches ^ong bv 

 one half to three fourths line broad, erect or somewliat spreading; valves slightly nerved 

 toward the base ; seeds small, in one row, slightly winged. — Nutt. in Torr. & (iray, Fl. i. H'2. 

 — Uinta Mts., Utah, Watsou ; Yellowstone i'ark, Wyoming, Parry, Canbi/ ; Blue Mts., 

 Oregon, Ctisick, Howell. 



* # * Leaves all entire, not cordate nor auriculato. 



-I— Pods ascending. 

 ++ Glabrous, the petioles only sparingly ciliate, perennial. 



A. Howellii, Watson. Stems low (1 to 4 inches high), from a much branched cespitose 

 canilex : leaves all narrowly oblanceolate, glaucous, indi long or less, acute or obtuse ; the 

 cauline somewhat drooping: flowers pale or l)right pink: pods erect, 1^ inches long bv 2 

 lines broad, acuminate ; the stigma sessile ; valves nearly nerveless; seeds orbicular, broadly 

 winged. — Proc. Am. Acad. xxv. 124. — Ashland Butte, Siskiyou Mts., S. Oregon, 7'. Iluuefl, 

 1887 ; White Mts., Mono Co., Calif., at 11,000 feet alt., Shockley, August, 1888. 

 ++ ++ Villous-hirsute with scattered spreading mostly simple hairs. 



A. Cusickii, Watson. Stems usually several from a biennial root, a span high or less, 

 simple, hirsute or glabrate above : radical leaves linear-oblanceolate, hirsute and ciliate, 

 1 inch long or less; cauline linear to linear-oblong, sessile, not auriculate: flowers rose- 

 colored, 3 to 5 lines long: sepals villous : pods arcuate-ascending, glal)rou.-!, 2 to 3 inches 

 long by 1 i lines broad, obtusisli ; stigma sessile ; valves 1 -nerved below the middle ; seeds 

 orbicular, winged, in 1 row. — Proc. Am. Acad. xvii. 363. — Blue Mts., Oregon, Cusick ; 

 Cascade Mts. of Oregon and Washington, Howell, Drandegee} 

 ++++++ Finely stellate-pubescent. 



A. Parlshii, Watson. Low and ce.spitose (2 to 4 inches high), very finely stellate-pubes- 

 cent throughout, the simple slender stems from a much branched rootstock : radical leaves 

 numerous, linear-oblanceolate, half inch long or less, entire ; the cauline few, linear, sessile : 

 petals rose-color, 3 to 4 lines long, tw ice longer thr^n the purplish sepals : pods glal)rouii, 

 ascending on pedicels 2 to 3 lines long, an iuch long including the filiform style (2 to 3 lines 

 long), a line broad, attenuate above ; valves 1-nerved and veined : seeds somewhat in 2 rows, 

 elliptical, narrowly winged. — Proc. Am. Acad. xxii. 468. — Bear Valley, San Bernardino 

 Mts., Calif., at 6,500 feet alt., S. B. Parish. 



+- -t— Pods pendulous : finely .stellate-pubescent. 

 A. pulchra, Jones. Canescent throughout with a fine stellate pu])escence: stems erect 

 from a branching woody rootstock, a foot high, leafy : leaves not rosulate at base; the lower 

 narrowly oblaijceolate and petiolate, 1 to 2 inches long ; the upper linear-lanceolate, ses.sile : 

 flowers usually large, soon spreading or reflexed: petals 3 to fi lines long, rose-colored, 

 usually twice longer tlian tlie pubescent sepals: pods pendent, finely pubescent, 1| to 2^ 

 inches long by li lines wide on pedicels three fourths line long; stigma sessile; valves 

 1-nerved, veined: seeds small, in 2 rows, orbicular, winged. — Jones in Wats. Proc. Am. 

 Acad. xxii. 468. — Borders of the desert, W, Nevada, Stretch, Shocklei/, Jones; to San 

 Eeniardino aud San Diego Counties, Calif., Vasei/, Parish Bros., W. G. Wright. 



45. STREPTANTHUS, Nutt. (STpcTrroV, twisted, and ar^o?, flower, 

 from the twisting of the petals.) — Caulescent branching often glaucous annuals 

 or biennials of the Pacific Coast and drier interior region to the Lower Missis- 

 sippi ; with entire or toothed (rarely pinnatifid) usually sagittate and clasping 

 leaves and purple to white (rarely yellowish) flowers. — Jour. Acad. Phil;id. v. 

 134; Gray, Gen. 111. i. 14.3, & Proc. Am. Acad. vi. 1Sl>; r>r.u. .^ Wai>. Tiof. 

 Calif, i. 33. [By S. Watson.] 



1 Also in Spokane Co., Washington, &uksdvii . 



