448 BiCKN'ELL : Studies in Sisvrinchil'm 



very smooth, a slight transverse constriction just below the spathe : 

 spathes erect or slightly deflected, green or faintly dull purplish, 

 the bracts often thin and rather weak-nerved, the outer one mostly 

 straight, the inner one more or less convex in outline ; outer bract 

 surpassing the inner 2-15 mm., mostly 2-3 cm, long, attenuate- 

 acute, hyaline-margined below and united-clasping for 2.5 mm. at 

 base ; inner bract rather broadly hyaline-margined nearly to the 

 apex, sometimes acuminate but usually broad above and abruptly 

 acute or even scanous obtuse ; interior scales rather broad, often 

 nearly equaling the inner bract : flowers 3—6, medium to large, 

 deep violet-blue on erect exscrted pedicels ; perianth lO— 14 mm. 

 long ; stamineal column 4-6 mm. high ; capsules (not fully mature) 

 subglobose, brown, about 4 mm. high, apparently rather few- 

 seeded, and glabrate or nearly so at maturity. 



Idaho and Nevada to Colorado and North Dakota, flowering 

 In June and July. 



Idaho: Arco, June 18, 1893, Dr. Edward Palmer; Pleasant 

 Valley, June 25-30, 1891, G. N. Allen. 



Nevada: Pleasant Valley, May, 1865. 



Utah: Supply Creek, July 29, 1875,9000 ft., L. F. Ward ;^ 

 Salt Lake Valley, July, 1888, J. H. Paul; Bear River Canon, 

 Aug., 1869, S. Watson. 



Colorado: Hot Sulphur Springs, Middle Park, Aug. i, 1881 

 Geo. Engelmann ; Twin Lakes, July 6, 1896, Biltmore Herb. 



Montana: West Gallatin River, June 9, 1883, F. Lamson- 

 Scribner, no. 271, "moist banks''; Helena, June, 1888, F. D. 

 Kelsey. 



Wyoming : F. Tweedy ; Yellowstone National Park, Mrs, 

 Moore, 1894; Mammoth Hot Springs, 6000-700.0 ft, June 4, 

 1894, F. H. Burglehaus; May, 1889,6600 ft., F. W. Dewart ; 

 North Platte, '^vet sandy bottom," July 25, 1858 ; Jackson's Hole 

 on Snake River, June 18, i860, F. V. Hayden, ''gravelly bottoms. 

 6000 ft. ;" Ft Bridger, July, 1873, T. C. Porter. 



A species resembling forms of S, augustifoliuni but evidently 

 distinct, and prob^ibly not distantly related to 6". lialopJiiluni but 

 usually much stouter and taller and with much larger flowers. It 

 differs from 5. angnstifoliiiin mainly in much less elongated outer 

 bract and larger interior scales, more narrowly winged stem, con- 

 stricted below the frequently deflected spathes, larger flowers and 

 apparently smaller fewer-seeded capsiiles. The material at hand, 



