454 , BicKXELL : Studies in Sisvrinxiiiu.m 



Colorado : Como, 9775 ft. altitude, In meadow, Au<,^ 3, 1895. 

 " Ci-andall & Cowcn," no. 477, Flora of Colorado. U. S. Nat. 

 Herb. ■ 



tifoliuiu, and perhap.s to be referred to an 

 alpine variet}' of that species, but S. angnstifoliuui is also a plant 

 of very high altitudes in Colorado, occurring in a stout and nearly 



typical form which contrasts notably with the slender plant here 

 described, although more slender Rocky Mountain forms of S. 

 angiistifoliniii appear less distinct. An understanding of the true 

 status of the plant must await further material, especially the mature 

 fruit. In any case it is clearly something quite different from the 

 ordinary eastern 5. angitstifoUuni. In respect of the slenderly 

 prolonged inner bract and small pale flowers with non-emarginatc 

 segments the plant shows much similarity to 5". saniicutosum ?,\-\(\ 



meral habit to the much smaller S. alpcstrc. It 

 differs from t\-pical S. augustifoliimi in duller gray-green color, 

 greater slenderness, thicker and more closely striate leaves, nar- 

 rower and more slenderly prolonged bracts which are less strongly 

 nerved and with more hyaline edges, smaller paler flowers with 



unnotched segments, shorter pedicels, more obovoid-oblong cap- 

 sules. 



t> 



S. SARMEXTOSUM Suksdorf; Greene, Erythea 3 : 121. iS95.- 



Tufted or closely massed in growth, r. 5-2.8 cm. high, dull 

 green and glauccsccnt discoloring in drying : roots slender and 

 numerous : leaves rather thin, erect, equaling the stem or shorter, 

 rather weakly nerved, 1-3 mm. wide, attenuate, acute, smooth- 

 edged or sometimes serrulate when young: stem 1-1.5 mm. wide, 

 narrowly wing-mnrgined, the wings not broadened into the base ot 

 the spathe, smooth-edged or obscurely denticulate, erect or some- 

 \\hat outcurved, simple and leafless, or occasionally developing a 

 terminal node bearing a slender elongated leaf or cluster of several 

 leaves subtending an outcurved peduncle : spathes green, erect or 

 bent forward, narrow, 1-2 mm. wide at base, the bracts foliaceous, 

 thin and somewhat membranous, striate, closely parallel, both 

 narrowly prolonged to the rather abruptly acute or obtusish ape?c, 

 the outer one 3-6 cm. long, surpassing the inner one I-2.5 cm., 

 broadened above the middle, the margins narrowly hyaline, united 

 for 3-5 mm. at base; inner bract more than half the length of the 

 outer one, also herbaceously prolonged but narrower and more 

 scarious margined, 2-3.5 cm. long: flowers 1-3, hght blue, small, 



