﻿276 Nelson : New Plants from Wyoming 



corolla, petals obovate, about 4 mm. long; stamens 15, anthers 

 small, sub-spherical ; capsule linear-clavate, 10-13 mm. long, 10- 

 12-seeded; seeds in one compact row, smooth, longitudinally 

 groove-angled, in form from frustra of triangular prisms to rhom- 

 boidal cuboids, faces about 1 mm. lonp\ 



Observed but once, possibly local or rare ; Parkman, Sheridan 

 county, Wyoming, July 22, 1896 ,no. 2454. Type specimen in 

 Herb. University of Wyoming. 



Gentiana elegans. 



Ann 



lal, 2-3 dm. high, branched from the base, the 2-20 stems 

 simple or nearly so, each stem or branch terminated by a single 

 flower ; leaves 3-6 pairs on each stem, appearing crowded toward 

 the base in the many-stemmed specimens, mostly obtuse, the lower 

 petioled, obovate to broadly spatulate, the upper sessile, oblong or 

 narrower ; calyx-lobes nearly equal and similar, equalling the tube 

 in length, bearing in the sinus a fringe of short, obscurely glandu- 

 lar hairs : corolla 4-5 cm. long, deep blue with lighter patches or 

 streaks downward, the lobes obovate-oblong, dentate around the 

 summit, fimbriate on the sides : capsule stipitate ; style nearly as 

 long as the capsule proper, the stigma sub-orbicular, dentate. 



This handsome species is common in the higher mountains of 

 Wyoming at altitudes from 9000 to 10000 feet. Specimens of 

 it have been distributed as " Gentiana scrrata near var. holopetala 

 Gray," as' follows : no. 865, Union Pass, Wind River Mountains, 

 August, 1894; nos. 1539, 1725, 1766 from the Medicine Bow 

 Mountains, collections of 1895. 



It differs strikingly from G. serrata Gunner (G. detonsa Rottb.) 

 m its mode of branching, its broader obtuse leaves, in its dentate 

 (not fimbriate) corolla-lobes, in the position of the fringe of hairs 

 in the calyx, which is in the sinus, and not at the base of the lobes, 

 and in its stipitate, styliferous capsule. G. scrrata, moreover, is 

 of the low, wet grounds of northern stations ; G. elegans is met 

 with only, so far as my observation goes, in the mountains at 

 almost fixed altitudes. As the foregoing are essential characters 

 it can hardly be united with the var. holopetala for again the nar- 

 rower leaves, the character of the pistil and other points men- 

 tioned cut it out. G. serrata holopetala seems to be less branched, 

 more slender and belongs to a more western range. 



Type specimen in Herb. University of Wyoming, no. 1539' 

 Cummins, July, 1895. 



