﻿Nelson : New Plants from Wyoming 277 



Gentiana elegans unicaulis. 



Many of the characters of the species but smaller in every way, 

 1-2 dm. high, rarely if ever branched, the simple stems bearing 

 3-5 pairs of mostly obtuse leaves ; the lower leaves small, obovate 

 to oblong, the upper pairs longer and somewhat narrower ; pedun- 

 cles comparatively long ; corolla-lobes obscurely dentate around 

 the summit, mostly entire at the sides. 



This form like the species is of the higher mountains, usually 

 of more alpine stations. It often occurs in large, evenly planted 

 beds, the plants nearly uniform in size. 



Type specimens in Herb. University of Wyoming, no. 4173, 

 Battle Lake, Carbon County, Wyo., Aug. 16, 1897. 



Douglasia biflora. 



Cespitose, the numerous suffrutescent branches crowned with a 

 rosulate cluster of leaves, the dead clusters from previous years per- 

 sisting and marking the gradually lengthening branches, only the 

 current year's growth above the surface of the gradually elevated 

 mound in which the stems are buried ; leaves lanceolate-linear, 

 blunt, 9-12 mm. long, glabrous or nearly so } margins obscurely 

 denticulate, imbricate-clustered ; peduncles pubescent, fascicled, 3-5 

 rising out of the terminal rosette of leaves, 1-3 cm. long; inflores- 

 cence a cyme with only the terminal and one lateral flower devel- 

 oped or sometimes only the terminal one, the terminal blossom 

 almost sessile in the two-bracted involucre, pedicel of the lateral 

 one 1 cm. or more in length ; calyx campanulate, tube scarious, 

 lobes foliaceous, lanceolate, equalling the tube; corolla-tube as 

 long or longer than the calyx, the lobes nearly equalling the tube, 

 obovate, truncate, emarginate or few-toothed ; capsule turbinate- 

 pherical. 



Secured but once, about the summits of the Big Horn moun- 

 tains near Dome Lake, July 18, 1896. Type specimen in Herb. 

 University of Wyoming, no. 2450. 



Phacelia deserta. 



Stem single, erect from a stout perpendicular perennial root, 

 >-2 dm. high, densely leafy at base, sparsely so upward, the whole 

 plant canescent with a short close pubescence, obscurely glandu- 

 lar; leaves petioled, narrowly oblong in outline, pinnate, the pinnae 

 nearly oval and crenately toothed, 5-9 pairs which are nearly equal 

 in size ; stem branched at the summit giving a short dew panicu- 

 late inflorescence of scorpioid cymes ; sepals equal, lanceolate-ob- 



