Nelson : New Plants from Wyoming 227 



C. & R., L. Nevadense (Wats.) C. & R. or L. Cons (Wats.) C. & R. 

 but it has nearly the fruit of L. ciraundatum (Wats.) C. & R. 

 Like that species it shows a tendency in the dorsal and intermedi- 

 ate ribs to become narrowly winged and the seed is somewhat con- 

 cave on the face with a central ridge. 



The collections of it are all from Yellowstone Park as follows : 

 5496, Madison Canon, June 25 ; 561 1, Glen Creek, July 1 ; 6720 

 (type), Dunraven Peak, Aug. 27. It occupies open, stony or 

 gravelly ridges at 6000 to 9000 ft. altitude. 



** Dodecatheon philoscia 



Glabrous throughout: scape 1.5-3 dm. high, very slender, 

 mostly 1— 3-flowered though sometimes with more, from a short 

 cormose-rootstock with fibrous roots : leaves few (4-8), elliptic to 

 oblong, mostly obtuse, variable in size (2-7 cm. long), tapering 

 into a short slender petiole : bracts minute, oblong : calyx-lobes 

 lanceolate, 2-3 mm. long, twice as long as the tube : united part 

 of the corolla with a purple wavy line ; lobes deep sky-blue, nar- 

 rowly oblong, 1 5 mm. long, about 3 mm. broad, obtuse : united 

 filaments about 1 mm. long, yellow : anthers broadly subulate, 

 acute, deep-blue on the back, about 5 mm. long ; connective 

 linear-acuminate : capsules on slender erect pedicels (which are 

 2—4 cm. long), subcylindric, about 4 mm. in diameter and 1 cm. 

 long, twice as long as the calyx, splitting only at the summit into 

 five (at length) divergent teeth. 



I am at a loss to know to what species this is most nearly allied. 



On account of the few, broad, thin (almost membranous when dry), 



entire, widely spreading leaves it cannot be compared with D. 



pauciflorum (Durand) Greene 

 separate it. 



It oerhans mav be best a 



from which its short filaments also 



D. Maedia 



eastern states from which its smaller size, slender scape and pedi- 

 cels, slender petioles, few flowers and different capsule separate it. 

 It was secured on gravelly and stony, shaded bars in the river 



Jel 



y Swertia palustris 



Stems simple, erect, glabrous, 2-3 dm. high : leaves glabrous, 

 thin, almost membranous when dry, entire or rarely denticulate : 

 root-leaves oblong to elliptic, usually very obtuse, 5-10 cm. long, 

 on margined petioles somewhat shorter ; stem-leaves several, gen- 



