MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. I9 



mudd}' margins of ponds near Devil's Lake, N. D., but had not been 

 found since until rediscovered by Williams in Montana. It has gen- 

 erally been referred to ^1, Plaiifagv, but I think it is a disdnct 

 species. The leaves are lanceolate, tapering at both ends, about 5- 

 ribbed. The lower portion of the petiole is much dilated and more 

 or less scarious-margined. The scape is very short and the inflo- 

 rescence scarcely exceeds the leaves. The bracts are broadly lan- 

 ceolate and more or less scarious. 



Montana: Great Falls, 1890, R. S. Jl7///(n//s, 6j^. 



Sagittaria latifolia Willd. Sp. PI. 4: 409 [J. G. Smith, Mon. in 

 Ann. Rep. Mo. Bot. Gard. 6 : 32] ; Sagiftar/a variabilis Engelm. 

 in Gray, Man. 461 [Man. R. M. 361 ; Bot. Cal. 2: 201]. 

 It is reported from Montana, but I have not seen any specimens from 

 the state. All specimens seen which are labeled S. variabilis be- 

 long to the next species. 



* Sagittaria arifolia Xutt. : J. G. Smith, INIon. in Ann. Rep. Mo. 



Bot. Gard. 6: 32 [111. Fl. i: 89]. 



This differs from the preceding in the very short erect style, and the 

 longer lanceolate bracts. It grows in shallow water, up to an alti- 

 tude of 1500 m. 



Montana: Great Falls, 1890, R. S. Williams, 28 j; Gallatin Co., 

 Mrs. Aldcrson; Teton River, 1883, 6'cr/(^;/^r, joo,' Blackfoot River, 

 1883, Canby, 333. 



*Sagittaria cuneata Sheldon, Bull. Torr. Bot. Club, 20: 283 [J. G. 



Smith, Mon. 34: 111. Fl. i: 89]. 



It is characterized by the narrow, sagittate leaves and the broad 

 lanceolate phyllodes at the base. It grows submerged in shallow 

 water, and ascends to an altitude of 2500 m. 



Montana : Herbarium of Montana College of Agriculture (name 

 of collector not given). 



Yellowstone Park: Yellowstone Lake, Aug. 12, 1897, Ryd- 

 bcrg- d- Bcssey, 3y3y : 1885, Tzvccdy, ^og. 



GRAMINEAE. 



Andropogon scoparius Michx. Fl. Bor. Am. i : 57 [Man. R. M. 

 405 ; 111. Fl. I : lOi] . 



Dry hills in the plain and prairie regions to an altitude of 1500 m. 

 Montana: Smith River, 1883, Scribner^ 331 . 



