MEMOIRS OF THE NEW VORK BOTANICAL GARDEN. 385 



lovia Doiiglasii lanccolata Gray, Syn. Fl. i" : 140, in part; B. 

 Douglasii fiihcriUa Proc. Am. Acad. 8: 639 [Bot. Cal. i: 318]. 

 Like C. viscidifonis, but the leaves narrower and puberulent. 

 Dry plains and prairies, at an altitude of 1500-2500 m. 

 Montana: Gardiner, 1885, Tweedy, 'J24. 



* Chrysothamnus stenophyllus (Gray) Greene, Erythea, 3 : 94 ; Bi- 



gelovia Doiiglasii stenopJiylla Gray, Proc. Am. Acad. 8 : 644 



[Syn. Fl. I- : 140] . 



Like C. viscidiforiis, but with linear almost filiform leaves which 

 are generally spreading. Dry hills and benchlands, at an altitude of 

 1500-2000 m. 



Montana: Logan, 1895, Rydhe?-g, 280J ; Fridley, Aug. 22, 

 1897, Rydherg & Bessey, jO^^a; Billings, 1898, WiUiains cf- Grif- 

 jith; Logan, 1895, Rydberg, 28 oj. 



Chrysothamnus viscidiflorus (Hook.) Nutt. Trans. Am. Phil. Soc, 

 (II.) 7: 324; Crinitaria viscidijlora Hook. Fl. Bor. Am. 2 : 24 ; 

 Bigelovia Doiiglasii Gray, Proc. Am. Acad. 8 : 644 [Syn. Fl. 

 i^: 139; Bot. Cal. i: 317; Man. R. M. 151]. 

 Dry plains, at an altitude of 1000-1500 m. 

 Montana: Little Blackfoot River, i860. Cooper. 



Chrysothamnus viscidiflorus lanceolatus (Nutt.) Greene, Erythea, 3 : 

 95 ; C/wysot/iaiiiniis la/u:eo/aliis Nutt. Trans. Am. Phil. Soc. (II.) 

 7: 324; Bigelovia Doiiglasii lanceolaia Gray, Syn. Fl. i' : 140 

 [Man. R. M. 151]. 



On dry prairies and plains, at an altitude of 1000-2000 m. 

 Montana; Belt Mts., 1888, 7?. S. Williams; Helena, 1890, 7^. 



D. Kelsey ; 1886, Tzveedy, 11 36. 



Chrysothamnus nauseosus (Pursh) Britton, Mem. Torr. Bot. Club, 5 : 

 317 ; Chrysothamnus speciostis Nutt. Trans. Am. Phil. Soc. (II.) 7 : 

 323 ; Bigelovia graveolens Gray, Proc. Am. Acad. 8: 644 [Syn. 

 Fl. i": 139; Bot. Cal. i : 317; Man. R. M. 151]. 

 On prairies and plains, at an altitude of 1500-2000 m. 

 Montana: Rainbow Falls, 1885, R. S. Williams, 2^3; Electric 

 Peak, August 20, 1897, Rydberg & Bessey, ^04^; 1886, F. Tweedy., 

 1 135; Horse Plains, 1883, H. B. Ayres, CCLXXXV. 

 Yellowstone Park: 1892, Mrs. Simonton. 



Chrysothamnus nauseosus albicaulis (Nutt.) ; Chrysothamnus speci- 

 osiis albicaulis Nutt. Trans. Am. Phil. Soc. (II.) 7: 323; Bige- 



