MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 1 39 



In similar situations as the preceding and often growing with it. 



Montana : Bridger Mountains, June 12 and 15, 1897, Rydbcrg & 

 Bessey, jgyo, jgyi 2ind jgy^; Lake Plateau, 1897, P. Koch, 60: 

 Upper Marias Pass, 1883, Canby, jj ; Bozeman, 1883, Scribner, 



Yellowstone Park: Swan Lake, 1885, Tzoccdy^ 4^4^ Yellow- 

 stone Lake, 1871, Haydcn. 



Claytonia megarrhiza (Gray) Parry; Wats. Bibl. Ind. 118 [Syn. 



Fl. i^ : 272 ; Man. R. M. 39] ; Claytonia arctica megarrhiza 



Gray, Am. Journ. Sc. (H.) 33: 406. 



In rocksides on the highest mountains, at an altitude of 2800 m. or 

 more. 



Montana: Mountains near Indian Creek, July 22, 1897, Ryd- 

 berg & Bcsscy, jgyS; Gallatin Co., 1886, Tzvcedy, iog6; Upper 

 Marias Pass, 18S3, Canby, jj. 



Montia asarifolia (Bong.) Howell, Erythea, i: 39 [Syn. Fl. i' : 

 273] ; Claytonia asarifolia Bong. Veg. Sitch. 137 ; C. cordifolia 

 Wats. Proc. Am. Acad. 17: 365 [Man. R. M. 38]. 

 In springy places in the mountains of western Montana. 

 Montana: Lyall : Missoula, Watson; Coeur d'Alenes, 1891, 



Kelscy. 



Montia Chamissonis (Ledeb.) Greene, Fl. Fran. 180 [Syn. Fl. i^ : 



275]; Clay 1 0)1 ia Chaniissoi Ledeb.; Spreng. Syst. i: 790; C. 



Chamissonis Esch. ; Cham. Linnaea, 6 : 562 [Man. R. M. 38 ; 



Bot. Cal. i: 76: 111. Fl. 2:3]. 



In water or swampy places, at an altitude of 1000-2500 m. 



Montana: Deer Lodge, 1895, Rydbcrg, 2632. 



Yellowstone Park: Upper Falls, Aug. 14, 1897, Rydbcrg & 

 Besscy,3g77; head of Gibbon River, 1884, Tzuccdy, 14; Yellow- 

 stone Lake, 187 1, Haydcn. 



Montia perfoliata (Donn) Howell, Erythea, i: 38 [Syn. Fl. i' : 



27-1] : Claytonia perfoliata Donn, Hort. Cant. 25 [Man. R. M. 



38; Bot. Cal. i: 75; 111- Fl. 2:4]. 



In springy places, at an altitude of 2000-2500 m. 



Montana: Bridger Mountains, June 10, i^c)^ , Rydbcrg d- Besscy, 

 jg8i; Natural Bridge, Boulder River, 1897, P. Koch, 62. 



