128 MEMOIRS OF THE XE^V YORK BOTANICAL GARDEN. 



1892, Kelsey ; Missoula, 1898, Williams tC" Griffith; Emigrant 

 Gulch, Aug. 23, 1897, Rydbergdc Bcsscy, jjjg; Spanish Basin, July 

 20, sjdo (?). 



Yellowstone Park : Lake, 1885, Tzt'ccdv, ySj. 



Polygonum ramosissimum ]\Iichx. Fl. Bor. Am. i : 237 [Man. R. 



M. 319: 111. Fl. i: 564: Bot. Cal. 2: 12; Small, Mon. 114]. 



In low sandy or saline soil up to an altitude of 2000 m. 



Montana : Great Falls, 1886, Tzcccdy, 211 and jj6 : Otter Creek, 

 1883, Scrihncr, 2^0. 



Polygonum Douglasii Greene, Bull. Cal. Acad. II. i: 125 [111. 



Fl. i: 565; Small, Mon. 118]: Polx<^oiiniu tcnuc Engelmann ; 



Gray, Proc. Acad. Phila. 1863: 75 [xMan. R. M. 319]. 



Montana: Elk Mts., near Castle, i^(^6, JFlodnian, jg2 ; Cotton- 

 wood Creek, jg^: Mill Creek, 1887, Tweedy, 10^; Upper Box 

 Elder Creek, 1886, R. S. Williams, J62 ; Helena, 1892, Kclscy ; 

 Bozeman, 1892, W. T. Shazj : Pony, Jul}- 6, 1897, Rxdberg c^ 

 Ressev, S361: Spanish Basin, June 23-24, 3362: Jack Creek 

 Canon, July 14, jj6j. 



Yellowstone Park : 1885, Tzrccdy, ^82. 



Polygonum Douglasii montanum Small, Mem. Dep. Bot. Columbia 



Coll. i: 118: Polxi:;ounm tonic la ti/oliii/;i 'En ge\m. Proc. Acad. 



Phila. 75 [Man. R. M. 319] ; Polygonum Douglasii latifolium 



Greene, Bull. Cal. Acad, i : 125. 



Montana: Spanish Basin, 1896, Flodman, j8S ; Long Baldy, 

 Little Belt Mts., j6'p,- Elk Mts., near Black Hawk, jpo; Boulder 

 Creek, 1887, Tzccedy, 106. 



Yellowstone Park : Brain Peak, 1885, Tzveedy, ySo; East De 

 Lacy's Creek, Aug. 10, Rxdberg tt- Bessey, JJ64. andjj^j. 



Polygonum Engelmannii Greene, Bull. Calif. Acad. Sci. i : 126 

 [Small, Mon. 124] ; Polygonum tenue microspernium Engelm. in 

 Gray, Proc. Am. Acad. 1863: 75 [Man. R. M. 319]. 

 In sandy soil at an altitude of 1500 m. 

 Montana: Cottonwood Creek, 1896, Flodman, ^00: Sweet 



Grass Caiion, jpp. 



Yellowstone Park: Shoshone Lake, 1897, Rydberg cC- Bessey y 



5369- 



* Polygonum Austinae Greene, Bull. Calif. Acad. Sci. 2: 212 

 [Small, Mon. 126]. 



