278 me:moirs of the new york botanical garden. 



Yellowstone Park: Electric Peak, Aug. 18, 1897, Rydberg & 

 Bessey, ^.^dy and 4j6S ; Soda Butte Creek, 1885, Tzvccdy, ^21. 



Montana: Cedar Mountains, July 16, 1897, Rydberg & Bessey, 

 4S6g; Mill Creek, 1887, Tzvcedy, 235. 



Chamaenerion angustifolium (L.) Scop. Fl. Carn. Ed. 2, i: 271 

 [111. Fl, 2 : 481] ; Efilobiiun august if ol mm L. Sp. PL 347 ; Rpi- 

 lobiimi spicatum Lam. Fl. Franc. 3: 482 [Man. R. M. loi : Tre- 

 lease, Ann. Rep. Mo. Bot. Gard. 2 : 80 ; Bot. Cal. i : 218]. 

 In valleys and open woods, up to an altitude of 2500 m. 

 Montana : Forks of the Madison, July 26, 1897, Rydberg & 

 Bessey, 4548 ; Emigrant Gulch, Aug. 23, 4347 ; Helena, 1891, Kel- 

 sey ; Bear Creek Canon and West Gallatin, 1892, W. T. Shazv ; 

 Silver Bow Co., Mrs. Christie; Fort Ellis to the Yellowstone, 187 1, 

 Hayden Sxirvey ; Jefferson City, 1883, Scribner, 36b. 



Yellowstone Park: Pelican Creek, 1885, R. Tzveedy, 324. 



Chamaenerion latifolium (L.) Sweet, Hort. Brit. Ed. 2, 198 [111. Fl. 



2 : 481] ; Epilobium latifoUiun L. Sp. PI. 347 [Man. R. M. 102 ; 



Trelease, Ann. Rep. Mo. Bot. Gard. 2 : 81 ; Bot. Cal. i : 219]. 



Rare, growing at an altitude of 2000-3000 m. 



Montana: Belt River, 1886, R. S. Williams, 147 ; Blackfoot 

 River, 1883, Canby, 131. 



Yellowstone Park : Soda Butte Creek and Cache Creek, 1885, 

 Tzveedy, 322. 



* Boisduvallia glabrella (Nutt.) Walp. Rep. 2: 89 [Trelease, Ann. 

 Rep. Mo. Bot. Gard. 5 : 117 : Bot. Cal. i : 233] ; OEnother a gla- 

 bella Nutt. ; Torr. & Gray, Fl. N. Am. i : 505. 

 A small plant belonging to a genus distinguished from the OEno- 



thera series by the short basifixed anthers and erect calyx-lobes. 



From Epilobium it is mainly distinguished by the lack of coma. 



Flowers in subterminal spikes, shorter than the subtending leaves ; 



corolla violet. 



Montana: Sand Coulee, 1891, R. S. Williams, yjj ; 1887,/^. 



W. Anderson ; Deer Lodge, 1892, JVotestein. 



* Onagra strigosa. 



Biennial ; stems 4-10 dm. high, grayish strigose and somewhat vil- 

 lous on the upper part; leaves gravish strigose, first ones obovate or 

 spatulate and obtuse, the lower stem-leaves broadly oblanceolate, 

 acute, 5-10 cm. long, more or less wavy, the upper ones lanceolate 



