MEMOIRS OF THE NE^V YORK BOTANICAL GARDEN. 367 



Thalesia fasciculata (Nult.) Britton, Mem, Torr. Bot. Club, 5: 298 



[111. Fl. 3: 195]; Orobanche fasciculata Nutt. Gen. 2: 59; 



Afhyllon fasciculatum Gray, Man. 290 [Syn. Fl. 2': 312; Bot. 



Cal. I : 584 ; Man. R. M. 289] . 



Parasitic commonly on species of Ariemisia. On dry hills, up to 

 an altitude of 2500 m. 



Montana: Helena, 1890, JF. D. Kelsey ; Indian Creek, July 22, 

 1897, Rydbcrg & Bcssey, 4g8g; Spanish Basin, 1895, Flodman^ 

 7P7,' Park Co., 1887, Tzvcedy, ij8 ; Spanish Basin, June 24, 1897, 

 Rydbcrg & Bcssey, 4ggi ; Gallatin Co., Mrs. Mary L. Alderson; 

 1883, Scribner, 208. 



Yellowstone Park : 1888, Dr. Chas. H. Hall; Yellowstone 

 Lake, 187 1, Uaydeti Siirvey. 



Thalesia fasciculata lutea (Parry) Britton, Mem. Torr. Bot. Club, 



5 : 298 [111. Fl. 3 : 195] ; Philipaca lutea Parry, Am. Nat. 8 : 214 ; 



Aphyllon fasciculatu7n lutcum Gray, Syn. Fl. 2^: 312 [Man. R. 



M. 289] . 



Parasitic on grasses. Growing on dry plains or hills, up to an 

 altitude of 2500 m. 



Montana: Bridger Mts., June 14, 1897, Rydbcrg & Bcssey, 

 4gg2 ; Sixteen Mile Creek, 1883, Scribncr, 2oy. 



Yellowstone Park: 1873, C. C. Parry, 202. 



* Thalesia purpurea Heller, Bull. Torr. Bot. Club, 24: 313. 



Resembles T. unifora, but has larger and darker flowers. It 

 grows on open gravelly hills, up to an altitude of 200 m. 



Montana: Deer 'L.od.^^Qo., Miss Emma Ware; West Gallatin, 

 1883, Scribncr, 206. 



LENTIBULARIACEAE. 



Utricularia vulgaris L. Sp. PI. 18 [111. Fl. 3: 191; Syn. Fl. 2': 



315; Bot. Cal. i: 586; Man. R. M. 290]. 



In stagnant water, up to an altitude of 2500 m. 



Montana: Lower Sand Coulee, 1891, R. S. Williams, 617; 

 Alhambra, 1892, F. D. Kelsey; Sun River, 1883, Scribncr, 205. 



Yellowstone Park: Lone Star Geyser Basin, Aug. 7, 1897, 

 Rydbcrg & Bcssey, 4g86 ; Lewis Lake, 1884, Tweedy, 228. 



Utricularia minor L. Sp. PI. 18 [111. Fl. 3 : 192 ; Syn. Fl. 2^ : 315 ; 

 Bot. Cal. i: 586; Man. R. M. 290]. 

 In shallow still water, up to an altitude of 2500 m. 



