2 24 MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 



River, 1886, Tweedy, iigs; Big Pipestone Creek, 1888,^6'; Lewis 

 and Clarke Co., Mrs. Miith ; Priest's Pass, 1892, F'. D. Kelsey ; 

 Tenderfoot, 1891, R. S. Willams, 8j2 ; Priest's Pass, 1883, Canhy, 

 g8 ; Boulder Creek, 1883, Scribner, jya ; 1861, Dr. Lyall. 



Agrimonia hirsuta (Miihl.) Bicknell, Bull. Torr. Bot. Club, 23: 



509 [111. Fl. 2 : 226] ; Agri)nonia Eiifatoria hirsuta Muhl. Cat. 



47; Agrimonia Etifatoria Walt. Fl. Car. 131 [Man. R. M. 87; 



Bot. Cal. I : 185] ; not L. 



Among bushes, up to an altitude of 1500 m. 



Montana: Belt Mountains, near Hound Creek, 1883, Scrib- 

 ner, j8. 



Rosa Arkansana Porter, Fl. Colo. 38 [Wats. Proc. Am. Acad. 



20: 341; Man. R. M. 87; 111. Fl. 2: 230]. 



R. Arkansana differs from the two related species in the sepals 

 which are reflexed (but not deciduous) in fruit. It belongs to the 

 prairie and plains regions, ascending in the vallej's to an altitude of 

 nearly 2000 m. 



Montana: Park Co., 1889, Tweedy; Bozeman, 1886, Tweedy, 

 1 186; Frenchman's Creek, Cones; Upper Yellowstone, Allen; 

 Nevada Creek, Sargent ; Hound Creek, Scribner, 48. 



Rosa Sayi Schw^ein : Long's Exp. Winnep. 2 : 388 [Wats. Proc. 



Am. Acad. 20: 340 [Man. R. M. 87]. 



The fruit of this species is almost as large as that of R. Nntkana, 

 which this species most resembles, but is easily distinguished by the 

 thinner leaves, the absence of infrastipular spines and the usual 

 presence of numerous bristles, especially on the young shoots. Un- 

 like R. Arkansana, it nearly always grows among trees or shrubs; 

 reaches an altitude of almost 3000 m. 



Montana: South Fork of Judith River, 1895, Flodman, 612; 

 Emigrant Gulch, Aug. 23, 1897, Rydberg & Bessey, 4425; Bridger 

 Mts., June 17, 44.26; Spanish Basin, June 28, 4424; Jack Creek, 

 June 14, 4423; Lewis and Clarke Co., Mrs. Muth; Madison Co., 

 1888, Tweedy, 46; Trail Creek, 1887, iga; Belt Mts., 1890, R. S. 

 Williams, 752; Helena, 1892, Mrs. Muth; Bozeman, 1883, Canby, 

 108 ; Helena, 1882, Canby. 



Yellowstone Park: Mammoth Hot Springs, 1893, Addison 

 Brown; 1885, Tweedy, 4^1 and 4^2. 



Rosa Nutkana Presl, Epim. 203 [Wats. Proc. Am. Acad. 20: 341 ; 

 Man. R. M. 88; Bot. Cal. 2: 444]. 



