MONTANA AGRICULTURAL COLLEGE SCIENCE STUDIES. 



Westward. Bozeman, Aug. 30, 1899; Columbia Falls, July 20, 1900; 

 Kalispell, July 23, 1900; Missoula, June 30, 1903 ; Arlee, Aug. 5, 1901 ; 

 Leonia, Sept. 16, 1900; Libby Cr., July 26, 1900; Ennis, July 17, 1899; 

 Big Timber, July 15, 1902; Melville, July 21, 1901. 



Lupinus Hellerae,Rydberg, Flora, 231. See L. canlcsccns above. 



Lupinus laxus, Rydberg, Bull. Torr. Bot. Club, 30:258. 

 "Forks of the Madison, 1897, Rydberg & Bessey, 4442 & 



Lupinus minimus, Dougl. Flat-top Mtn., Teton Co., 7000 ft.. 

 July 5, 1897, R. S. Williams; Mt. Henry, Midvale, 7-8000 ft., July 16, 

 1903, L. M. Umbach, 94, 175, 304, 398; Upper Marias Pass, east 

 side, 7000 ft., Aug. 4, 1883. W. M. Canby, 67 (Gray Herb.). 



Lupinus ornatus, Dougl. See L. flc.vnosus, Lindl. above. 

 Thompson Falls, Aug. 6, 1901 ; Big Fork, Aug. 25, 1901, L. M. Um- 

 bach, 589. 



Lupinus pulcherrimus, Rydberg, Bull. Torr. Bot. Club, 30:258. 

 "Divide between McDonald and Camas Lakes, 1901, F. K. Yreeland. 

 996; Little Belt Pass, 1896, Rydberg, 3318, J. H. Flodman, 620; 

 Baltic, 1900, E. V. Wilcox, 58." 



Lupinus Rydbergii, n. sp. : L. HcHcrac, Rydberg, Flora, 231. 



A short-caulescent, herbaceous perennial, 2-3 dm. high : leaves 

 mainly radical on long (5-10 cm.) petioles; leaflets 8-10, oblanceo- 

 late, acute, 3-4 cm. long, 6-9 mm. wide, coarsely canescent to sub- 

 Villous with white appressed pubescence: racemes 8-14 cm. long and 

 about 3 cm. in diameter, exserted above the leaves on peduncles 

 about half as long: bracts linear, deciduous; pedicels 5-7 mm. long; 

 calyx slightly gibbous: corolla blue or purplish, 10 mm. long': stand- 

 ard with white or yellowish center, naked ; keel ciliate, white below : 

 legume 3-5 seeded, densely silky villous. Dry ridges and uplands 

 of the lower mountains mainly. Certainly near L. HcHcrac, Heller. 

 but differs in its smaller flowers and pubescence. The tvpical 

 Hcllcrac has not yet been found in the state. Near L. a.rillaris above. 



Big Coulee Cr., Sweet Grass Co., June 15, 1902; Mcim'a. June 26. 

 1902; i6-mile Cr., July 24, 1902; Dewey, 7500 ft., June 2.1, 1:902; 

 Sedan, June 7, 1902, W. W. Jones; Columbia Falls, May 22, 1897, 

 R. S. Williams. , 



Lupinus Scheuberae, Rydberg, Bull, Torr. Bot. Club, 29:244. 



