FABACEAE. 199 



3. Lupinus plattensis S. Wats. On hillsides in western Neb., Wyo. and 

 Colo. Alt. 5000-8000 ft. Walsenburg; Denver; La Veta; butte five miles 

 southwest of La Veta. 



4. Lupinus rubricaulis Greene. Hills in Colo. Alt. about 9000 ft. Custer 

 Butte. 



5. Lupinus alpestris A. Nels. (L. alsophilus Greene.) In mountain val- 

 leys from Mont, to Colo, and Utah. Alt. 8000-11,000 ft. North fork of 

 Cache la Poudre; divide above Steamboat Springs; Grizzly Creek; Little 

 Veta Mountain; Four-Mile Hill; North Park; Buffalo Pass; mountains 

 above Ouray; summit of North Park Range, Routt Co. 



6. Lupinus parviflorus Nutt. In open woods, on hillsides, among bushes, 

 S. D. and Mont, to Colo, and Utah. Alt. 8000-12,000 ft. Near Empire; 

 Red Mountain road, south of Ouray; Pearl; North Park, near Teller; 

 Berthoud Pass ; Breckenridge. 



7. Lupinus floribundus Greene. In the mountains of Colo. Upper Bear 

 Creek. 



8. Lupinus myrianthus Greene. In the mountains of Colo. Alt. 8000- 

 9000 ft. Pitkin; Parlin, Gunnison Co.; Jack's Cabin. 



9. Lupinus comatus Rydb. In the mountains of Colo. Alt. about 8000 

 ft. Lake City; Chicken Creek, La Plata Mountains; Gunnison Co. 



10. Lupinus argophyllus (A. Gray) Cockerell. (L. decumbens argophyllus 

 A. Gray; L. Helleri Greene; L. aduncus Greene) Valleys and river banks 

 from Neb. and Colo, to N. M. Alt. 4000-9000 ft. Durango; Sangre de 

 Cristo Creek; Grayback mining camps and Placer Gulch; Mancos; Mesa 

 Verde; Colorado Springs; Antonito; bank of Conejos River. 



11. Lupinus tenellus Nutt. In the mountains from Mont, to Colo, and 

 Calif. Estes Park; Mt. Harvard; Middle Park; Twin Lakes; Kremmling. 



12. Lupinus decumbens Torr. (L. argenteus decumbens A. Gray; L. lep- 

 tostachys Greene) On prairies and hillsides from Neb., Mont, and Ore. to 

 Colo, and Calif. Alt. 4000-9000 ft. Boulder; Douglass Co.; foot-hills, 

 Larimer Co.; Colorado Springs; Wahatoya Creek; La Veta; Mosquito Pass; 

 Moon's ranch; Victoria; Veta Mountain; North Park; Trail Creek; Rist 

 Canon; Sapinero; New Windsor; Bosworth's ranch; Pennock's mountain 

 ranch; Horsetooth Mountain; Callaway; Redcliffe. 



Lupinus decumbens argentatus Rydb. Leaflets broader than in the type and 

 not conduplicate. On prairies and hillsides in Wyo. and Colo. Alt. 5000-9000 

 ft. High mountains, Larimer Co.; between Sunshine and Ward; foot-hills 

 near Boulder. 



13. Lupinus argenteus Pursh. On prairies from Mont, to Colo. Glen- 

 wood Springs. 



14. Lupinus oreophilus Greene. In the mountains from Wyo. to Utah and 

 Colo. West Cliff ; Cimarron ; Steamboat Springs ; Meeker ; Rio Blanco Co. 



15. Lupinus humicola A. Nels. In rich soil in Colo, and Wyo. Near 

 Ironton, San Juan Co. 



16. Lupinus sericeus Pursh. On prairies from Ass. and Wash, to Wyo. 

 and Nev. A doubtful specimen has been collected in Colo. Minturn. 



17. Lupinus Bakeri Greene. In the mountains of Colo. Alt. 7000-8500 

 ft. Hesperus; Los Pinos (Bayfield) ; Cedar Edge. 



