ROSACEAE. 185 



23. Potentilla filicaulis (Nutt.) Rydb. (P. effusa filicaulis Nutt.) In the 

 mountains -from Colo, to Ida. — Beaver Creek. 



24. Potentilla rubripes Rydb. (P. rubricaulis Rydb., mainly; not Lehm.) 

 In the higher mountains from Alb. to Colo. — Alt. 10,000-13,000 ft. — Estes 

 Park; Mt. Abram, Ouray; Pike's Peak; Little Kate Mine, La Plata Moun- 

 tains ; Cameron Pass ; Berthoud Pass ; Rabbit-Ears, Larimer Co. 



25. Potentilla minutifolia Rydb. On the higher peaks of Colo. — ^Alt. 9000- 

 13,000 ft. — Graymont ; Georgetown ; Saddle, Pike's Peak ; mountains of Estes 

 Park; Cumberland Mine; Eldora to Baltimore. 



26. Potentilla tenerrima Rydb. On the higher mountains of Colo. — Alt. 

 10,000-13,000 ft. — Pike's Peak; West Spanish Peak. 



27. Potentilla saximontana Rydb. On the higher peaks of Colo. — Alt. 

 10,000-13,000 ft. — Pike's Peak; West Spanish Peak. 



28. Potentilla pinnatisecta (S. Wats.) Rydb. In the mountains from. Alb. 

 to Colo, and Utah. — Alt. 8000-12,000 ft.— Little Kate Mine, La Plata Moun- 

 tains; mountains of Estes Park. 



29. Potentilla plattensis Nutt. In mountain meadows from Sask. to Colo, 

 and Utah.— Alt. 8000-10,000 ft.— Platte River, South Park; Tobe Miller's 

 ranch; Walden; Gunnison; Ojo; Placer Gulch; headwaters of Sangre de 

 Cristo Creek ; Buena Vista. 



30. Potentilla rupincola Osterh. Mountains in Colo. — Dale Creek, Larimer 

 Co. 



31. Potentilla Eippiana Lehm. On plains and in meadows from Minn., 

 Sask. and Alb. to N. M. and Ariz. — Alt. 4000-10,000 ft. — Near Empire; Trap- 

 per's Lake; Estes Park; Willow Creek; Georgetown; Gunnison; Colorado 

 Springs; South Park; Chambers' Lake; Upper Laramie River; Forrester's 

 ranch, Larimer Co. ; North Park ; Indian Creek Pass. 



32. Potentilla propinqua Rydb. {P. Hip plana diifusa Lehm.) In meadows 

 from Colo, to N. M. and Ariz. — Alt. 6000-10,000 ft. — Rico; Como; near Nar- 

 rows; Durango; Chambers' Lake; near Pagosa Peak; Mancos; Pagosa 

 Springs; Ruxton Dell; Chicken Creek; Pitkin; Mt. Hesperus; North Park; 

 Grizzly Creek, southwest of North Park. 



33. Potentilla effusa Dougl. On plains and hills froni Ass. and Mont, to 

 N. M. — Alt. 5000-10,000 ft. — Crow Creek; near Empire; Bosworth's ranch; 

 Poudre fiats, above Ft. Collins ; Estes Park, Larimer Co. ; Table Rock ; 

 Moore's ranch; Manitou; Cameron Pass; Cascade; Indian Creek Pass; 

 Sangre de Cristo Creek; near Boulder. 



34. Potentilla coloradensis Rydb. In the mountains of Colo. — Alt. 8000- 

 10,000 ft. — Georgetown; South Park; Estes Park, Larimer Co.; Empire; 

 Chambers' Lake; Minnehaha; Silver Plume; Como. 



35. Potentilla ambigens Greene. In the mountains of Colo, and N. M. — 



36. Potentilla crinita A. Gray. On dry hills of Colo., Utah, N. M. and 

 Ariz. — Piedra. 



6. HORKELIA C. & S. 



I. Horkelia Gordonii Hook. On dry mountains from Mont, and Wash, to 

 Colo, and Calif. — Alt. about 11,000 ft. — Buffalo Pass; summit of North 

 Park Range, Routt Co.; Ethel Peak. 



