188 ROSACEAE. 



Soldier Canon ; Graymont ; Ft. Collins ; Happy Hollow ; Elk Canon ; Bos- 

 worth's ranch; Boulder. 



2. Geum oregonense (Scheutz) Rydb. (G. urban um oregonense Scheutz; 

 G. macro phyllitm Coulter, in part; not Willd.) In mountain meadows from 

 Mackenzie and B. C. to N. M. and Calif. Alt. 6000-10,000 ft. La Plata 

 Canon ; Veta Pass ; Marshall Pass ; Cascade Canon ; Chicken Creek, west of 

 Mt. Hesperus; Grizzly Creek; Chambers' Lake; White River Plateau; 

 Hounold ; Yampa; Victoria; Ironton Park, nine miles south of Ouray; Man- 

 cos ; Castle Canon ; Arapahoe Pass ; Elk Canon ; Beaver Creek ; Rico ; foot- 

 hills, Larimer Co. ; Medicine Bow Mountains ; Arapahoe Pass ; Empire ; 

 Eldora to Baltimore ; Steamboat Springs. 



3. Geum rivale L. In swamps and wet meadows from Newf. and B. C. 

 to N. J. and Colo. Alt. 8000-9000 ft. Estes Park; Twin Lakes; headwaters 

 of Sangre de Cristo Creek; Indian Creek Pass; Victoria; Parlin, Gunnison 

 Co. ; Ironton Park, nine miles south of Ouray ; Crystal Park ; Empire ; 

 Walden. 



14. SIEVERSIA R. Br. MOUNTAIN AVENS. 



Petals light purple; styles in fruit much elongated, plumose. i. 5\ ciliata. 



Petals yellow ; styles scarcely elongating in fruit, appressed hairy. 



2. 5 1 . turbinata. 



1. Sieversia ciliata (Pursh) Don. (Geum ciliatum Pursh; G. triflorum 

 Pursh) On hills from Lab. and B. C. to N. Y. and Calif. ; also in Mex. 

 Alt. 8000-12,000 ft. Como, South Park ; Mt. Harvard ; Chicken Creek, West 

 La Plata Mountains ; North Park ; Twin Lakes ; Pike's Peak ; Pagosa ; near 

 Graymont; Marshall Pass; Van Boxle's ranch, above Cimarron; west of 

 Ouray; Red Mountain road, south of Ouray; Dead Lake; Palsgrove Canon; 

 Arapahoe Pass; on the Michigan; Big South; near Silverton; Beaver Creek. 



2. Sieversia turbinata (Rydb.) Greene. (Geum turbinatum Rydb.; G. 

 Rossii T. & G. ; not Ser.) On the higher peaks from Wyo. to N. M. and 

 Ariz. Alt. 10,000-14,000 ft. Gray's Peak ; Uncompahgre Peak ; Cameron 

 Pass; Pike's Peak; West Spanish Peak; near Pagosa Peak; Cumberland 

 Basin, La Plata Mountains ; Bear Creek Divide, West La Plata Mountains ; 

 Flat Top Mountains ; Alpine Tunnel ; Carson ; Beaver Creek ; Boreas ; 

 Devil's Causeway; Graymont; Berthoud Pass; Ethel Peak. 



15. FALLUGIA Endl. 



i. Fallugia acuminata (Woot.) Rydb. (F. paradoxa Coult, in part; and v. 

 acuminata Woot.) On dry hills from Colo, and Utah to Tex and Ariz. Alt. 

 8000-9000 ft. Sangre de Cristo Creek ; Cimarron. 



16. HOLODISCUS Max. 



Leaf-blades broadly rounded ovate-spatulate, more or less double-toothed, with 



rounded teeth. i. H. dumosus. 

 Leaf-blades oval or obovate, with simple ovate teeth. 



Leaf-blades 1.5-4 cm. long; panicle open, with spreading or reflexed, long 



branches. 2. H. australis. 



Leaf-blades 1-1.5 cm. long; panicle contracted, with short few-flowered 



branches. 3. H. microphyllus. 



