ROSACEAE. 189 



1. Holodiscus dumosus (Nutt.) Heller. (Spiraea dumosa Nutt.) On hills 

 and mountains from Wyo. and Utah to Colo, and Ariz. Alt. 5000-9000 ft. 

 Cheyenne Mountain ; near Georgetown ; Grand Junction ; Glenwood Springs ; 

 Idaho Springs; Black Canon; southeast of Ouray; Ragged Mountain, Gun- 

 nison Co. ; Ute Pass ; North Cheyenne Canon ; vicinity of Pine Grove ; 

 Empire. 



2. Holodiscus australis Heller. On hills from Colo, to N. M. and Ariz. 

 Alt. 6000-9000 ft. Colorado Springs; Sangre de Cristo Creek; Cheyenne 

 Canon ; Georgetown ; Minnehaha. 



3. Holodiscus microphyllus Rydb. On dry hills from Ida. and Ore. to Colo, 

 and Calif. Alt. about 9000 ft. Chicken Creek; Mt. Harvard. 



17. KUNZIA Spreng. 



i. Kunzia tridentata (Pursh) Spreng. (Purshia tridentata DC.) On dry 

 hills from Mont, and Wash, to N. M. and Calif. Alt. 7000-8000 ft. Liver- 

 more, Larimer Co. ; Dolores ; Walcott ; divide road to Steamboat Springs ; 

 Pearl; between Pallas and Sydney; Rist Canon; Stove Prairie Hill; Horse- 

 tooth Gulch ; north of Poudre ; Pinkham Creek. 



18. COLEOGYNE Torr. 



i. Coleogyne ramosissima Torr. From southwestern Colo, and Nev. to 

 Ariz, and Calif. Alt. 5250 ft. Near Hovenweep- Castle (Brands gee). 



19. CERCOCARPUS H. B. K. MOUNTAIN HOLLY. 



i. Cercocarpus parvifolius Nutt. On hills from S. D. and Mont, to N. M. 

 and Utah. Alt. 5000-10,000 ft. Golden; Colorado Springs; Boulder; Cerro 

 Summit ; Manitou ; Cucharas River, above La Veta ; Livermore, Larimer Co. ; 

 Mancos ; Trail Glen, Pike's Peak ; North Cheyenne Canon ; foot-hills, Lari- 

 mer Co. ; Horsetooth Gulch ; gulch west of Pennock's ; Rist Canon ; Pen- 

 nock's mountain ranch; Poudre Canon; Trinidad; Ft. Collins; Eldora to 

 Baltimore. 



20. DRYAS L. 



i. Dryas octopetala L. On alpine peaks and in arctic regions from Greenl. 

 and Alaska to N. H., Colo, and Utah. Alt. 11,000-14,000 ft. Mt. Bartlett, 

 Robinson ; Bottomless Pit ; Silver Plume ; Mt. Harvard ; mountains south 

 of Ward ; Front Range, Larimer Co. ; above Beaver Creek ; Cameron Pass. 



21. AGRIMONIA L. AGRIMONY. 



i. Agrimonia Brittoniana occidentalis Bickn. Among bushes from S. D. 

 and Wyo. to N. M. and Ariz. The type-species extends east to Que. and 

 W. Va. Alt. about 5000 ft. Ft. Collins; North Cheyenne Canon; Poudre 

 flats; Table Rock; Redstone. 



