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. 



1 8. COLEOGYNE Torr. 



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

 Ariz, and Calif. Alt. 5250 ft. Near Hovenweep Castle (Brandegee). 



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. 



