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 Caiion ; 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 

 Caiion; 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 (Brandegee). 



19. CERCOCARPUS H. B. K. Mountain Holly. 



1. 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 Caiion ; 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 tj^e-species extends east to Que. and 

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

 flats; Table Rock; Redstone. 



