RANUNCULACEAE. 
141 
9. CLEMATIS L. Virgin’s Bower. 
1. Clematis ligusticifolia Nutt. Among bushes and in canons from N. D. 
to B. C., Mo. and Calif.—Alt. 4000-8000 ft.—Log Canon; Poudre River, near 
Ft. Collins; Rist Canon; Redstone; Narrows; Deer Run; Ft. Collins; near 
Ouray; Manitou; Cucharas Valley, near La Veta; Piedra; Arkansas Valley; 
Salida; Durango; plains, Colorado Springs. 
10. VIORNA Reichenb. Leather-flower, Vase-vine. 
Sepals not at all or very slightly dilated above. 
Divisions of the leaves ovate or ovate-lanceolate, 2-5 cm. long. 1. V. Scottii. 
Divisions of the leaves linear to lanceolate, 1-2 cm. long. 2. V. Bakeri. 
Sepals conspicuously dilated at the apex. 
Sepals acute or short-acuminate ; plant in age glabrate; divisions of the leaves 
lanceolate. 3. V. Jonesii. 
Sepals obtuse or merely acutish; plant permanently villous; divisions of the 
leaves linear. 4. V. eriophora. 
1. Vioma Scottii (Porter) Rydb. ( Clematis Scottii Porter; C. Douglasii 
Scottii Coulter) In open woods and on hillsides from S. D. to Wyo. and 
N. M.—Alt. 4000-9000 ft.—Vicinity of Dillon Canon; Trinidad; La Veta; 
Veta Pass; Poverty Ridge, near Cimarron; Grizzly Creek; La Plata River 
Valley, near Hesperus Post Office; Canon City. 
2. Viorna Bakeri (Greene) Rydb. ( Clematis Bakeri Greene) In moun¬ 
tains of Colo.—Alt. about 7000 ft.—Los Pinos; Camp Creek, Larimer Co. 
3. Viorna Jonesii (Kuntze) Rydb. ( Clematis Douglasii Jonesii Kuntze) 
On hillsides and in canons from Colo, to Nev.—Alt. 5000-9000 ft.—Howe’s 
Gulch, near Ft. Collins; vicinity of Ouray; Dolores; Cimarron; Dixon Canon; 
foot-hills near Boulder. 
4. Viorna eriophora Rydb. ( Clematis eriophora Rydb.)^ In the foot-hills 
of Colo., Utah and Wyo.—Alt. 4000-7000 ft.—Foot-hills, Larimer Co.; gulch 
west of Dixon Canon; Howe’s Gulch; Rist Canon; Horsetooth Gulch; Ft. 
Collins;• Clear Creek; mesas near Colorado Springs; mountains near Golden 
City; Pagosa. 
11. ATRAGENE L. Bell-rue, Purple Virgin’s Bower. 
Leaves merely ternate. 
Staminodia usually decidedly spatulate; leaflets toothed or cleft; teeth and apex 
rounded. 3. A. diversiloba. 
Staminodia linear or none; leaflets entire or crenate above the middle, long- 
acuminate. 1. A. occidentalis. 
Leaves twice or thrice ternate ; staminodia linear or lacking. 
Secondary leaflets merely toothed or cleft. 2. A. pseudalpina. 
Secondary leaflets divided to near the base. 4. A. tenuiloba. 
1. Atragene occidentalis Hornem. (A. Columbiana Nutt.; Clematis verti- 
cillaris Coult., in part) In mountain woods from Mont, to B. C., Colo, and 
Utah.—Alt. 5000-7000 ft.—Foot-hills, Larimer Co.; Howe’s Gulch; gulch east 
of Stove Prairie; Rist Canon; Baxter’s ranch; Ft. Collins; Four-Mile Hill, 
Routt Co.; Empire; Camp Creek, Larimer Co. 
2. Atragene pseudalpina (Kuntze) Rydb. ( Clematis alpina occidentalis 
A. Gray; not A. occidentalis Hornem.) On hillsides, among bushes and in 
