CYPERACEAE. 69 



ing; scales light-green, lanceolate, mucronate to aristate; perigynia greenish, 

 erect, stipitate, membranaceous, ovate, much inflated, prominently nerved, 

 glabrous or scabrous along the long beak, which is sharply bifurcate; stig- 

 mata 3. 



Perigynium subglobose, glabrous, the beak bifurcate. 74. C. tnonile. 



Perigynium very large, ovate, scabrous, prominently stipitate, the beak very long, 

 bifurcate. 75. C. lupulina. 



1. Carex canescens L. In bogs from Newf. to B. C, Va., Colo, and Ore.; 

 also in Europe and Asia. — Alt. 8500-11,500 ft. — Marshall Pass; Lake Mor- 

 aine; Trapper's Lake; Bob Creek, west of Mt. Hesperus; lat. 39°-4i°.* 



2. Carex tenella Schkur. In bogs, especially in the woods, from Newf. to 

 B. C, N. J., Colo, and Calif. — Alt. 6000-11,500 ft. — North Park; Castle 

 Caiion ; Graymont ; Colorado Springs ; near Gray's Peak ; near Pagosa Peak ; 

 Bob Creek, west of Mt. Hesperus; Twin Lakes; Little Beaver Creek; Mt. 

 Elbert; along Quail Creek, near Stevens' Mine. 



3. Carex nardina Fries. From Greenl. to Alaska. Colo, and Ore. ; also 

 Europe. — Alt. 10,000-12,000 ft. — Silver Plume ; Mt. Elbert. 



4. Carex Deweyana Schwein. In woods from N. S. to Ore., Pa. and 

 N. Mex. — Alt. 4000-5000 ft. — Foot-hills, Larimer Co. 



5. Carex gynocrates Wormskj. In bogs from Labr. and Alaska to Pa. and 

 Colo. — Mosquito ; South Park. 



6. Carex stellulata Good. In bogs, Labr. and Alaska to Colo. ; also Europe 

 and Asia. — Wet Mountain Valley ; Beaver Creek. Larimer Co. 



7. Carex sterilis Willd. In moist soil from Newf. to B. C, Fla. and Calif. 

 — Twin Lakes ; South Park. 



8. Carex vulpinoidea Michx. In swamps and wet meadows from N. B. to 

 Man., Fla., Tex. and Colo. — Alt. 4000-5000 ft. — Brantly Canon, Las Animas 

 Co. 



9. Carex Hookeriana Dew. Dry meadows from Sask. and B. C. to Colo, 

 and Calif. — Alt. about 5000 ft. — Ft. Collins ; Los Pinos ; hills about Trinidad ; 

 dry meadows at Dix; gulch south of Rist Canon. 



10. Carex occidentalis Bailey. (C muricata Americana Bailey.) In mead- 

 ows from Colo, to N. M. and Ariz. — Alt. 6500-11,000 ft. — Near Pagosa Peak; 

 Sierra Blanca; Montrose; Estes Park; Cedar Edge; Green Mountain Falls, 

 near Pike's Peak ; La Plata Caiion ; Mt. Hesperus ; gulch west of Soldier 

 Canon; lat. 39°-4i°. 



11. Carex Hoodii Boott. (C muricata confixa Bailey.) In meadows from 

 Mont, and B. C. to Colo, and Calif. — Alt. up to 10,000 ft. — Continental Divide, 

 Routt Co.; foot of Mt. Richtofen, on the Michigan; Four-Mile Hill, Routt 

 Co. ; Hahn's Peak, Routt Co. ; Rabbit-Ears, Larimer Co. 



12. Carex marcida Dewey. In meadows from Man. to B. C, Neb., N. M. 

 and Nev. — Alt. 4000-8500 ft. — Gunnison; Colorado Springs; mesas near 

 Pueblo; Cucharas River, below La Veta; North Park; Pagosa Springs; 

 Durango; Ft. Collins; Buena Vista; Twin Lakes; South Park; moist 

 meadow. Fort Collins. 



13. Carex Sartwellii Dewey. In swamps from Ont. to B. C, N. Y. and 

 Utah.— South Park; lat. 39°-4i°. 



* See footnote on page 59. 



