EPILOBIACEAE. 243 



Creek ; mountains above Ouray ; Cameron Pass ; Front Range, Larimer Co. ; 

 Gore Pass ; Chambers' Lake ; Graymont. 



10. Epilobium Hornemannii Reichenb. On mountain sides in wet places, 

 from Greenl. and Alaska to N. H., Colo, and Calif. Alt. 8000-10,000 ft. 

 Near Empire ; Mt. Harvard ; head of Bard Creek ; Marshall Pass ; Cameron 

 Pass; Grayback mining camps and Placer Gulch; Estes Park, Larimer Co.; 

 Silver Plume; Beaver Creek; Buffalo Pass; summit of North Park Range, 

 Larimer Co. 



n. Epilobium anagallifolium Lam. In wet soil from Lab. and Alaska to 

 Colo, and Nev. Alt. 10,000-12,000 ft. Caribou; near Pagosa Peak; Silver 

 Plume; west of North Park. 



12. Epilobium clavatum Trelease. On alpine peaks from Mont, and B. C. 

 to Colo. Summit of North Park Range, Larimer Co. 



13. Epilobium wyomingense A. Nels. (E. palustris albiflorum Hook.) In 

 swamps from Sask. and Yukon to Colo. 



14. Epilobium lineare Muhl. In swamps from N. B. and B. C. to Del., 

 Ind. Terr, and Colo. New Windsor. 



15. Epilobium paniculatum Nutt. In sandy soil from Alb. and B. C. to 

 Colo, and Calif. Alt. 5000-9000 ft. Gregory Canon; headwaters of Clear 

 Creek; Ft. Collins; Doyle's; Marshall Pass; south of Ouray; Cimarron; 

 Ruxton Park ; Piedra ; mountains, Larimer Co. ; Horsetooth Gulch ; between 

 Porter and Durango ; Gunnison Co. ; gulch west of Soldier Canon ; Steam- 

 boat Springs; Boulder; Elk River, Routt Co. 



16. Epilobium adenocladon (Haussk.) Rydb. (E. paniculatum adenocladon 

 Haussk.) In sandy soil from S. D. and Wyo. to Colo, and Utah. Alt. 5000- 

 8500 ft. Boulder; southeast of Ouray; Horsetooth Gulch; Soldier Canon; 

 Cassel's. 



3. GAYOPHYTUM Juss. 



Capsules torulose, less than 3 times as long as the stipes, usually more or less 



clavate. 

 Petals 1.5-2.5 mm. long, rose with yellow base; capsules 8-12 mm. long, 



nearly tiwce as long as the stipes. i. G. intermedium. 



Petals about i mm. long, rose or white. 



Capsules decidedly clavate, rounded at the apex, seldom longer than the 



stipes, spreading or reflexed. 2. G. ramosissimum. 



Capsules only slightly if at all clavate, narrow, usually longer than the 



stipes and erect. 3 . G. Nuttallii. 



Capsules neither torulose not clavate ; stipes very short. 4. G. racemosum. 



1. Gayophytum intermedium Rydb. On hillsides in sandy soil from Mont, 

 and Wash, to Colo, and Calif. Alt. 5000-10,000 ft. Caribou; near Empire; 

 west of Ouray; Chambers' Lake; Grayback mining camps and Placer Gulch; 

 Veta Pass ; Ward, Boulder Co. ; between Sunshine and Ward ; Boulder ; 

 North Park; Table Rock. 



2. Gayophytum ramosissimum T. & G. On hillsides, especially in sandy 

 soil, from Mont, and Wash, to Colo., Ariz, and Calif. Alt. 6000-10,000 ft. 

 Headwaters of Clear Creek; Lake City; Grayback mining camps and Placer 

 Gulch; Mt. Harvard; Veta Pass; Turkey Creek and tributaries; Pagosa 

 Springs ; Calhan ; Rabbit-Ear Pass ; Los Pinos ; Black Canon ; La Veta ; Dillon ; 

 Valley Spur; west of Ouray; Baxter's ranch; Chambers' Lake; Walton 

 Creek ; Table Rock ; Dolores ; gulch west of Soldier Canon. 



