lOf) POLYGON ACEAE. 



15. Eriogonum Tetraneuris Small. Dry mesas of Colorado. — Alt. about 5000 

 ft. — Bank of the Cimarron River; mesas near Pueblo. 



16. Eriogonum acaule Nutt. On dry hills from Wyo. and Ida. to Colo. — 

 " Soutlnvcst Colorado." 



17. Eriogonum orthocaulum Small. Dry plains and hills from Alb. and Ida. 

 to Colo, and Ncv. — Rifle, Garfield Co. 



18. Eriogonum ovalifolium Nutt. Dry plains and hills from Mont, and 

 Wash, to N. I\I. and Calif. — Alt. 6000-7000 ft. — Mancos; Grand Junction. 



19. Eriogonum ochroleucum Small. Dry rocky hills from Mont, and Ida. 

 to Colo, and Nev. — Grand Junction. 



20. Eriogonum chrysocephalum A. Gray. {E. Kingii laxifolium T. & G. ; 

 E. laxifolium A. Nels.) Dry hills and plains of Neb., Wyo., Colo, and Utah. 

 — "Southern Colorado" {Brandcgce). 



21. Eriogonum multiceps Nees. Dry plains and "bad-lands" from N. D. 

 and Mont, to Neb. and Colo. — Exact locality not given. 



22. Eriogonum coloradense Small. Mountain in Colo. — Mt. Harvard. 



23. Eriogonum pauciflorum Pursh. In sandy soil in Wyo. and Colo. — Alt. 

 up to 9000 ft.— Middle Park ; in low sandy valleys, North Park ; North Fork, 

 Larimer Co. 



24. Eriogonum campanulatum Nutt. Dry hills and plains from Neb. and 

 Wyo. to Colo, and Utah. — " Colorado " {Parry) ; Middle Park. 



25. Eriogonum brevicaule Nutt. On dry plains from Mont, to Colo, and 

 Utah. — Egeria Park; Elk River, Routt Co. 



26. Eriogonum lonchophyllum T. & G. On plains of N. M. and Colo. — 

 Durango. 



27. Eriogonum nudicaule (Torr.) Small. (£. effusiim nudicaiile Torn) 

 Plains from Kans. and Utah to Tex. — Alt. about 7500 ft. — Cimarron. 



28. Eriogonum scoparium Small. Plains of Colo, and N. M. — Alt. 5000- 

 8000 ft. — Vicinity of Gunnison; Denver; Durango; between Porter and 

 Durango. 



29. Eriogonum tristichum Small. Plains of Colo. — Alt. 5000-9000 ft. — 

 Parlin, Gunnison Co.; Mesa Verde; Arboles; Black Canon, Gunnison; 

 Durango. 



30. Eriogonum salicinum Greene. Cafion in Colo. — Alt. about 7000 ft. ; 

 known only from type locality. — Black Carions, near Gunnison. 



31. Eriogonum Fendlerianum (Benth.) Small. (£. microthecum Fendleri- 

 aniun Benth.) Dry plains of Colo, and N. M. — Alt. about 5000 ft. — Cafion 

 City; Pueblo. 



32. Eriogonum divergens Small. {E. corymbosum divaricatum Torr. ; not 

 E. divaricatum Hook.) Dry plains from Colo, to Utah and Ariz. — Green 

 River. 



33. Eriogonum corymbosum Benth. Dry plains of Colo.- — Alt. 5000-7000 ft. 

 — Along San Juan River; Grand River; Mancos. 



34. Eriogonum effusum Nutt. Dry plains from Mont, to Neb. and Colo. — 

 Alt. 4000-8000 ft. — Wahatoya Creek; Denver; Caiion City; vicinity of 

 Boulder; Morrison; Golden; Buena Vista; Manitou ; New Windsor, Weld 

 Co. ; mesas, Cucharas Valley, near La Veta ; Fort Collins ; headwaters of 

 Clear Creek and alpine ridges east of Middle Park; Salida; Fort Collins; 

 Table Rock; La Veta. 



