GAJiNETT.J BOTANICAL NOTES. G77 



Creek and its south fork, crosses the Sawatch Range at Lake Creek 

 Pass, follows Pass Creek down to the Gunnison, which it crosses near 

 its head ; thence it follows up Spirifer Creek, crosses to Taylor River, 

 then up Deadman's Gulch, crosses the divide to Cement Creek, and fol- 

 lows Cement Creek down to its moath. At East River it forks, one 

 branch going southerly down E'ast River and the Gunnison to the Los 

 Pinos agency; the other up East River to its head, where it crosses to 

 Rock Creek, and, generally speaking, it follows Rock Creek down to 

 the Grand River. This is one of the principal Indian trails in the Ter- 

 ritory. 



BOTANICAL NOTES. 



Quercus alba, L., var. Gunnisoni. Torr., scrub-oak. — The only oak in 

 Colorado, and of little value. Grows 6 to 10 feet high. 



Fopulus balsaminifera, L., var. Candicans, Gr., cottonwood. — Occurs at 

 middle elevation. Is the only poplar that can be used for timber. 



Piiius iwnderosa, DougL, yellow pine. — Grows 70 to 100 feet high. 

 Common through all the lower slopes. Is a most valuable timber- tree. 



Fimis flexilis, James. — Found on the divide between South Park and 

 the Arkansas Valley, (Park Range.) 



Finns eduUs, Eng., piQon or native pine= — Found near Colorado Springs 

 and Twin Lakes. 



Abies Engelmanni, Parry, white pine. — A magnificent tree, growing 60 

 to 100 feet high, with a straight, even trunk, and of rapid growth. 

 Wood is remarkably white and soft. This species is closely allied to 

 the black spruce f Abies nigt^aj of the East. Found on the mountain- 

 elopes of the Elk and Sawatch Ranges. 



Bucliloe dactyloides, Eug., buftalo-grass. — One of the most nutritious 

 grasses. Is the common pasturage on the plains and in South Park. 



Poa alpina, L., and FJileum alpinum, L. — The best of mountain-grasses, 

 growing far up on the mountains. 



Triticum repens, L., blue-joint.— Found along the Platte and around 

 Weston's Pass. 



Poa serotina, Elroh., false red-top. — A good grass. Found in moist 

 meadows, even nearly to the timber-line. 



Eordeum, wild barley. — Found about Colorado Springs and in South 

 Park. 



Mymus, wild rye. — Found around Colorado Springs and Twin Lakes. 



Dauthornia, wild-oat-grass. — Found at Ute Pass and along the South 

 Platte. 



Avena, wild-oats. — Found in Middle and South Parks. 



Caltha leptosepala, D. C. — Very abundant in all sub-alpine swamps. 



Linuni perenne, L., flax. — Abundant throughout the district at all 

 elevations. 



Trifolium, clover. — Occurs in comparative abundance ; mainly at high 

 altitudes. 



Ruhus trifiorus, Richards, raspberry. — Occurs in canons at middle 

 elevations. 



Ribes aureum, Parsh, currant. — Occurs in South Park. 



Valeriana edtilis, Nutt. — Abundant in Clear Creek Caiion and about 

 Twin Lakes. 



Eurotia lanata, Mog., winter-fat, or white sage. — Found around Col- 

 orado Springs and Caiion City. 



Sunmlus lupulus, L., common hop. — Found along the South Platte 

 and in the caiions about Snow-Mass Mountain. 



