30 UNIVERSITY OF MISSOURI STUDIES [178 



Cheilanthes Feei Edwinia Americana 



C. Fendleri Ribes Purpusi 



Asplenium Trichomanes R. pumilum 



A. Andrewsii Oreobatus deliciosus 



Belvisia septentrionalis Rosa melina 



Selaginella Underwoodii Amelanchier oreophila 



Sabina scopulorum Xylophacos Parryi 



Parietaria Pennsylvanica Androsace puberulenta 



Talinum parviflorum A. pinetorum 



Physaria didymocarpa Coleosanthns minor 



P. floribunda C. albicaulis 



Sedum stenopetalum Chrysopsis caudata 



Heuchera bracteata Senecio Nelsonii 



Micranthes rhomboidea S. longipetiolatus 



D. MONTANAE 



The Montane Flora begins at about the 8,000 foot level, 

 though, as we have seen, on the isolated peaks of the first 

 range of foot-hills the Foot-hill Flora still largely persists even 

 to the summits, or some 600 feet higher. The Montane Flora 

 extends upward to the approximate altitude of 10,000 feet. 

 It is for the most part a forest of lodgepole pine. The zone 

 includes the slopes of the main range below 10,000 feet, and 

 also the higher portions of the adjacent mountain plateau. 

 Some of its characteristic species, indeed, tend to spread 

 throughout the mountain plateau, and in cold valleys may 

 even go as low as 6,000 feet. The montane as also the 

 subalpine slopes have abundant rainfall, showers occur- 

 ring nearly every afternoon. At least this was true of the sum- 

 mer of 1906. The ground is often boggy and springy, and 

 cold with snow water. On north and east slopes the snow 

 remains in the higher and deeper valleys till midsummer; 



