-_ 
9. 
RAMALEY: XEROPHYTIC GRASSLANDS IN COLORADO 
. Schneider, Edward C. The succession of plant life on gravel 
slides in the vicinity of Pike’s Peak. Colorado Coll. Publ. 
Science Ser. 12: 289-311. f. 1-6. I9g11. 
. Shantz, Homer LeRoy. A study of the vegetation of the mesa 
region east of Pike’s Peak. Bot. Gaz. 42: 16-47, 179-207. 1906. 
——_———. Natural vegetation as an indicator of the capabilities 
of land for crop production in the Great Plains area. U. S- 
Dept. Agr. Bur. Pl. Ind. Bull. 201. - ¥Orr. 
————. Plant succession on abandoned roads in eastern Col- 
orado. Jour. Ecol. 5: 19-42. f. 1-23. 10917. 
Vestal, Arthur G. Prairie vegetation of a mountain-front area 
in Colorado. Bot. Gaz. 58: 377-400. f. 1-9. 
1914 
: Foothills vegetation in the Colorado front range. 
Bot. Gaz. 64: 353-385. f. 1-8. 1917. 
