10 



kind. Bouteloua oligostachya, called here black grama, is the most 

 abundant species of grass. In the valley Buchloe dactyloides (Buffalo- 

 grass) is also common, and Agropyrum glaucum is seen occasionally, 

 while on the hill-tops a species of Mulilenbergia is quite common, to- 

 gether with a small proportion of Hilaria Jamesii. Very few species 

 were found in a condition for herbarium specimens, as the grasses here 

 make no growth until the August rains fall, when they are said to make 

 a rapid and abundant growth until snow comes, and then remain dry 

 until the next year. Ice an eighth of an inch thick formed here last 

 night, June 19. 



The grasses noted here were the following : 

 Scliedonnardus Texanus. 



Only occasionally seen here, but at Chaves, 30 miles east of 

 here, it is one of the most common species along the railroad. 

 Sporobolus depauperaius f 



Quite common in the valley, and closely grazed. All the plants 

 observed were affected with a fungus. 



Poa Bigelovii. 



Occasionally seen in the valley. 

 Agropyrum glaucum. (Blue stem.) 



Somewhat common, but not eaten when grama (Bouteloua oli- 

 gostachya) is to be had. 

 Ely m us Sitanion. 



Common, but not plentiful. 

 Oryzopsis micrantha. 



Not rare on the top of the mesa. 

 A n dropogon scoparius. 



Rare. 

 Bromus ciliatus, var. 



Occasionally found on the side of the mesa. 



Poa Bigelovii. 



Bather common on the top of the mesa. 

 Sporobolus cryptandrus. 



Common on the mesa. 



Koeleria cristata. 



Occasionally found on the mesa. 



Spo robolus t r icholep is . 



Common on the mesa. 



Winslow, Arizona, June 23. 



From Coolidge to this point the railroad follows the valley, which in 

 the wet season is the course of the Little Colorado River, but which is 

 now almost dry, water being seen at but two points. The country is 



