42 



Hilarla mutica. 



This occurs in all the valleys of western Texas ; often in gravelly 

 soil near the creeks ; not rare on the slopes of the lower ridges. 

 On the low prairie at Toyah Creek I noticed it, in some places 

 forming large patches of itself, though generally mixed with 

 other grasses. 

 Hilaria cenchroides. 



This was seen in two localities ; on the high prairie near Marfa-- 

 several plants mixed with some of the Gramas ; and on one of 

 the lower mesas on the south side of the Ohenates. 

 Tragus racemosus. 



Near Fort Davis, on the high prairie, I saw several plants of this 

 scattered about ; also in several places along Limpia Creek 

 north of the fort. It seems to be thoroughly naturalized. 

 Imperata Hoolceri. 



This was seen only in one locality ; by the side of Medero Creek, 

 30 miles south of Marfa. 

 Elionurus candidus. 



Frequent in many places on the craggy slopes. It seemed es- 

 pecially abundant in the Limpia region and in the neighbor- 

 hood of Musquis. I found it at several points at Paisano and 

 in the Chenate region, and on some of the hills near Medero 

 Creek. 

 Heieropogon contortus. 



Common on all the craggy slopes of the mountains. 

 Andropogon cirrhatus and Andropogon Mrtiflorus. . 



Both of these are common in the Limpia region on the craggy 

 slopes. 

 Andropogon saccharoides. 



Often seen at the base of the lower ridges. More common on 

 gravelly soil near the creeks. 



^Andropogon Hallii. 



Seen only at the Sand Hills. A few large clumps here and there 

 among the other herbage. 



Chrysopogon nutans. 



Seen at Musquis in one locality growing in clumps near the 

 creek. Also seen in one other locality ; a few scattered plants 

 at an arroya near Cibilo Creek. 

 Sorghum halepense. 



At Musquis Canon I saw a few plants growing by the side of 

 the creek. Cultivated at Fort Davis and at El Paso. 



Aristida bromoides. 



Frequently seen near the borders of creeks and at the base of a 

 ridge. 



