THE AMERICAN BOTANIST 89 



lAO.Gutierrezia ndcrocephala Gray. One of the chief 

 plants of the desert in many places. Has the aspect of a gold- 

 enrod, and forms clumps like No. 142. 



142. Chrysothaninus Greenei Gray. This and No. 140 

 cover the desert for miles. 



144. Briogoniim cernuum Nutt. Abundant on the 

 range. This collected at Walpi. 



145. Monarda Nuttallii A. Nels. Walpi. 



147. Mimroa squarrosa (Nutt.) Torr. var. Lanata. 

 This cottony grass very common in many parts of the range. 



148. Croton texensis (Klotsch) Muell. Croton. Wild 

 doves feed on this plant's seeds in the fall. Antelope Springs. 



149. Tribiilns terrestris L. Keams Canyon along road- 

 sides. 



150. Buploca convoh'iilacca Nutt. A Boraginaceous 

 plant. Very common for long distances on the plains, the 

 flowers resembling those of the mountain laurel but very thin 

 as if made of tissue paper. 



151. Charnacsaracha c or o no pus (Dunal) Gray. Weed 

 from Walpi. 



152. A(i(>seris parriflontiu (Nutt.) Greene. War God. 



