THE AMERICAN BOTANIST 103 



chard at Tuba and elsewhere. 76. 



Convolvulus arvensis L. Bindweed. This familiar weed 

 was abundant in the gardens at Tuba. - 94. 



Cusciita arvensis Bevr. Dodder. Common on the borders 

 of wet grounds, clinging to species of Xanthiiiui or other 

 weeds. 



Gillia Giiniiisoni Torr. This small species, with tiny whit- 

 ish flowers was common in the driest adobe at Tuba. It was 

 not seen elsewhere and through a desert plant, is thus included 

 here. 



Heliotropinm spathiilatiim Rydb. A single colony in an 

 abandoned field at Tuba. 96. 



Verbena hracteosa Michx. Vervain. A common weed in 

 gardens. 93. 



Mentha Penardii (Brig.) Mint. This plant, with much the 

 aspect of the field mint, (M. arvensis), to which it is near al- 

 lied, was common at Reservoir Conyon. 88. 



Lycimn pallidum (Miers), Tomatiei^a. A spiny shrub 

 common in adobe soil. Flowers greenish, resembling those of 

 its congener L. vidgare. Fruits pale red, reputed to be poi- 

 sonous but used by the Indians after proper treatment. 4. 



Androsera rostrata (Dunal.) Bufeaeo-bur. A single 

 colony at the "sheep dip." Evidently introduced. 97. 



Chamaeseracha coronopus (Dunal). Abundant in cultiva- 

 ted areas. 78. 



Datura meteloides D. C. Desert Trumpet Flower. 

 Growing about the buildings at Tuba and in many places in 

 the desert. Used by the Indians. 110. 



Solanum triflorum Nutt. Beack Nightshade. Common 

 in cultivated ground. 126. 



Mimiilus guttatus DC. This northern form was found at 

 Reservoir Canyon and seen later at Schultze's pass in the San 



