Miscellaneous Publication 423, U. S. Dept. of Agriculture 



PLATE 28 



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8 * !%v i-' $/ W 



Palmer penstemon (Penstemon palmeri). 

 County, altitude 5,600 feet. One of the 

 with pale pink flowers. 



Near Mingus Mountain, Yavapai 

 handsomest of Arizona penstemons, 



