NOTES ON SOME PLANTS OF THE SOUTHWESTERN 

 UNITED STATES.* 



J. B. S. Norton. 



In connection with my work in the herbarium of the 

 Missouri Botanical Garden during the past two years, a num- 

 ber of things which seemed worthy of publication came to 

 my notice concerning the plants of the Southwest. The 

 preparation for publication of the notes collected has been 

 somewhat delayed by my removal to Maryland in August, 

 1901, and some of the species have already been published by 



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'■''^ >-" <^^ yy 



MAP OF THE UNITED STATES. 



Showing extent of botanical exploration. 



others. Mr. B. F. Bush and myself have worked up together 

 the new species collected by him in Texas and southwestern 

 Missouri. Some of these will be published by him in another 

 paper. 



The accompanying map shows the comparative thorough- 

 ness with which the United States has been worked for 



* Presented by title to The Academy of Science of St. Louis, April 21, 

 1902. 



(35) 



