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V * ^ 



THIRD " ANNUAL REPORT 



OF 



Botanical Survey of Southwest and Northwest Louisiana, 



MADE DURING THE YEAR 1871, 

 By PROFESSOl! A. PEATHERMAN. 



Louisiana State Uuiversity, 



January 7, 1872. 



Colonel D. K. !'•■ y 1. Superintendent of Louisiana State University: 

 OBJECT AND EXTENT OF THE SURVEY. 



In accordance with the intention of the law enacted by the Legis- 

 lature, authorizing the survey of the State for the purpose of ascer- 

 taining the physical resources of Louisiana in an economical as well 

 as scientific point of view, I herewith submit to you the third annual 

 report of the Botanical Survey, comprising Southwest and North- 

 west Louisiana, regions of country which have probably never before 

 been botanically explored. As a great number of plants growing 

 during the summer months were collected last year, I deemed it 

 indispensably necessary to make an excursion during the spring 

 to enable me to fill the deficiency of early flowers, of which our 

 supply was but limited as regards locality, for Baton Rouge and 

 vicinity were the only parts of the State that had been explored 

 during the spring season. I therefore visited late in April the 

 prairie regions of St. Landry and Calcasieu, the extensive pine flats 

 of Calcasieu, and the pine hills of South Rapides, and I was fully 

 compensated for the difficulty I encountered in the almost impass- 

 able roads, by the collection of a spring ilora of great interest, and 

 a number of specimens of rare occurrence elsewhere. 



On my trip in northwest Louisiana during the summer months I 

 passed through the parishes of Caldwell, Ouachita, Morehouse, Union, 



