THE FLORA OF THE GULF BIOLOGIC 

 STATION. 



This pai)er has two objects; first, to give as complete a cata- 

 logue as possible of all the plants growing in the vicinity of the 

 Gulf Biologic Station; and second, to record certain observa- 

 tions upon the Flora of Sonthwest Louisiana, more particularly 

 the parishes of Calcasieu and Cameron, made during the summer 

 of 1906. 



In the early part of the summer of 1903, when the Biologic 

 Station was opened, the writer visited the station for two or 

 three days and made a preliminary catalogue of the plants there 

 collected, which was published in bulletin No. 2 of the Gulf 

 Biologic Station. In the early autumn of 1906, thanks to the 

 liberality of the Board of Directors of the station, the writer was 

 enabled to revisit the station for a longer period, and to extend 

 his observations into the ad.joining parishes. As a result of 

 this second visit, the numlier of plants recorded around the sta- 

 tion was increased nearly fifty per cent. This large increase 

 in the number of plants listed, together with the fact that there 

 were several errors of determination in the first catalogue, de- 

 cided the writer not to publish this second collection as a sup- 

 plement, but to republish the catalogue as a whole, with brief 

 notes on the distribution and other points of interest in the spe- 

 cies mentioned. Great pains have been taken to make this list 

 as accurate as possible, and to that end every plant of which 

 there could be the slightest doubt was sent to one or more of the 

 large herbariums in the country to be authenticated. In this 

 connection the writer des^ires to express his most grateful thanks 

 to Dr. B. L. Robinson and Prof. H. H. Bartlet of Harvard Uni- 

 versity, who have examined very many specimens for him ; to Dr. 

 A. S. Hitchcock of the Agrostology Department of the Bureau of 

 Plant Industry at AVashington, who has examined almost all the 

 grasses collected; to Dr. E. L. Greene of the United States Na- 

 tional IMuseum ; to Prof. J. B. S. Norton of the IMaryland Col- 



