As the value of such a list depends entirely upon the 

 authenticity of the identifications, it should be stated at the 

 outset that there are very few species whose identification rests 

 solely on the authority of the writer. The grasses collected the 

 first year or so were all carefully compared with specimens in 

 the herbarium of Rev. A. B. Langlois, which had been named by 

 Prof. Vasey of the United States Department of Agriculture. 

 A few were submitted to the late Dr. Mohr, of Mobile, and 

 compared by him with specimens in his collection determined 

 by various experts, while for the past two or three years the 

 writer has been sending species, especially of Panicum, to Dr. 



A. S. Hitchcock, of the United States Department of Agricul- 

 ture, to whom and to his assistant, Mrs. Chase, the writer de- 

 sires to express his most grateful thanks for their most courte- 

 ous and ready assistance not only in determining very many 

 species, but in clearing up very many perplexities of nomen- 

 clature and other difficulties. 



Unless expressly stated to the contrary, the grasses of this 

 catalogue are in the herbarium of the writer and were collected 

 by him personally. Those that remain, between twenty and 

 thirty in number, are included on the authority of the Rev. A. 



B. Langlois, as published in his catalogue, "Provisoire de 

 Planteis de la Basse — Louisiana, 1887," on the authority of Dr. 

 Chas. Mohr, in his "Flora of Alabama," of Prof. Small in his 

 "Flora of the Southern States," and of Dr. A. S. Hitchcock 

 and of Dr. Lamson ScribDer, in various monographs on certain 

 families published )>y the United States Department of Agri- 

 culture. 



In this list reference has not been given to every pub- 

 lished description and figure of the species, but the writer has 

 selected the four publications in which ean be found descriptions 

 and figures of most of them. These are Britton & Brown, "Illus- 

 Small Flora of the Southeastern United States; Beale Manual 

 of Grasses of North America, and American Grasses, Vols. 

 I and IT, published by the United States Department of 

 Agriculture. 



No previous attempt has been made to publish a com- 

 plete list of the grasses of the State, for the early floral cata- 

 logue of Riddell, Hale & Carpenter did not include grasses, 



