vi PREFACE. 



every case where the writer has not seen the plant, special 

 mention has been made of the fact. 



Through the courtesy of Dr. William Trelease the writer 

 has been enabled to verify almost all identifications by com- 

 parison with authentically named species in the very extensive 

 collection at the Shaw Herbarium in St. Louis. He is under 

 the greatest obligation both to Dr. Trelease, Director, and 

 Prof. M. Craig, Assistant Botanist at the Shaw Herbarium and 

 School of Botany, for every possible assistance and courtesy. 



Dr. E. L. Greene, of the Smithsonian Institution, examined 

 the species in the genus Baptisia, and pronounced two of them to 

 be undescribed. These are discussed and figured under the genus 

 Baptisia. 



In making this catalogue, each plant has been referred to 

 its description in both the Southern Manuals — Chapman's 

 Flora of the Southern United States and Small's Flora of the 

 Southern States. If the names differ in the two manuals, both 

 names are given, though the writer prefers to follow the nomen- 

 clature as laid down in the new Gray's Manual. The general 

 range of the plant in America has been given according to the 

 latest manuals, and, as far as possible, the range of the plant 

 in Louisiana, though information on this point is, in many cases, in- 

 complete. The earlier date of flowering has also been given 

 when known. Reference is also made to a figure in Britton 

 and Brown's Illustrated Flora of the Northern United States 

 wherever the plant is included in the range of this manual, 

 and it is surprising to note what a very large proportion of 

 the plants of the Family Leguminosse in Louisiana are so in- 

 cluded. In all other cases an original illustration is given. 

 These illustrations are of two kinds — photographic reproduc- 

 tions and line drawings. The photographs, with one exception, 

 were taken by Mr. George Billings, of New Orleans, and the 

 drawings were made by Miss Mary Frances Baker, also of 

 New Orleans. 



The author wishes to express his obligations to the Curator of 

 the Louisiana State Museum, Mr. Robert Glenk, for services ren- 

 dered in connection with the details of the publication of this 

 bulletin. 



REGINALD S. COCKS. 



