V iNTRonn iMox. 



This publication is intcmlt'd niiiinly to aswist high scliool stu- 

 dents and local collectors in the study of jdant lile, by «lirccting 

 their efforts and onlartfing tlicir resources. 



The herbariums representint; lliis section are esorc-ially line, 

 each containing" I'roni the hiuidietl to twelve liiindred specimens. 

 They ai-e in Grand Kapids unless otherwise s)iecit;ed. Hesides my 

 own herbarium, the following have been consulted: 



The collections of Leon J. Cole; CharlcB W. Fallass, Petos- 

 key, Mich.; Mrs. Mary B. Fallass; Hermann W. Hyser, Plaintield 

 Village, Mich.; Burton E. Livingston; 8. Owen Livingston; W. 

 Karle Mulliken; ?drs. Hattie M. liuiley Pieters, Washington, D. C; 

 •Our llerl>ariinn." by Homer C. Sk(!els and Miss Jennie Shaddick; 

 also the George D. Sones Collection, now the property of the Kent 

 Scientific Institute. 



The following publications have been consulted: 



Michigan Flora, Dr. W.J. Bealand Prof. C. F. Wheeler, 1893; 

 Catalogue of Flowering Plants of the Southern Peninsula of Mich- 

 igan, N. Coleman, 1874; Michigan: — Its Resources, 18y2-'93. 



Most grateful acknowledgements are due to Prof. C. F. Wheeler 

 of the Michigan Agricultural College, to whom all doubtful spe- 

 cimens, as well as the entire collection of carices and jiotamogetons 

 have been submitted. His kindly assistance and unabating inter- 

 est have been great incentives in the preparation of this work. Dr. 

 B. L. Robinson and his assistant, Mr. M. L. Fernald, of Harvard 

 University, have given valuable suggestions. Mr. Luther S. Liv- 

 ingston of New York City, has kindly read the proof throughout. 



Thanks are also due to the members of the Grand Rapids Botani- 

 cal Club, especially to Miss Jennie Shaddick, Homer C. Skeels, W. 

 Earle Mulliken, and S. Owen Livingston. Their united energies 

 as collectors and students have made this publication possible. 

 Homer C. Skeels prepared the accompanying map of the district. 



Miss Annah M. Clark, Mr. Luther S. Livingston, and Prof. 

 Robert II. Wolcott of Nebraska University, have given data from 

 their observations made prior to niv own work. Miss Ellen Dean, 



