DIVISION EIGHT — SCIENCE. 607 



Besides the above, several works describing plants of other regions are 

 useful. Among them are Burrill & Earle's Parasitic Fungi of Illinois, 

 Rabenhorst's Cryptogamic Flora of Germany, Austria and Switzerland, 

 Massee's British Fungus-Flora, Cooke's British Fungi, Berkeley's Outlines 

 of Mycology, Phillip's Discomycetes, Farlow's Marine Algae of New 

 England, Greene's Flora Franciscana, Greene's Manual of the Bay Region, 

 Gray's Manual of Botany, Coulter's Rocky Mountain Botany, Chapman's 

 Flora of the Southern States, Coulter's Flora of Texas, Wood's Class-book 

 of Botany, and the Flora of Nebraska by the Botanical Seminar of the 

 State University. 



Several plant catalogues of other regions aid much in classification and 

 nomenclature. Among these are Britton's Flora of New Jersey, Wheeler 

 & Smith's Flora of Michigan, Webber's Flora of Nebraska, McMillan's 

 Metaspermae of Minnesota. Millspaugh's Flora of West Virginia, and the 

 Pteridophyta and Spermophyta of the Northeastern United States by the 

 Botanical Club of the Am. Assoc, for Advct. of Sci. 



All plants of doubtful identity have have been sent to specialists for 

 determination, as follows : Perisporiacese and Pyrenomycetes to J. H- 

 Ellis, Newfield, N. J. ; Discomycetes to A. P. Morgan, Preston, Ohio, J. B. 

 EUis and C. H. Peck, Albany, N. Y. ; Uchenes to T. A. Williams, Brook- 

 ing, S. D. ; Uredineae to E. W. D. Holway, Decorah, Iowa ; Imperfect 

 Fungi to J. B. Ellis ; Gastromycetes to A. P. Morgan and L. M. Under- 

 wood, Greencastle, Ind. ; Agaricineae to C. H. Peck and F. E. Clements, 

 lyincoln, Neb.; the remaining Hymenomycetes to A. P. Morgan, L,. M. 

 Underwood, and J. B. EUis ; Hepaticse to L,. M. Underwood ; Musci to C. 

 R. Barnes, Madison, Wis., Mrs. E. G. Britton, Columbia College, N. Y., 

 and M. A. Howe, Berkeley, Cal. ; Pteridophyta to L,. M. Underwood, and 

 D. C. Eaton, New Haven, Conn. ; Graminese to F. Lamson-Scribner, 

 Washington, D C. ; Carices to L,. H. Bailey, Ithaca, N. Y. ; the remaining 

 Spermaphyta to E. h. Greene, Berkeley, Cal., S. B, Parish, San Bernardino, 

 Cal., and W. L. Jepson, Berkeley, Cal. To all I am greatly indebted for 

 their aid, and wish to express to them my sincere thanks. I have also re- 

 ceived much aid from several of my students, especially Miss Dian Ha3^nes 

 and Miss Margaret Morrison. To my wife, Anna Morrison McClatchie, I 

 am especially indebted for continuous aid in collecting, identifying, drawing, 

 and caring for herbarium specimens. 



Unless impracticable, herbarium or microscopic specimens of each 

 species listed have been preserved. Duplicates of a large number of them 

 will also be found in the herbaria of those who have aided in their indenti- 

 fication. The aim has been to give the local place where all species not 

 widely distributed have been collected. 



The month or months given as the season of a plant cover the period of 

 reproduction, or when reproductive organs may be found on the plant. 



