The Plant World 



A Monthly Magazine of General Botany 

 Established 1897 



Edited by 



Forrest Shreve 



Published by 



The Plant World Association 



COMPOSED OF THE FOLLOWING MEMBERS: 



JosBPH Charlss Abthub 



Purdue University 

 On* William Caldwell 



UnlverBltjr of Chicago 

 William Austin Cannon 



Desert Laboratory 

 Charles Stuart Gaobb 



Brooklyn Botanic Garden 

 Burton Edward Livinoston 



Johns Hopkins University 

 Francis Ernest Llotd 



McGUl University 



Jambs Bertram Overton 



University of Wisconsin 

 Oborge James Feircb 



Stanford University 

 Charles Louis Pollard 



Staten Island Association 

 Hbbbbrt Maulb Richards 



Columbia University 

 Forrest Shrbvb 



Desert Laboratory 

 VoLNET Morgan Spalding 



Loma Linda, California 



Daniel Trembly MacDougal John James Tbornbeb 



Carnegie Institution of Washington University of Arizona 



Edgar Nelson Transeau 



Eastern Illinois Normal School 



All manuscripts submitted for publication should be type-written and in good 

 order. Galley proof is submitted to the author, who should return it as early aa 

 possible to the Editor. Reprints should be ordered on a blank for that purpose 

 which accompanies the galley proofs. 



Reprints will be supplied at the following rates: 





WITHOUT COVBB8 



WITH COVERS 



First 100 



Additional 100 



First 100 



Additional 100 



Four pages 



$2.68 



$0.72 



$4.68 



$1.72 





4.32 



1.20 



6.32 



2.20 





4. go 



2.00 



6.80 



3.00 



Express or postage is extra. 



Advertising rates will be furnished on application. 



Address all correspondence regarding contributions and reprints, and all 

 books for review to The Editor, The Plant World, Tucson, Arizona. 



The subscription price is $2.50 per annum in the United States, its overseas 

 dependencies, and Canada and Mexico; $3.00 to other countries. Single copies 

 less than twelve months old, 20 cents; single copies more than twelve months old, 

 30 cents. Volumes 8 to 14 inclusive can be supplied at $2.00 each, carriage paid. 



Missing numbers lost in the mails will be replaced gratis only when notice 

 is received within one month of date of issue. 



Make all remittances payable to The Plant World. Address all correspond* 

 ence regarding subscriptions, discontinuances, changes of address, back num« 

 bers and early volumes to: The Waverly Press, 2419-21 York Road, Baltimore, 

 Md., or to The Plant World, Tucson, Arizona. 



