volume LAVU Number 5 



THE Botanical Gazette 



A MONTHLY JOURNAL EMBRACING ALL DEPARTMENTS OF 



BOTANICAL SCIENCE 



EDITED BY 



JOHN M. COULTER 



With the assistance of other members of the botanical staff of the 



University of Chicago 



Issued May 19, 1919 



The Botanical Gazette is published monthly by the University of Chicago at the University 

 Press, 5750 Ellis Avenue, Chicago, HI. HThe subscription price is $7.00 per year; the price of 

 single copies is 75 cents. Orders for service of less than a half-year will be charged at the 

 single-copy rate. ^[Postage is prepaid by the publishers on all orders from the United States, 

 Mexico, Cuba, Porto Rico, Panama Canal Zone, Republic of Panama, Hawaiian Islands, Phihppine 

 Islands, Guam, Samoan Islands, Shanghai. IfPostage is charged extra as follows: For Canada, 

 35 cents on annual subscriptions (total $7 -35), on single copies, 3 cents (total 78 cents); for all 

 other countries in the Postal Union, 84 cents on annual subscriptions (total $7.84),*on single 

 copies II cents (total 86 cents). If Patrons are requested to make all remittances payable to 

 The University of Chicago Press in postal or express money orders or bank drafts. 



The following are authorized to quote the prices indicated: 



For the British Empire: The Cambridge University Press, Fetter Lane, London, E.C. 4. 



Yearly subscriptions, including postage, £1 125. 6d. each; single copies, including postage, 



35. 6d. each. 



For Japan and Korea: The Maruzen-Kabushiki-Kaisha, 11 to 16 Nihonbashi Tori 



Sanchome, Tokyo, Japan. Yearly subscriptions, including postage, Yen 15.75 each; single 



copies, including postage. Yen i . 75 each. 



For China: The Mission Book Company, 18 Peking Road, Shanghai. Yearly sub- 

 scriptions, $7.00; single copies, 75 cents, or their equivalents in Chinese money. Postage 



extra, if mailed direct outside of Shanghai, on yearly subscriptions 84 cents, on single copies 



II cents. 



Claims for missing numbers should be made within the month following the regular month 

 of pubUcation. The pubUshers expect to supply missing numbers free only when losses have 

 been sustained in transit and when the reserve stock will permit. DeKveries^ are not guaranteed 

 within the war zones of Europe, nor in other countries where transportation is disturbed by con- 

 ditions incident to war. 



Business correspondence should be addressed to The University of Chicago Press, 

 Chicago, lU. 



Communications for the editor and manuscripts should be addressed to the Editor of the 

 Botanical Gazette, The University of Chicago, Chicago, 111. 



Contributors are requested to write scientific and proper names with particular care, to use 

 the metric system of weights and measures, and in citations to foUow the form shown in the 

 pages of the Botanical Gazette. 



Papers in excess of thirty-two printed pages are not accepted imless the author is wilL'ng 

 to pay the cost of the additional pages, in which case the number of the pages in the volume is 

 correspondingly increased. 



Illustrations are furnished without cost to author only when suitable originals are supphed. 

 A copy of the suggestions made in the January number, 1907, will be sent on application. It is 

 advisable to confer with the editors as to illustrations required in any article to be ofiFered. 



Separates, if desired, must be ordered in advance of pubUcation. A table showing approxi- 

 mate cost of separates is printed on an order blank which accompanies the proof; a copy will 

 be sent on request. 



Entered as second-class matter August 21, 1896, at the Post-Office at Chicago, Illinois, under the Act of March 3, 1879. 

 Acceptance for mailing at special rate of postage provided for in Section 1103, Act of October 3, 1917, authorized on 

 July IS, 1918. 



