The Memoirs of The New York Botanical Garden 

 are issued at irregular intervals in parts of various 

 sizes. Approximately 500 pages will complete a vol- 

 ume. The subscription price of volume 9 is $10. 

 Number 1 may be purchased separately for $2.50. 

 Authors of papers may obtain separate copies of their 

 contributions, printed at the same time as the issue, 

 at cost price. 



For further information address the editor: 



H. W. RlCKETT 



The New York Botanical Garden 

 New York 58, N. Y. 



