Volume 44 



December 1944 



Number 3 



TORREYA 



EDITED FOR 



THE TORREY BOTANICAL CLUB 



BY 



HAROLD H. CLUM 



CONTENTS 



Inactivation of Incompatibilities in Tetraploid Progenies 



of Petunia axillaris A. B. Stout 45 



On the Shoot Apex of the Cycads Marion A. Johnson 52 



New Plant Records for the Niagara Frontier Irving W. Knobloch 59 



Observations on the Distribution of some Aquatic 



Plants in Guatemala W. C. Muenscher 61 



Damage to Trees in New York City in the Hurricane 



of September 14, 1944 Arthur Harmount Graves 66 



Notes on Spergularia Myron Arthur Rice 74 



Proceedings of the Club 76 



News Notes 78 



Index to Torreya, Volume 44 79 



Published fob the Club 



By the Free Press Printing Company 

 187 College Street, Burlington, Vermont 



Entered as second class matter at the post office at Burlington, Vermont, 

 October 14, 1939, under the Act of March 3, 1879 



