MEMOIRS 



OF 



The New York Botanical Garden 



Vol. 9, No. 2 



Plants Collected in Ecuador by W. H. Camp. 



Gramineae Ernest K. Sobns and Jason R. Swollen 133 



Piperaceae T. G. Yuncker 147 



Umbelliferae Mildred E. Mathias and Lincoln Constance 171 



Enocaulaceae, Verbenaceae Harold N. Moldenke 175 



Revision of the Genus Sagittaria (Alismataceae) Clifford Bogin 179 



Issued 1 August 195 5 



Printed by 

 The Science Press 

 Lancaster, Pa. 



