134 NEW YORK STATE MUSEUM 



Asclepias incarnata L. 

 Stvamp milkweed 

 Swamps and wet places. Common. July- August. 



Asclepias exaltata (L.) Mulil. 

 A. phytolaccoides Pursh 

 Tall milkweed 

 Open woodlands. Common. July. 



Asclepias quadrifolia Jacq. 

 Four-leaved milkweed 

 Woods and thickets. Common. June- July. 



Asclepias syriaca L. 

 A. cornuti Dec. 

 Common milkweed. Milkweed 

 Fields and waste places. Very common. July. 



CONVOLVULACEAE 

 Ipomoea purpurea (L.) Roth 

 Morning-glory 

 Waste places. Frequent. Escapes from cultivation. 



Convolvulus sepium L. 

 Hedge hindweed 

 Thickets and fields. Abundant on the river flats. Common. 

 Summer. 



Convolvulus spithamaeus L. 



Upright hindweed 

 Rocky banks. Common. June. 



Convolvulus arvensis L. 

 Field hindweed 

 Along the railroad at Apalachin. Rare. July- August. 



CtTSCUTACEAE 



Cuscuta coryli Engelm. 



C. i n fl e X a Engelm. 



Hazel dodder 



River flats at Campville. Rare. August. It grows on hazel 



bushes. 



