246 GEOLOGICAL SURVEY OF NEW JERSEY. 



Mickleton B. Heritage. Camden : Little Timber Creek 

 Martindale ; Haddonfield J. L. Penny packer. Burlington : 

 Moorestown J. Stokes. Monmouth : Not common Knies- 

 kern. Mercer: Trenton Apgar. Union: Plainfield Tweedy; 

 and frequent in swamps in the northern counties. 



ZYGADENUS, Michx. 



Zygadenus. 

 Z. leimanthoides, Gray. 



In low grounds. Ocean and Monmouth : Rather rare 

 Knieskern ; Mt. Pleasant R. W. Brown ; Toms River 

 Parker. Mercer : Princeton Junction Peters. Burlington : 

 Near Atsion Parker. Camden : Griffith's Swamp C. E. 

 Smith. 



AMIANTHIUM, Gray. 



Fly Poison. 



A. muscsetoxicum (Walt.), Gray. 



In low meadows. Bergen : Abundant in Saddle River 

 township near Arcola Wool son ; Rochelle Station Leggett. 

 Mercer : Torrey. Burlington : In woods near Burlington, 

 1844 Cooley in Torrey Herb. ; Pemberton Miss Willmarth ; 

 Moorestown J. Stokes ; Beverly Apgar. Camden : Meadows 

 near Camden Parker. Cumberland: Vineland Mrs. Treat. 

 Gloucester : One mile west of Mickleton B. Heritage. 



PONTEDERIACEJE. 



PONTEDERIA, L. 

 Pickerel- weed . 



P. cordata, L. 



Frequent in shallow water throughout the State. 



Var. angustifolia, Pursh. 



Morris: Southern end of Green Pond Rudkin. Burling- 

 ton: Quaker Bridge Martindale; Atsion C. D. Fretz, 

 Gloucester : Franklin Parker. 



