-43- 



S. paludosus Nels. Bayonet-grass 



var. atlanticus Fern. 

 Common; upper border of salt marsh. MJM 528 . 



ARACEAE (Arum Family) 



ACORUS L. 



A. calamus L. Sweet Flag 



Occasional; in ditch along road at southern end of 

 island. Ahles 77530 [MASS]. 



ARISAEMA Mart. 



A. atrorubens (Ait.) Blume Jack-in-the-pulpit 



Rare; Grape Island, in open damp area near Fraxinus 

 pennsylvanica stand. MJM 744 . 



LEMNACEAE (Duckweed Family) 



LEMNA L. 



L. minor L. 



Duckweed 



Frequent; locally abundant in North Pool. MJM 452 

 XYRIDACEAE (Yellow-Eyed Grass Family) 



XYRIS L. 



X. torta Sm. Yellow-eyed Grass 



Occasional; cranberry swales between dunes. MJM 653 , 

 753. 



