-67- 



Abundant; dominant tree species in forest behind 

 backdune ridge. MJM 353. 



P. virginiana L. Choke Cherry 



Occasional; throughout backdune, in shrub thickets. MJM 

 261, 354. 



PYRUS L. 



P. aucupar ia (L.) Gaertn. European Mountain Ash 



Occasional; one large tree in upland area of Hellcat 

 Swamp, west side of road and in thickets at southern tip 

 of island. MJM 633. 



P arbutifolia (L.) L. f. Red Chokeberry 



Frequent; wet swales in dunes and thickets at southern 

 end of island. MJM 802, 1022, 1057. 



P. communis L. Pear 



Cultivated; persistent on Grape Island. MJM 1262 . 



P. f lor ibunda Lindl. Purple Chokeberry 



Occasional, wet swales in dunes. MJM 596, 802b. 



P. malus L. Apple 



Cultivated; persistent at southern end of island and on 

 Stage Island. MJM 1030, 1221. 



P. melanocarpa (Michx.) Willd. Black Chokeberry 



Occasional; shrub thickets at southern end of island, 

 particularly around Stage Island Pool. MJM 1381. 



P. prunifolia Willd. Crab Apple 



Cultivated; persistent at southern end of island. MJM 

 452a. 



