APPENDIX. 



The trees, shrubs and evergreen flowering plants growing 

 without cultivation in Worcester County. 



Coptis trifolia, Salisb. 

 Liriodendron Tulipifera, L. 

 Berberis vulgaris, L. 

 Tilia Americana, L. 

 Xanthoxylum Americanum, Mill. 

 Ilex verticillata. Gray. 



laevigata, Gray. 

 Nemopanthes fascicularis, Raf. 

 Celastrus scandens, L. 

 Rhamnus cathartica, L. 

 Ceanothus Americanus, L. 

 Vitis Labrusca, L. 



sestivalis, Michx. 



cordifolia, Michx. 



riparia, Michx. 

 Ampelopsis quinquefolia, Michx. 

 Acer Pennsylvanicum, L. 



spicatum, Lam. 



saccharinum, Wang. 



Goldthread. 



Tulip-Tree. 



Barberry. 



Basswood. 



Northern Prickly Ash. 



Black Alder. 



Smooth Winterberry. 



Mountain Holly. 



Climbing Bitter-sweet. 



Common Buckthorn. 



New Jersey Tea. 



Northern Fox-Grape. 



Summer Grape. 



Frost Grape. 



River Grape. 



Virginian Creeper. 



Striped Maple. 



Mountain " 



Rock " 



