369 



Vaeeinium corymbosum, only one specimen of which was seen. The prin- 

 cipal species of the association are as follows: 

 *Thuya occidentalis. 

 *Taxus canadensis. 

 *Alnus incana. 



Po'pulus deltoides. 

 *Populus tremuloides. 



Rhus vernix. 



Rhus cotinus. 



Rhus glabra. 



Lindera benzoin. s 



Ribes Cynosbati. 



Rubus idaeus. 

 *Rubus trifiorus. 

 * Vaeeinium corymbosum. 



Cornus paniculata. 



Cornus alternifolia. 



Acer rubrum 



Pyrus arbutifolia. 



Ampatiens biflora. 



Laportea canadensis. 



Asclepias incarnata. 



Caltha palustris. 



Symplocarpus foetidus. 



Cypripedium parviflorus. 



Cypripedium hirsutum. 



Aralia racemosa. 



Polygonatum biflorum. 



Dioscorea villosa. 



Polymnia canadensis. 



Mitchella repens. 



Anemonella thalictroides. 



Anemone quinquefolia. 



Pedicularis laneeolata. 



Polemonium reptans. 



Uvalaria perfoliata. 



Mitella diphylla. 



50 4 — 24 



