369 
Vaccinium corymbosum, only one specimen of which was seen. The prin- 
cipal species of the association are as follows: 
*Thuya occidentalis. 
*Taxus canadensis. 
*Alnus ineana. 
Populus deltoides. 
*Populus tremuloides. 
Rhus vernix. 
Rhus cotinus. 
Rhus glabra. 
Lindera benzoin. 
Ribes Cynosbatti. 
Rubus idaeus. 
*Rubus triflorus. 
*Vaccinium corymbosum. 
Cornus paniculata. 
Cornus alternifolia. 
Acer rubrum 
Pyrus arbutifolia. 
Ampatiens biflora. 
Laportea canadensis. 
Asclepias incarnata. 
Caltha palustris. 
Symploearpus foetidus. 
Cypripedium parviflorus. 
Cypripedium hirsutum. 
Aralia racemosa. 
Polygonatum biflorum. 
Dioscorea villosa. 
Polymnia canadensis. 
Mitchella repens. 
Anemonella thalietroides. 
Anemone quinquefolia. 
Pedicularis lanceolata. 
Polemonium reptans. 
Uvalaria perfoliata. 
Mitella diphylla. 
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