APPENDIX. 



PLANTS recently introduced into cultivation, or which 

 have not come under the personal observation of the 

 author. 



Abies alba. 



Abies dumosa. 



Abies gigantea. 



Abies Menziesii. 



Abies obovata. 



Acer circinatum. 



Acer obtusatum. 



Acer opalus. 



JEsculus hippocastanuin, double-flowered. 



JEsculus laciniatum. 



Alnus glutinosa. 



Alnus laciniata. 



Alnus serrulata. 



Amelanchier florida. 



Betula excelsa. 



Betula papyracea. 



Castanea vesca asplenifolia. 



Castanea vesca laciniata. 



Chionanthus maritiuia. 



Cornus paniculata. 



Crataegus Layi. 



