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 hippocastanum, double-flowered. 



jEsculus laciniatum. 



Alnus glutinosa. 



Alnus laciniata. 



Alnus serrulata. 



Amelanchier florida. 



Betula excelsa. 



Betula papyracea. 



Castanea vesca asplenifolia. 



Castanea vesca laciniata. 



Chionanthus maritima. 



Cornus paniculata. 



Crataegus Layi. 



