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Location: Arboretum. 

 Betula pendula Mandschurica. Manchurian White Birch. 



Location: Arboretum. 



Natural distribution : Manchuria. 

 Betula pendula var. Tauschii. Japanese White Birch. 



Location: Arboretum. 



Natural distribution: Japan. 

 Betula populifolia. Gray Birch. 



Location: Arboretum. Along path, north end of Herbaceous 

 Grounds. Wild: along woodland borders, or more rarely 

 in the woods. 



Alnus. Alder 

 Alnus alnobetula. Mountain Alder. 



Location: Fruticetum. 



Natural distribution : North Temperate Regions. 

 Alnus Alnus (Alnus glutinosa). European Alder. 



Location: Arboretum. 



Natural distribution: Europe. 

 Alnus cordata. Heart-leaved Alder. 



Location: Arboretum. 



Natural distribution : Corsica and southern Italy. 

 Alnus elliptica. Corsican Alder. 



Location : Arboretum. 



Natural distribution : Corsica. 

 Alnus incana. Hoary Alder. 



Location: Arboretum. 



Natural distribution : North temperate regions. 

 Alnus japonica. Japanese Alder. 



Location: Arboretum. 



Natural distribution: Japan. 

 Alnus rugosa. Smooth Alder. 



Location: Fruticetum. Along path east of Museum. Wild: 

 common in low places and along lakes and streams. 



Natural distribution: Eastern United States. 

 Alnus subcordata. Caucasian Alder. 



Location : Arboretum. 



Natural distribution : Caucasus and northern Persia. 



