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Corylus. Hazelnut 

 Corylus americana. American Hazelnut. 



Location: Fruticetum. Economic Garden. Wild: scarce. 



Natural distribution: Eastern North America. 

 Corylus Avellana. European Hazelnut. 



Location: Fruticetum. 



Natural distribution: Temperate Old World. 

 Corylus Avellana var. atropurpurea. Purple European Hazel- 

 nut. 



Location: Fruticetum. 

 Corylus Avellana var. urticifolia. Cut-leaved European 

 Hazelnut. 



Location : Fruticetum. Economic Garden. 

 Corylus maxima var. purpurea. Purple-leaved Hazelnut. 



Location: Fruticetum. 



Natural distribution: Southern Europe. 

 Corylus pontica. Asiatic Hazelnut. 



Location: Fruticetum. 



Natural distribution: Western Asia. 

 Corylus rostrata. Beaked Hazelnut. 



Location: Fruticetum. 



Natural distribution: Northern North America. 



Betula. Birch 

 Betula alba var. ovalis. Oval Hairy White Birch. 



Location: Arboretum. 



Natural distribution: Europe and Asia. 

 Betula alba var. rhombifolia. Rhomb-leaved Hairy White 

 Birch. 



Location: Arboretum. 

 Betula alleghanensis. Southern Yellow Birch. 



Location: Arboretum. 



Natural distribution: Eastern United States. 

 Betula Andrewsii. Andrews' Birch. 



Location: Arboretum. 



Natural distribution: Colorado. 

 Betula coerulea. Blue Birch. 



