;CCDB is a community resource. If you are aware of any missing data or if any of the counts are erroneous please submit it to mailto:evolseq@tauex.tau.ac.il
>Corylus americana
6
>Corylus avellana
10
>Corylus avellana var. pontica
14
>Corylus colurna
9
>Corylus cornuta
6
>Corylus cornuta subsp. californica
11
>Corylus ferox
11
>Corylus ferox var. tibetica
11
>Corylus heterophylla
11
>Corylus maxima
11
>Corylus sieboldiana
11
>Corylus × colurnoides
11