Table 2.
Estimated specificity numbers for Maloideae genera, under the assumption that the genera are about 5 million years old
| Genus/Subfamily | Specificity number |
|---|---|
| Malus | 17 |
| Pyrus | 27 |
| Sorbus | 16 |
| Crataegus | 7 |
| Maloideae | 35 |
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