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CCDB → Angiosperms → Rosaceae → Crataegus → Crataegus heldreichii Boiss.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Crataegus heldreichii Boiss. | Crataegus heldreichii Boiss. | 34 | IPCN75-78 | Byatt & Murray 1977 |