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CCDB → Angiosperms → Rosaceae → Crataegus → Crataegus macrocarpa hort.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Crataegus macrocarpa hort. | Crataegus macrocarpa hort. | 51 | IPCN online | Ptak, K. 1986. Cyto-embryological investigations on the Polish representatives of the genus Crataegus L. I. Chromosome numbers; embryology of diploid and tetraploid species. Acta Biol. Cracov., Ser. Bot. 28: 107–122. | ||
| ! | Crataegus macrocarpa hort. | Crataegus macrocarpa hort. | 68,72 | IPCN online | MUNIYAMMA, M. & J. B. Phipps. 1979. Meiosis and polyploidy in Ontario species of Crataegus in relation to their systematics. Canad. J. Genet. Cytol. 21: 231–241. | ||
| ! | Crataegus macrocarpa Hagetsch. | Crataegus macrocarpa hort. | 51 | IPCN online | Lippert. 2006. Chromosomenzahlen von Pflanzen aus Bayern und anderen Gebieten. Ber. Bayer. Bot. Ges. 76: 85–110. |