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CCDB → Angiosperms → Rosaceae → Crataegus → Crataegus holmesiana Ashe
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Crataegus holmesiana Ashe | Crataegus holmesiana Ashe | 34 | 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. |