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CCDB → Angiosperms → Rosaceae → Crataegus → Crataegus maximowiczii var. ninganensis S. Q. Nie & B. J. Jen
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Crataegus maximowiczii var. ninganensis S. Q. Nie & B. J. Jen | Crataegus maximowiczii C. K. Schneid. | 34 | IPCN online | Zhang, Y. m., X. g. Xin & J. Wang. 1986. A study on the chromosome numbers and isozymes of Crataegus plants in China. Sci. Agric. Sin. 1986(3): 37–44. | ||
| ! | Crataegus maximowiczii var. ninganensis S. Q. Nie & B. J. Jen | Crataegus maximowiczii C. K. Schneid. | 34 | IPCN online | Xin, X. g. 1991. A study on the chromosome numbers of Crataegus cultivars in China. J. Shenyang Agric. Univ. 22(1): 27–35. |