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CCDB → Angiosperms → Brassicaceae → Megadenia → Megadenia pygmaea Maxim.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Megadenia bardunovii Popov | Megadenia pygmaea Maxim. | 20 | IAPT/IOPB | IAPT/IOPB Chromosome Data 6 | |||
| ! | Megadenia speluncarum Vorob. & Vorosch. & Gorovij | Megadenia pygmaea Maxim. | 12 | IPCN online | Volkova, S. A., D. D. Basargin & P. G. Gorovoy. 1994. Chromosome numbers in representatives of some families of the flora of Russian Far East. Bot. Žhurn. (Moscow & Leningrad) 79(6): 122–123. | ||
| ! | Megadenia speluncarum Vorob. & Vorosch. & Gorovij | Megadenia pygmaea Maxim. | 20 | IPCN online | Rudyka, E. G. 1995. Chromosome numbers in vascular plants from the southern part of the Russian Far East. Bot. Žhurn. (Moscow & Leningrad) 80(2): 87–90. | ||
| ! | Megadenia pygmaea Maxim. | Megadenia pygmaea Maxim. | 20 | eFlora | |||
| ! | Megadenia pygmaea Maxim. | Megadenia pygmaea Maxim. | 12 | Warwick, 2006 | Volkova et al. | ||
| ! | Megadenia pygmaea Maxim. | Megadenia pygmaea Maxim. | 20 | Warwick, 2006 | Rudyka |