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CCDB → Angiosperms → Rubiaceae → Kohautia → Oldenlandia aspera (B. Heyne) DC.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Oldenlandia aspera (B. Heyne) DC. | Kohautia aspera (B. Heyne) Bremek. | 9 | IPCN65 | Baquar et al. 1965 | ||
| ! | Oldenlandia aspera (B. Heyne) DC. | Kohautia aspera (B. Heyne) Bremek. | 11 | IPCN online | Sanjappa, M. 1979a. In IOPB chromosome number reports LXIV. Taxon 28: 393–395. | ||
| ! | Oldenlandia aspera (B. Heyne) DC. | Kohautia aspera (B. Heyne) Bremek. | 18 | Kumar, 1987 | Baquar, S.R. et al. 1965 | ||
| ! | Oldenlandia aspera (B. Heyne) DC. | Kohautia aspera (B. Heyne) Bremek. | 22 | Kumar, 1987 | Sanjappa, M. & Sathyananda, N. 1979 | ||
| ! | Oldenlandia aspera (B. Heyne) DC. | Kohautia aspera (B. Heyne) Bremek. | 36 | Kumar, 1987 | Raghavan, T.S. & Rangaswamy, K. 1941 | ||
| ! | Oldenlandia aspera (B. Heyne) DC. | Kohautia aspera (B. Heyne) Bremek. | 36 | Darlington, 1955 | Raghavan & R. '41 |