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CCDB → Angiosperms → Cleomaceae → Peritoma → Isomeris arborea Nutt.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Isomeris arborea Nutt. | Peritoma arborea (Nutt.) Iltis | 20 | IPCN online | Parfitt, B. D., M. A. Baker & M. L. Gallagher. 1985. Chromosome Number Reports LXXXVI. Taxon 34: 159–164. | |||
| Isomeris arborea Nutt. | Peritoma arborea (Nutt.) Iltis | 34? | Fedorov, 1974 | Billings 1937 | |||
| Isomeris arborea Nutt. | Peritoma arborea (Nutt.) Iltis | 40 | Fedorov, 1974 | Snow 1959 | |||
| ! | Isomeris arborea Nutt. | Peritoma arborea (Nutt.) Iltis | 34? | Darlington, 1955 | |||
| Isomeris arborea Nutt. | Peritoma arborea (Nutt.) Iltis | 20 | Cave1959 | Snow 1959 |