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CCDB → Angiosperms → Compositae → Tonestus → Haplopappus lyallii A. Gray
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Haplopappus lyallii A. Gray | Tonestus lyallii (A. Gray) A. Nelson | 18 | IPCN online | Chinnappa, C. C. & J. G. Chmielewski. 1987. Documented plant chromosome numbers 1987: 1. Miscellaneous counts from western North America. Sida 12: 409–417. | |||
| Haplopappus lyallii A. Gray | Tonestus lyallii (A. Gray) A. Nelson | 18 | IPCN72 | MULLIGAN, G.A . & W.J. CODY. 1972. In IOPB chromosome number reports xxxv. Taxon 21: 161-166. | |||
| ! | Haplopappus lyallii A. Gray | Tonestus lyallii (A. Gray) A. Nelson | 18 | IPCN73-74 | KOVANDA, M. 1972. Somatic chromosome numbers for some Asteraceae. Rhodora 74: 102-116. |