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CCDB → Angiosperms → Compositae → Porophyllum → Porophyllum gracile Benth.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Porophyllum gracile Benth. | Porophyllum gracile Benth. | 24(1) | Asteracea | Raven & K. 1961 Amer. J. Bot. | |||
| ! | Porophyllum ochroleucum Rydb. | Porophyllum gracile Benth. | 12(1) | Asteracea | Turner et al. 1973 Amer. J. Bot. | ||
| Porophyllum gracile Benth. | Porophyllum gracile Benth. | 48 | IPCN online | Zhao, Z. 1996. Documented chromosome numbers 1996:2. Miscellaneous U. S. A. and Mexican species, mostly Asteraceae. Sida 17(1): 259–263. | |||
| Porophyllum gracile Benth. | Porophyllum gracile Benth. | 24 | IPCN online | Pinkava, D. J. & D. J. Keil. 1977. Chromosome counts of Compositae from the United States and Mexico. Amer. J. Bot. 64: 680–686. | |||
| Porophyllum gracile Benth. | Porophyllum gracile Benth. | 24 | IPCN online | Pinkava, D. J., D. J. Keil & L. A. McGILL. 1976. In IOPB chromosome number reports LIII. Taxon 25: 483–500. | |||
| Porophyllum gracile Benth. | Porophyllum gracile Benth. | 24 | IPCN73-74 | JOHNSON, R.R. 1969. Monograph of the plant genus Porophyllum (Compositae: Helenieael Univ.~Kansas Sci. Bull. 48: 225 267. | |||
| Porophyllum ochroleucum Rydb. | Porophyllum gracile Benth. | 12 | IPCN73-74 | TURNER, B.L;, A.M. POWELL, & T.J. WATSON, JR. 1973. Chromosome numbers in Asteraceae. Amer. J. Bot. 60: 592-596. | |||
| ! | Porophyllum gracile Benth. | Porophyllum gracile Benth. | 48 | eFlora | |||
| Porophyllum gracile Benth. | Porophyllum gracile Benth. | 48 | Fedorov, 1974 | Raven, Kyhos 1961 |