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CCDB → Angiosperms → Poaceae → Panicum → Panicum portoricense Desv. ex Ham.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Panicum tsugetorum Nash | Panicum portoricense Desv. ex Ham. | 9 | IPCN67-71 | SPELLENBERG, R. 1970. In IOPB chromosome number reports xxv. Taxon 19: 102-113. | |||
| ! | Panicum lancearum Trin. ex Nees | Panicum portoricense Desv. ex Ham. | 18 | Fedorov, 1974 | Brown W. V. 1948 |