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CCDB → Angiosperms → Caprifoliaceae → Pterocephalus → Pterocephalus depressus Coss. & Balansa
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Pterocephalus depressus Coss. & Balansa | Pterocephalus depressus Coss. & Balansa | 9 | 18 | IPCN online | Verlaque, R. 1982. In IOPB chromosome number reports LXXVII. Taxon 31: 770–771. | |
| ! | Pterocephalus depressus Coss. & Balansa | Pterocephalus depressus Coss. & Balansa | 18 | IPCN online | Verlaque, R. 1986. étude biosystématique et phylogénétique des Dipsacaceae IV. Tribu des Scabioseae (phylum no. 1, 2, 3). Rev. Cytol. Biol. Vég., Bot. 9: 5–72. |