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CCDB → Pteridophytes → Ophioglossaceae → Ophioglossum → Ophioglossum pycnostichum (Fernald) Á. Löve & D. Löve
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Ophioglossum pycnostichum (Fernald) Á. Löve & D. Löve | Ophioglossum vulgatum L. | ca.1260 | IPCN online | Love, A. & D. Love. 1976. In IOPB chromosome number reports LIII. Taxon 25: 483–500. | |||
| ! | Ophioglossum pycnostichum (Fernald) Á. Löve & D. Löve | Ophioglossum vulgatum L. | c.1260 | Love, 1977 | Love & Love (in Love 1976) | ||
| ! | Ophioglossum pycnostichum (Fernald) Á. Löve & D. Löve | Ophioglossum vulgatum L. | c.1320 | Love, 1977 | Wagner, Farrar & McAlpin 1970 |