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CCDB → Pteridophytes → Ophioglossaceae → Ophioglossum → Ophioglossum gramineum Willd.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Ophioglossum gramineum Willd. | Ophioglossum lusitanicum subsp. coriaceum (A. Cunn.) R. T. Clausen | 108, 116, 120, 212 | IPCN online | Khandelwal, S. 1990. Chromosome evolution in the genus Ophioglossum L. Bot. J. Linn. Soc. 102(3): 205–217. | |||
| Ophioglossum gramineum Willd. | Ophioglossum lusitanicum subsp. coriaceum (A. Cunn.) R. T. Clausen | c.720 | IPCN online | Obermayer, R., I. J. Leitch, L. Hanson & M. D. Bennett. 2002. Nuclear DNA C-values in 30 species double the familial representation in pteridophytes. Ann. Bot. (Oxford) 90: 209–217. | |||
| ! | Ophioglossum gramineum Willd. | Ophioglossum lusitanicum subsp. coriaceum (A. Cunn.) R. T. Clausen | c.240 | Love, 1977 | Ninan 1958a |