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CCDB → Pteridophytes → Cystopteridaceae → Cystopteris → Cystopteris protrusa (Weath.) Blasdell
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Cystopteris protrusa (Weath.) Blasdell | Cystopteris protrusa (Weath.) Blasdell | 42II | IPCN online | Haufler, C. H., M. D. Windham & T. A. Ranker. 1990. Biosystematic analysis of the Cystopteris tennesseensis (Dryopteridaceae) complex. Ann. Missouri Bot. Gard. 77(2): 314–329. | |||
| Cystopteris protrusa (Weath.) Blasdell | Cystopteris protrusa (Weath.) Blasdell | "42, 63" | IPCN online | Haufler, C. H., M. D. Windham, D. M. Britton & S. J. Robinson. 1985. Triploidy and its evolutionary significance in Cystopteris protrusa. Canad. J. Bot. 63: 1855–1863. | |||
| Cystopteris protrusa (Weath.) Blasdell | Cystopteris protrusa (Weath.) Blasdell | 42 | IPCN online | Haufler, C. H. & D. E. Soltis. 1986. Genetic evidence suggests that homosporous ferns with high chromosome numbers are diploid. Proc. Natl. Acad. Sci. U.S.A. 83: 4389–4393. | |||
| Cystopteris protrusa (Weath.) Blasdell | Cystopteris protrusa (Weath.) Blasdell | 42 | IPCN online | Reeves, T. 1978. In IOPB chromosome number reports LIX. Taxon 27: 53–61. | |||
| Cystopteris protrusa (Weath.) Blasdell | Cystopteris protrusa (Weath.) Blasdell | 42 | IPCN75-78 | Reeves 1978 | |||
| ! | Cystopteris protrusa (Weath.) Blasdell | Cystopteris protrusa (Weath.) Blasdell | 84 | Love, 1977 | Wagner & Hagenah 1956b | ||
| ! | Cystopteris protrusa (Weath.) Blasdell | Cystopteris protrusa (Weath.) Blasdell | 84 | Love, 1977 | Blasdell 1963 | ||
| ! | Cystopteris protrusa (Weath.) Blasdell | Cystopteris protrusa (Weath.) Blasdell | 84 | Love, 1977 | Wagner, Farrar & McAlpin 1970 | ||
| ! | Cystopteris protrusa (Weath.) Blasdell | Cystopteris protrusa (Weath.) Blasdell | 84 | Love, 1977 | Vida 1974 | ||
| ! | Cystopteris protrusa (Weath.) Blasdell | Cystopteris protrusa (Weath.) Blasdell | 42 | IPCN73-74 | VIDA, G. 1974. Genome analysis of the European Cystopteris fragilis complex. I. Tetraploid taxa. Acta Bot. Acad. Sci. Hung. 20: 181 192 | ||
| ! | Cystopteris protrusa (Weath.) Blasdell | Cystopteris protrusa (Weath.) Blasdell | 84 | eFlora | |||
| ! | Cystopteris fragilis var. protrusa Weath. | Cystopteris protrusa (Weath.) Blasdell | 42 | Cave1956 | Wagner & Hagenah | ||
| ! | Cystopteris protrusa (Weath.) Blasdell | Cystopteris protrusa (Weath.) Blasdell | 42 | Cave1963 | Blasdell 1963 |