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Rai, Hardeep S.; Graham, Sean W. (2010). «Utility of a large, multigene plastid data set in inferring higher-order relationships in ferns and relatives (monilophytes)». American Journal of Botany. 97 (9): 1444–1456. PMID21616899. doi:10.3732/ajb.0900305, p. 1450
Hardeep S. Rai; Sean W. Graham (2010). «Utility of a large, multigene plastid data set in inferring higher-order relationships in ferns and relatives (Monilophytes)». American Journal of Botany. 97 (9): 1444–1456. PMID21616899. doi:10.3732/ajb.0900305
Palmer, Jeffrey (2004), «The Plant Tree of Life: an Overview and Some Points of View», American Journal of Botany, 91 (10): 1437–45, PMID21652302, doi:10.3732/ajb.91.10.1437
Schuettpelz et al 2018. Schuettpelz, Eric; Rouhan, Germinal; Pryer, Kathleen M.; Rothfels, Carl J.; Prado, Jefferson; Sundue, Michael A.; Windham, Michael D.; Moran, Robbin C.; Smith, Alan R. (1 Junho 2018). «Are there too many fern genera?». Taxon. 67 (3): 473–480. doi:10.12705/673.1
Shukla, Anoop Kumar; Upadhyay, Santosh Kumar; Mishra, Manisha; et al. (26 outubro 2016). «Expression of an insecticidal fern protein in cotton protects against whitefly». Nature Biotechnology. 34 (10): 1046–1051. PMID27598229. doi:10.1038/nbt.3665
Rai, Hardeep S.; Graham, Sean W. (2010). «Utility of a large, multigene plastid data set in inferring higher-order relationships in ferns and relatives (monilophytes)». American Journal of Botany. 97 (9): 1444–1456. PMID21616899. doi:10.3732/ajb.0900305, p. 1450
Hardeep S. Rai; Sean W. Graham (2010). «Utility of a large, multigene plastid data set in inferring higher-order relationships in ferns and relatives (Monilophytes)». American Journal of Botany. 97 (9): 1444–1456. PMID21616899. doi:10.3732/ajb.0900305
Palmer, Jeffrey (2004), «The Plant Tree of Life: an Overview and Some Points of View», American Journal of Botany, 91 (10): 1437–45, PMID21652302, doi:10.3732/ajb.91.10.1437
Shukla, Anoop Kumar; Upadhyay, Santosh Kumar; Mishra, Manisha; et al. (26 outubro 2016). «Expression of an insecticidal fern protein in cotton protects against whitefly». Nature Biotechnology. 34 (10): 1046–1051. PMID27598229. doi:10.1038/nbt.3665