, Volume 70, Issue 1, pp 25–30 | Cite as

A second ×Cyclobotrya (Dryopteridaceae) from Brazil

  • Pedro B. Schwartsburd
  • Bianca K. Canestraro
  • Robbin C. Moran
  • Jefferson Prado
  • Alan R. Smith


× Cyclobotrya amalgamata , a new intergeneric hybrid between Cyclodium meniscioides var. meniscioides and Polybotrya osmundacea, is described and illustrated. It was found in the state of Ceará, northeastern Brazil, growing in a mixed population with both parents. It is morphologically intermediate between its parents and has misshapen sporangia and spores. It represents the second hybrid in ×Cyclobotrya.


Ceará Cyclodium ferns hybridization northeastern Brazil Polybotrya 



Schwartsburd thanks CNPq-Brazil for his Doctoral program grant (2008–2012), which paid his trip to Ceará in 2011 and made this work possible, A.J.P. Araújo for helping in the field expedition, and R. Santana for general support. The drawings were made by Reinaldo Pinto.

Literature cited

  1. Brade, A. C. 1940. Contribuição para o estudo da flora Pteridophyta da Serra de Baturité, Estado do Ceará. Rodriguésia 4: 289–302.Google Scholar
  2. Engels, M. E. & B. K. Canestraro. 2017. ×Cyclobotrya: a new hybrid genus between Cyclodium and Polybotrya (Dryopteridaceae) from the Brazilian Amazon. Brittonia: 69: 307–312.CrossRefGoogle Scholar
  3. Freitas, R. C. A. & L. Q. Matias. 2010. Situação amostral e riqueza de espécies das Angiospermas do estado do Ceará, Brasil. Acta Botanica Brasilica 24: 964–971.CrossRefGoogle Scholar
  4. Haufler, C. H. 2008. Species and speciation. Pp. 303–331. In: T. A. Ranker & C. H. Haufler (eds.). Biology and evolution of ferns and lycophytes. Cambridge University Press, Cambridge.CrossRefGoogle Scholar
  5. Kramer, K. U. & R. Viane. 1990. Aspleniaceae. Pp. 52–57. In: K. U. Kramer & P. S. Green (eds. for pteridophytes and gymnosperms), Pteridophytes and Gymnosperms. In: K. Kubitzki (general ed.). The families and genera of vascular plants, Vol. 1, Springer-Verlag, Berlin.Google Scholar
  6. Liu, H. M., X. C. Zhang, M. P. Wang, H. Shang, S. L. Zhou, Y. H. Yan, X. P. Wei, W. B. Xu & H. Schneider. 2016. Phylogenetic placement of the enigmatic fern genus Trichoneuron informs on the infra-familial relationship of Dryopteridaceae. Plant Systematics and Evolution 302: 319–332.CrossRefGoogle Scholar
  7. Moran, R. C. 1987. Monograph of the Neotropical fern genus Polybotrya (Dryopteridaceae). Illinois Natural History Survey Bulletin 34: 1–138.Google Scholar
  8. ———. 1995. Pityrogramma Link. Pp. 137–140. In: R. C. Moran & R. Riba (eds. for pteridophytes), Psilotaceae a Salviniaceae. In: G. Davdise, M. Souza & S. Knapp (general eds.). Flora Mesoamericana, Vol. 1. Universidad Nacional Autónoma de México, México City.Google Scholar
  9. ——— & P. H. Labiak. 2015. Phylogeny of the polybotryoid fern clade (Dryopteridaceae). International Journal of Plant Sciences 176: 880–891.Google Scholar
  10. Paula-Zárate, E. L., M. A. Figueiredo, I. C. L. Barros & L. H. C. Andrade. 2007. Diversidade de pteridófitas da serra de Baturité, Ceará. Pp. 163–183. In: T. S. Oliveira & F. S. Araújo (eds.). Diversidade e conservação da Biota na serra de Baturité, Ceará. Edições UFC, Fortaleza.Google Scholar
  11. Ranker, T. A. & M. A. Sundue. 2015. Why are there so few species of ferns? Trends in Plant Science 20: 402–403.CrossRefPubMedGoogle Scholar
  12. Rothfels, C. J., A. K. Johnson, P. H. Hovenkamp, D. L. Swofford, H. C. Roskam, C. R. Fraser-Jenkins, M. D. Windham & K. M. Pryer. 2015. Natural hybridization between genera that diverged from each other approximately 60 million years ago. The American Naturalist 185: 433–442.CrossRefPubMedGoogle Scholar
  13. Schwartsburd, P. B. 2014. The identity of Polypodium gyroflexum (= Pleopeltis gyroflexa, comb. nov. – Polypodiaceae). American Fern Journal 104: 16–21.CrossRefGoogle Scholar
  14. ———, C. V. Miranda & J. Prado. 2016. Oleandra (Oleandraceae) in the Brazilian Atlantic Forest. American Fern Journal 106: 191–205.Google Scholar
  15. Smith, A. R. 1986. Revision of the Neotropical fern genus Cyclodium. American Fern Journal 76: 56–98.CrossRefGoogle Scholar
  16. ——— & J. D. Tejero-Díez. 2014. Pleopeltis (Polypodiaceae), a redefinition of the genus and nomenclatural novelties. Botanical Sciences 92: 43–58.Google Scholar
  17. Sundue, M. A. & C. J. Rothfels. 2014. Stasis and convergence characterize morphological evolution in eupolypod II ferns. Annals of Botany 113: 35–54.CrossRefPubMedGoogle Scholar
  18. Wagner Jr., W. H. 1993. New species of Hawaiian pteridophytes. Contributions from the University of Michigan Herbarium 19: 63–82.Google Scholar
  19. Wagner Jr., W. H., F. S. Wagner, A. A. Reznicek & C. R. Werth. 1992. ×Dryostichum singulare (Dryopteridaceae), a new fern nothogenus from Ontario. Canadian Journal of Botany 70: 245–253.CrossRefGoogle Scholar

Copyright information

© The New York Botanical Garden 2017

Authors and Affiliations

  • Pedro B. Schwartsburd
    • 1
  • Bianca K. Canestraro
    • 2
  • Robbin C. Moran
    • 3
  • Jefferson Prado
    • 4
  • Alan R. Smith
    • 5
  1. 1.Departamento de Biologia VegetalUniversidade Federal de ViçosaViçosaBrazil
  2. 2.Juris Ambientis Consultores S/S LtdaParanáBrazil
  3. 3.The New York Botanical GardenBronxUSA
  4. 4.Instituto de Botânica, Herbário SPSão PauloBrazil
  5. 5.University Herbarium, University of CaliforniaBerkeleyUSA

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