Apomixis in the interspecific triploid hybrid fern Cornopteris christenseniana (Woodsiaceae)

@article{Park2003ApomixisIT,
  title={Apomixis in the interspecific triploid hybrid fern Cornopteris christenseniana (Woodsiaceae)},
  author={Chan-Ho Park and Masahiro Kato},
  journal={Journal of Plant Research},
  year={2003},
  volume={116},
  pages={93-103}
}
Cornopteris christenseniana is a "sterile" interspecific triploid hybrid of diploid C. crenulatoserrulata and tetraploid C. decurrenti-alata. Morphological and cytological studies show that, of 41 young plants of Cornopteris that have been propagated naturally in the Fern Garden of the Botanical Gardens, University of Tokyo, 30 plants are the sterile C. christenseniana, 10 are fertile C. decurrenti-alata and 1, fertile C. crenulatoserrulata. This proportion supports the view that the young… 
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TLDR
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Triploidy in Equisetum subgenus Hippochaete (Equisetaceae, Pteridophyta).
TLDR
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