Tham khảo Thực_vật_có_mạch

  1. D. Edwards; Feehan, J. (1980). “Records of Cooksonia-type sporangia from late Wenlock strata in Ireland”. Nature 287 (5777): 41–42. doi:10.1038/287041a0
  2. Kenrick Paul & Peter R. Crane. 1997. The Origin and Early Diversification of Land Plants: A Cladistic Study. (Washington D.C., Nhà in Viện Smithsonian). ISBN 1-56098-730-8.
  3. Smith Alan R., Kathleen M. Pryer, E. Schuettpelz, P. Korall, H. Schneider, & Paul G. Wolf. (2006). "A classification for extant ferns". Taxon 55(3): 705-731.
  4. Robbins W.W., Weier T.E. và ctv., Botany:Plant Science, Ấn bản lần thứ ba, Wiley International, New York, 1965.

Tài liệu tham khảo

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