Literature
  • Gastony GJ, Ungerer MC. 1997
  • Molecular systematics and a revised taxonomy of the onocleoid ferns (Dryopteridaceae: Onocleeae).
  • Grusz AL, Windham MD. 2013
  • Toward a monophyletic Cheilanthes: The resurrection and recircumscription of Myriopteris (Pteridaceae).
  • Guillon JM. 2007
  • Molecular phylogeny of horsetails (Equisetum) including chloroplast atpB sequences.