References
Pryer, K.M., E. Schuettpelz, P.G. Wolf, H. Schneider, A.R. Smith, and R. Cranfill. 2004. Phylogeny and evolution of ferns (monilophytes) with a focus on the early leptosporangiate divergences. Amer. J. Botany 91: 1582-1598. Google Scholar
Pryer, K.M., E. Schuettpelz, P.G. Wolf, H. Schneider, A.R. Smith, and R. Cranfill. 2004. Phylogeny and evolution of ferns (monilophytes) with a focus on the early leptosporangiate divergences. Amer. J. Botany 91: 1582-1598. Google Scholar