Pryer, K.M. 1999: Phylogeny of marsileaceous ferns and relationship of the fossil Hydropteris pinnata reconsidered. International Journal of Plant Sciences 160: 931–954.
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Pryer, K.M. 1999: Phylogeny of marsileaceous ferns and relationship of the fossil Hydropteris pinnata reconsidered. International Journal of Plant Sciences 160: 931–954. |