...Osmundaceous ferns. It is quite possible that ferns of more than one subfamily of the Polypodiaces, or, indeed, of other families, are included among...Potomac species are all to be included in the subfamily Dryopteridese, and because of this and also because their actual identity with the modern genus Dryopteris,...

...Polypodiaceae, or, indeed, of other families, are included among the various described species of Cladoplilebis. It need but be remembered how many unrelated modern...Alsophila, Asplenium, Cyathea, Dryopteris, Gleichenia, Onocled, Osmunda, Polypodium, and Pteris, to cast doubt upon the botanic affinity of Cladophlebis species...

...Comptes Rendus, vol. 150, 1910, p. 1488. included among the various described species of Cladophlebis. It need but be remembered how many unrelated modern...Cyathea, Dryopteris, Gleichenia, Onoclea, Osmunda, Pteris, Polypodium, etc., to cast doubt upon the botanical affinity of Cladophlebis species unless...

...Comptes Rendus, vol. 150, 1910, p. 1488. included among the various described species of Cladophlebis. It need but be remembered how many unrelated modern...for example certain species of Alsophila, Asplenium, Cyaihea, Dryopteris, Gleichenia, Onoclea, Osmunda, Pteris, Polypodium, etc., to cast doubt upon the...

...Comptes Rendus, vol. 150, 1910, p. 1488. included among the various described species of CladopJilebis. It need but be remembered how many unrelated modern ferns have fronds of the CladopJilebis type, as for example certain species of Alsophila, Asplenium, CyatJiea, Dryopteris, GleicJienia,...