Dicksoniaceae


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Dicksoniaceae

[‚dik·sə·nē′ās·ē‚ē]
(botany)
A family of tree ferns characterized by marginal sori which are terminal on the veins and protected by a bivalved indusium.
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Representatives of tree fern families such as Cyatheaceae and Dicksoniaceae, and forest taxa including Gleicheniaceae, Hymenophyllaceae and Osmundaceae have been important components of the forest understory in New Zealand since at least the late Eocene and possibly since the late Cretaceous (Mildenhall, 1980; Cieraad & Lee, 2006).
The three outgroup taxa, Calochlaena villosa, Dicksonia antarctica, and Lophosoria quadripinnata, belong to the Dicksoniaceae as circumscribed by Smith et al.
Two previously unreported families include Davalliaceae and Dicksoniaceae, and three previously unreported genera include Davallia (Davalliaceae), Dicksonia (Dicksoniaceae), and Pyrrosia (Polypodiaceae).