FloraOfNewZealand-Ferns-11-BrownseyPerrie-2015-...
The family Dicksoniaceae is represented in New Zealand by one genus (Dicksonia) with three endemic species. One species is widespread, the second occurs from Kaipara Harbour to Stewart Island, and the third is represented by two subspecies, one confined to the far north of New Zealand and the other with a disjunct distribution from Thames to the Ruahine Ranges and also in the Tararua Ranges, Marlborough Sounds and west coast of the South Island. Most species of Dicksonia are tree ferns with arborescent trunks, but one of the subspecies in New Zealand is distinguished by the lack of an upright trunk. All species of Dicksonia have highly divided fronds that bear hairs rather than scales. The sori are marginal and protected by bivalvate indusia.
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