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NZ Plants
Dicksonia lanata - tuokura
Family: Dicksoniaceae
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Plants
L Jensen
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Frond stalks (stipes) with hairs
L Jensen
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Young frond with hairs
L Jensen
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Sterile frond upper surface, midrib (rachis) with leaflets
L Jensen
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Sterile leaflets, upper surface
L Jensen
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Sterile leaflets, lower surface with hairs
L Jensen
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Sterile leaflet, rachis hairs
L Jensen
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Rachis hairs, detail
L Jensen
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Fertile frond upper suface, rachis with leaflets
L Jensen
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Fertile leaflets, upper surface
L Jensen
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Fertile leaflet, surface - side view
L Jensen
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Fertile leaflet side view, recurved margins
L Jensen
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Fertile leaflet lower surface, sori open
L Jensen
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Dicksonia lanata is a prostrate tree fern with runners that give rise to dense colonies of plants. The frond is rough to the touch and has a densely hairy stalk (stipe) and midrib (rachis).
An endemic species found at higher elevations on the North Island where it favours damp areas near tree line and down to sea level on the South Island.
lVegetative characteristics |
Fertile frond and sporangia |
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Plant form: slender prostrate and branching trunk with fronds up to 2 m in length |
Frond appearance: leaflets ovate with inrolled margins |
Frond stalk, midrib: hairs |
Sporangium location: on lower frond surface |
Frond shape: elliptic |
Sporangium position: leaflet margin |
Frond blade: 3-4 pinnate (divided 3-4 x into leaflets or pinnae) |
Sporangia distribution: in groups (sori) |
Frond surface: harsh, leathery |
Sorus shape: circular |
Leaflets: elliptic with rounded teeth and a sharp tip |
Sorus covering: reflexed margin and indusium |
