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NZ Plants
Hypolepis distans
Family: Dennstaedtiaceae
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Frond
I MacDonald
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Frond upper surface, midrib (rachis) with leaflets
I MacDonald
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Frond upper surface, rachis with leaflets
L Jensen
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Rachis hair detail
L Jensen
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Frond lower surface, leaflets with sori
L Jensen
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Sori with marginal flaps
L Jensen
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Hypolepis distans has a long-creeping horizontal stem (rhizome) bearing harsh, almost hairless long and narrow fronds with leaflets arising at wide angles. Because of the weak stems of the fronds, this fern often forms tangled mounds.
Found throughout New Zealand usually in exposed swampy areas and on peat.
Vegetative characteristics |
Fertile frond and sporangia |
|---|---|
Plant form: creeping rhizome with fronds up to 600 mm in length |
Frond appearance: similar to sterile fronds |
Frond stalk, midrib: hairs sparse |
Sporangium location: lower frond surface |
Frond shape: narow elliptic |
Sporangium position: leaflet margin |
Frond blade: 3-pinnate at base (divided up to 3x into leaflets or pinnae) |
Sporangia distribution: in groups (sori) |
Frond surface: hairs sparse |
Sorus shape: round to oval |
Leaflets: toothed margins with veins ending in margin indentations; attached along leaflet base (adnate) |
Sorus covering: reflexed marginal flap |
