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NZ Plants
Asplenium appendiculatum subsp. maritimum - coastal spleenwort
Spleenwort family: Aspleniaceae
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Plant
L Jensen
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Frond
L Jensen
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Frond upper surface, midrib (rachis) with leaflets
I MacDonald
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Frond, midrib (rachis)
L Jensen
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Frond midrib scales
L Jensen
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Frond midrib scale detail
L Jensen
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Frond midrib scale detail
L Jensen
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Fertile frond lower surface, rachis with leaflets
I MacDonald
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Leaflet with sori
L Jensen
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Sori with indusium covering partially covering unopened sporangia
L Jensen
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Sori with open sporangia releasing spores
L Jensen
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Asplenium appendiculatum subspecies maritimum is a terrestrial fern with a short erect stem and thick, dark green and fleshy fronds.
Formerly Asplenium terrestre.
Found in coastal regions throughout New Zealand.
Vegetative characteristics |
Fertile frond and sporangia
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| Plant form: short, erect rhizome with fronds up to 450 mm in length | Frond appearance: similar to sterile frond |
| Frond stalk,midrib: scales narrowly triangular with filamentous tips |
Sporangium location: on lower frond surface |
| Frond shape: elliptic | Sporangium position: close to leaflet margin |
| Frond blade: 2-3-pinnate (divided up to 3x into leaflets or pinnae) | Sporangia distribution: in groups (sori) |
Frond surface: dull, leathery |
Sorus shape: linear |
| Leaflets: elliptic to ovate with long undivided tips | Sorus covering: linear covering (indusium) opening toward midrib |
