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NZ Plants
Parapolystichum glabellum (Lastreopsis glabella)
Family: Dryopteridaceae
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Frond
I MacDonald
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Frond stalk (stipe) with scales
L Jensen
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Frond upper surface, midrib (rachis) with leaflets
L Jensen
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Leaflets upper surface with hairs along midrib and veins
L Jensen
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Leaflet upper surface, midrib with hairs
L Jensen
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Fertile frond lower surface, rachis with leaflets
L Jensen
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Leaflets lower surface, sori
L Jensen
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Fertile leaflet lower surface, glandular hairs
L Jensen
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Leaflets with sori
L Jensen
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Sori with indusium covering unopened sporangia
L Jensen
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Lastreopsis glabella is a terrestrial fern with erect stems bearing dark green, 5-angled fronds with reddish-brown hairs on the upper surfaces of the frond axis (rachis) and leaflet veins.
An endemic species found in damp lowland or coastal forest throughout New Zealand.
Vegetative characteristics |
Fertile frond and sporangia |
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Plant form: creeping to erect stems with fronds up to 40 cm in length |
Frond appearance: similar to sterile frond |
Frond stalk, midrib: flat brown scales; reddish-brown hairs |
Sporangium location: on lower frond surface |
Frond shape: oval |
Sporangium position: to either side of vein |
Frond blade: 3-pinnate (divided 3x into leaflets or pinnae) |
Sporangia distribution: in groups (sori) |
Frond surface: hairs |
Sorus shape: circular |
Leaflets: stalked, narrow, toothed, pointed at tip |
Sorus covering: kidney-shaped |
