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NZ Plants
Pteris comans - coastal brake, netted brake
Family: Pteridaceae
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Frond with main stem (rachis) and primary and secondary leaflets (pinnae)
L Jensen
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Frond stalk (stipe) with scales
L Jensen
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Rachis with hairs
L Jensen
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Hair detail
L Jensen
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Primary leaflet with midrib bearing secondary leaflets, upper surface
L Jensen
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Sterile leaflet, upper surface
L Jensen
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Primary leaflet with glands on the midrib at base of secondary leaflets
L Jensen
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Detail of a gland
L Jensen
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Scales on midrib
L Jensen
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Fertile leaflets, marginal sori
L Jensen
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Marginal sporangia
L Jensen
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Pteris comans is a terrestrial fern with a short, erect stem. Fronds are oval, leathery and divided with overlapping leaflets with a conspicuous net (joined) venation.
Found on northern offshore islands and in coastal areas on the upper half of the North Island
Vegetative characteristics |
Fertile frond and sporangia |
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Plant form: short erect stems with fronds up to 1.8 m in length |
Frond appearance: similar to sterile frond |
Frond stalk, midrib: brown, with scales at base; midrib with scales |
Sporangium location: on lower frond surface |
Frond shape: oval |
Sporangium position: leaflet margin |
Frond blade: 2-3-pinnate (divided 2-3x into leaflets or pinnae) |
Sporangia distribution: in groups (sori) |
Frond surface: glossy, leathery, |
Sorus shape: linear, continuous |
Leaflets: oblong, tapering to a bluntly pointed tip with toothed margins |
Sorus covering: inrolled leaflet margin |
