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NZ Plants


Pteris comans - coastal brake, netted brake

Family: Pteridaceae

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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

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