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NZ Plants

Deparia petersenii

Family: Athyriaceae

Deparia petersenii is a terrestrial fern with a long creeping stem (rhizome) and upright hairy and scaly yellow-green fronds. The lower surface of the thin fronds bear elongate sori in a herring-bone pattern along the veins.
Found in open, moist lowland forest especially in disturbed places. Indigenous but also widespread throughout the Pacific and Asia.

Vegetative characteristics

Fertile frond and sporangia

Plant form: terrestrial, creeping rhizome with fronds up to 500 mm

Frond appearance: similar to sterile frond

Frond stalk, midrib: scales, hairs

Sporangium location: lower frond surface

Frond shape: oval

Sporangium position: along one side of a leaflet vein

Frond blade: 2-pinnate (divided 2x into leaflets or pinnae)

Sporangia distribution: in groups (sori)

Frond surface: hairs

Sorus shape: elongate

Leaflets: oblong, round-ended with lobed or toothed margins

Sorus covering: elongated, free edge toothed