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NZ Plants

Leptopteris hymenophylloides - heruheru, single crape fern

Family: Osmundaceae

  • Frond

    L Jensen

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  • Frond upper surface, midrib (rachis) with leaflets

    L Jensen

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  • Leaflets, upper surface

    L Jensen

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  • Rachis upper surface, hairs

    L Jensen

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  • Rachis hair detail

    L Jensen

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  • Fdrtile frond, lower surface with sporangia

    L Jensen

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  • Leaflets lower surface, scattered sporangia (not grouped into sori)

    L Jensen

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  • Leaflet lower surface, sporangia are not in groups but scattered

    L Jensen

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  • Leaflet lower surface, sporangia and hairs

    L Jensen

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Leptopteris hymenophylloides has a short erect stem bearing delicate, translucent, dark to pale-green almost triangular and sparsely hairy, fronds. The ultimate leaflets are flattened in one plane. Sporangia are scattered on the frond lower surface rather than in groups.
An endemic species found throughout New Zealand in damp lowland to montane forest.
 

Vegetative characteristics

Fertile frond and sporangia

Plant form: erect stem bearing fronds up to 150 cm

Frond appearance: similar to sterile frond

Frond stalk, midrib: stipe pale brown, sparsely hairy

Sporangium location: lower frond surface

Frond shape: elliptical to triangular

Sporangium position: scattered

Frond blade: 3-pinnate (divided 3x into leaflets or pinnae)s

Sporangia distribution: not in groups (sori)

Frond surface: sparsely hairy

Sorus shape: 0

Leaflets: linear, flattened in one plane   

Sorus covering: 0

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