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Volume IV (1988) - Flora of New Zealand Naturalised Pteridophytes, Gymnosperms, Dicotyledons
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Cystopteris Bernh.

CYSTOPTERIS Bernh.

Terrestrial ferns. Rhizomes slender, blackish, decumbent or creeping, scaly. Fronds 2-3-pinnate, sparsely scaly, delicate, often dying down in winter; veins free. Sori round, borne on veins. Indusia ovate or hood-like, attached across the veins on basiscopic side of sori, arching over the sporangia. Spores monolete.

Key

1
Fronds 2-3-pinnate at base; apices of primary and secondary pinnae acute; longest primary pinnae > 3 cm long
1. *fragilis
Fronds 1-2-pinnate at base; apices of primary and secondary pinnae obtuse; longest primary pinnae usually < 3 cm long
2. tasmanica

c. 20 spp., mostly temperate and subtropical. Native sp. 1, naturalised 1.

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