Coryphopteris dura (Copel.) Holttum

Species

Pteridophytes > Polypodiales > Thelypteridaceae > Thelypteridoideae > Coryphopteris

Characteristics

Stipe dark near base, paler distally, 20-30 cm long, glabrous except for groove of upper part; scales 5 x 1-2 mm, acuminate. Lamina to 25 cm long; pinnae 18 pairs, rather thick; basal pinnae sessile, sometimes slightly reduced, a little narrowed at base, basal acroscopic lobe free, orbi-cular, a little dentate. Largest pinnae 4.5 x 1.1 cm, apex blunt, lobed at base to 1 mm from costa, less deeply towards apex, lobes rounded, entire except basal acroscopic ones; costules 3-3.5 mm apart; veins 3-4 pairs, slightly prominent on both sides; lower surfaces hairless apart from edges of lobes, scales on costae 2-3 cells or more wide at base; short thick hairs on upper surface of rachis and costae. Sori near costules; indusia glabrous, sometimes a little athyrioid.
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Growth form herb
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Mature height (meter) 0.2 - 0.3
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Environment

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Hardiness (USDA) 8-12

Usage

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Edible -
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Cultivation

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Distribution

Coryphopteris dura world distribution map, present in Philippines

Identifiers

LSID urn:lsid:ipni.org:names:17553040-1
WFO ID wfo-0001118239
COL ID YSNV
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Lastrea dura Coryphopteris dura Dryopteris dura