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FOC | Family List | FOC Vol. 2-3 | Dryopteridaceae | Dryopteris

8. Dryopteris cyclopeltidiformis C. Christensen, Dansk Bot. Ark. 9: 60. 1937.

弯羽鳞毛蕨 wan yu lin mao jue

Plants ca. 40 cm tall. Rhizome widely creeping, scaly; scales brownish, subulate. Fronds caespitose; stipe dark brown, 15-20 cm × ca. 3 mm, slightly glossy with brownish and lanceolate scales and setae; lamina ovate-lanceolate, 20-25 × 8-9 cm, once pinnate, base not or slightly narrowed, apex acuminate; pinnae 10 or 11 pairs, oblique, falcate, 3-5 × ca. 1 cm, margin incised-dentate above, entire and slightly auriculate at base, apex acute; pinna stalks ca. 2 mm, basal pinnae sometimes shorter than others and slightly retroflexed. Lamina thinly to thickly papery, subglabrous on both surfaces; rachis clothed with linear, dark brown or brownish black, nodose, broad-based scales; veins pinnate, inconspicuous on both surfaces. Sori in 1 row on both sides of costa, indusiate but indusia small and falling off earlier, with rounded, stalked, peltate paraphyses.

Dense forests, wet ravines; 1100-1200 m. Hainan [Vietnam].

Dryopteris cyclopeltidiformis appears quite unusual in the genus as it differs from other species in having nodose setae on the stipe and rachis and sori with peltate paraphyses. The taxonomic position of this species needs further research.


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