Adiantum fengianum Ching

Species

Pteridophytes > Polypodiales > Pteridaceae > Vittarioideae > Adiantum

Characteristics

Plants ca. 10 cm tall. Rhizomes decumbent, slender, scales dense, dark brown. Fronds approximate; stipe dark castaneous, glossy, 3-6 cm, as slender as silk, smooth above base; lamina 2-pinnate, narrowly ovate to lanceolate in outline, 3-5 × 1-2 cm, apex obtuse; pinnae 4 or 5 each side, horizontally or obliquely spreading; rachises, costae, and stalks same as stipe; pinnae below middle only, ± uniform in size, imparipinnate, narrowly ovate in outline, 1-1.5 × ca. 0.8 cm; pinnules alternate, with short, slender stalks, spreading obliquely upward, uniformly obtriangular, ca. 4 mm, progressively slightly smaller distally, herbaceous, green, both surfaces glabrous, sterile pinnules: base symmetrically cuneate, bilateral margins straight and entire, upper margins divided and sharply serrate, apex rounded, fertile pinnules with apex truncate or with few sharp serrations on bilateral acroscopic corner; veins multidichotomously forked and reaching margins, visible on both surfaces. Sori 1 per pinnule, horizontally attached at upper margin; false indusia glaucous or dark brown, elongate, nearly as wide as upper margin of pinnule, membranous, upper margins truncate or slightly undulate, persistent. Perispore indistinctly granular.
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Growth form herb
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Foliage retention deciduous
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Mature height (meter) 0.1
Root system rhizome
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Edible -
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Cultivation

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Distribution

Adiantum fengianum world distribution map, present in China

Conservation status

Adiantum fengianum threat status: Endangered

Identifiers

LSID urn:lsid:ipni.org:names:17367980-1
WFO ID wfo-0001122293
COL ID 653HF
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Adiantum fengianum