Asplenium ruprechtii

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Asplenium ruprechtii
Asplenium ruprechtii 157695993.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Polypodiales
Suborder: Aspleniineae
Family: Aspleniaceae
Genus: Asplenium
Species:
A. ruprechtii
Binomial name
Asplenium ruprechtii
Synonyms
  • Antigramma sibirica(Rupr.) J.Sm.
  • Camptosorus sibiricusRupr.
  • Phyllitis sibirica(Rupr.) Kuntze
  • Scolopendrium sibiricum(Rupr.) Hook.

Asplenium ruprechtii, which goes by the common name Asian walking fern, is a rare, hardy, low-lying fern native to East Asia. It is a close relative of Asplenium rhizophyllum [1] (syn: Camptosorus rhizophyllus [1] ) which is found in North America and also goes by the common name of walking fern. [2] The species should not be confused with Asplenium sibiricum which is a synonym of Diplazium sibiricum .

Contents

Description

The name walking fern was derived from the way the fern spreads. The underside of each leaf contain sori, and when the tip of the leaf touches the ground, new planlets sprout, creating a "walking" effect.

The evergreen, undivided, slightly leathery leaves are triangular and taper to a thin point. Sori, the spore-bearing structures, are distributed in clusters along the veins on the underside of the leaves. The plant can be found in the shady areas of limestone ledges and in limy forest places. Asplenium ruprechtii is smaller than its relative, Asplenium rhizophyllum, and usually has cuneate bases to its fronds, whereas A. rhizophyllum usually has cordate frond bases.

Taxonomy

A global phylogeny of Asplenium published in 2020 divided the genus into eleven clades, [3] which were given informal names pending further taxonomic study. A. ruprechtii belongs to the "A. cordatum subclade" of the "Schaffneria clade". [4] The Schaffneria clade has a worldwide distribution, and members vary widely in form and habitat. [5] There is no clear morphological feature that unites the A. cordatum subclade; the sister species of A. ruprechtii is A. rhizophyllum, which shares an undivided leaf blade and a proliferating tip, while the other three species are scaly spleenworts of dry habitats in Africa and the Middle East. [6]

Related Research Articles

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<i>Asplenium scolopendrium</i> Species of fern in the family Aspleniaceae

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<i>Asplenium rhizophyllum</i> Species of fern in the family Aspleniaceae

Asplenium rhizophyllum, the (American) walking fern, is a frequently-occurring fern native to North America. It is a close relative of Asplenium ruprechtii which is found in East Asia and also goes by the common name of "walking fern".

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<i>Asplenium septentrionale</i> Species of fern in the family Aspleniaceae

Asplenium septentrionale is a species of fern known by the common names northern spleenwort and forked spleenwort. It is native to Europe, Asia and western North America, where it grows on rocks. Its long, slender leaves give it a distinctive appearance. Three subspecies exist, corresponding to a tetraploid and a diploid cytotype and their triploid hybrid.

<i>Asplenium vespertinum</i> Species of fern in the family Aspleniaceae

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<i>Asplenium australasicum</i> Species of fern in the family Aspleniaceae

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<i>Asplenium antiquum</i> Species of fern in the family Aspleniaceae

Asplenium antiquum is a fern of the group known as bird's-nest ferns. In Japanese it is known by ō-tani-watari and tani-watari. It grows on cliffs, in dark forests, and on tree trunks in China, Japan, Korea, and Taiwan. It is classified as an endangered species in both South Korea and Japan.

<i>Asplenium ruta-muraria</i> Species of fern in the family Aspleniaceae

Asplenium ruta-muraria is a species of fern commonly known as wall-rue. It is a very small epipetric species, growing exclusively on limestone and other calcareous rocks. Its fronds are bluish-green and are heavily sub-divided, becoming up to 12 cm in length.

<i>Asplenium daucifolium</i> Species of fern in the family Aspleniaceae

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<i>Asplenium anceps</i> Species of fern in the family Aspleniaceae

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<i>Asplenium viride</i> Species of fern in the family Aspleniaceae

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<i>Asplenium oblongifolium</i> Species of fern in the family Aspleniaceae

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<i>Asplenium difforme</i> Species of fern in the family Aspleniaceae

Asplenium difforme is a plant in the spleenwort group of ferns. Its habitat is cracks in rocky headlands beside the sea. It is found in eastern Australia and Norfolk Island. Its fronds are thick and waxy to protect it from sea spray.

<i>Asplenium appendiculatum</i> Species of fern

Asplenium appendiculatum, ground spleenwort, is a common native fern to Australia and New Zealand. It usually grows in cool damp conditions, among rocks, on logs or as an epiphyte.

<i>Asplenium fontanum</i> Species of fern native to Europe, the fountain spleenwort

Asplenium fontanum, commonly known as fountain spleenwort or smooth rock spleenwort, is a species of fern in the family Aspleniaceae, native to rocky areas in Western Europe.

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References

  1. 1 2 Wagner, Warren H. Jr.; Moran, Robbin C.; Werth, Charles R. (1993). "Asplenium rhizophyllum". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico. Vol. 2: Pteridophytes and Gymnosperms. New York and Oxford: Oxford University Press. Retrieved 2007-11-21.
  2. Encyclopædia Britannica Online
  3. Xu et al. 2020, p. 27.
  4. Xu et al. 2020, p. 36.
  5. Xu et al. 2020, p. 42.
  6. Xu et al. 2020, pp. 43–44.

Sources