Christella dentata

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Christella dentata
Christella dentata Chatswood West.jpg
Christella dentata at Chatswood West, Australia
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Polypodiales
Suborder: Aspleniineae
Family: Thelypteridaceae
Genus: Christella
Species:
C. dentata
Binomial name
Christella dentata
(Forssk.) Brownsey & Jermy
Synonyms

Cyclosorus nymphalis(G.Forst.) Ching

Christella dentata is a small fern with widespread distribution in Australia and islands in the south Pacific Ocean. There are many local common names. In New South Wales it grows north from the southern Illawarra region and is known as binung.

Found on the margins of rainforest, by streams or in more open forests with adequate moisture. Sori are circular in shape, [1] with a hairy closed covering.

It was the first species of fern to become naturalised on the Hawaiian Islands, recorded initially in Oahu in 1887 and now found on all major islands there. [2] There it interbreeds with the local species C. cyatheoides , with the resultant hybrid offspring sterile. [3]

Christella dentata is an edible fern, [4] and also a folk remedy for skin diseases. [5] Pharmacological study found that water extract of the fern was as toxic as anticancer drug 5-fluorouracil against human chronic myelogenous leukemia cell line (K562). [6]

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<i>Christella</i> Genus of ferns

Christella is a genus of around 70-80 species of ferns in the subfamily Thelypteridoideae of the family Thelypteridaceae in the Pteridophyte Phylogeny Group classification of 2016. Other sources sink Christella into a very broadly defined genus Thelypteris. The genus was named after Konrad H. Christ, a Swiss botanist. The distribution of these plants is mostly in the tropics and sub tropical areas. An Australian example is C. dentata.

<i>Cyclosorus interruptus</i> Species of fern

Cyclosorus interruptus, the Hottentot fern or swamp shield-fern, is a fern in the family Thelypteridaceae. It is native to the tropics and subtropics in many parts of the world. In the New World, it is found from Mexico to Argentina, and in the Antilles. In the Old World, it is found in India, China, Malaysia, Sri Lanka and South Africa. It is also found in Australia, New Zealand, Hawaii and other islands in the Pacific Ocean. The various populations differ with respect to genetic cytotypes, glands, pubescence, and frond size. Its habitat is the vicinity of freshwater swamps and it may reach 1 m in height.

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Ophioglossum petiolatum is a species of fern in the family Ophioglossaceae. William Jackson Hooker named this species in 1823.

References

  1. "Christella dentata". PlantNET - NSW Flora Online. Retrieved 2010-05-17.
  2. Brownsey, Pat; Perrie, Leon (2016). "Re-evaluation of the taxonomic status of Christella dentata (Thelypteridaceae) supports recognition of one species in New Zealand". Tuhinga: The Records of the Museum of New Zealand te Papa Tongarewa. 27: 51.
  3. Daniel Dooley Palmer (2003). Hawaiʻi's ferns and fern allies. University of Hawaii Press. p. 85. ISBN   0-8248-2522-5.
  4. Kumar M, Ramesh M, Sequiera S. Medicinal pteridophytes of Kerala, South India. Indian Fern J 2003; 20: 1-28.
  5. Kumar S, Dash D. Flora of Nandan Kanan Sanctuary: Medicinal plants with their role in health care. Int J Pharm Life Sci 2012; 3(4): 1631-1642.
  6. Chai TT, Yeoh LY, Mohd Ismail NI, Ong HC, Wong FC (2015) Cytotoxicity and antiglucosidase potential of six selected edible and medicinal ferns. Acta Poloniae Pharmaceutica - Drug Research. 72(2): 397-401.