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Iron Fern

Rumohra adiantiformis (G. Forst.) Ching

Derivation of specific name

provided by Flora of Zimbabwe
adiantiformis: shaped like Adiantum; unclear reference since the fronds of the species of the genus Adiantum do not compare to Rumohra adiantiformis.
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Mark Hyde, Bart Wursten and Petra Ballings
bibliographic citation
Hyde, M.A., Wursten, B.T. and Ballings, P. (2002-2014). Rumohra adiantiformis (G. Forst.) Ching Flora of Zimbabwe website. Accessed 28 August 2014 at http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=101800
author
Mark Hyde
author
Bart Wursten
author
Petra Ballings
original
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Flora of Zimbabwe

Description

provided by Flora of Zimbabwe
Rhizome widely creeping above ground, up to 10 mm in diameter; rhizome scales up to 16 × 5.5 mm, margin entire, reddish-brown, ovate to lanceolate, hairpointed, dense. Fronds spaced, very coriacous, erect, rigid, shiny above, paler below. Stipe up to 50 cm long, matt pale brown, grooved above, set with brown ovate scales towards the base, subglabrous with age. Lamina deltate to broadly ovate in outline, basal pinnae basiscopically developed,tripinnatifid to quadripinnate, apex pinnatifid-deltate, up to 50 × 35 cm. Pinnules pinnatifid to dentate, ovate in outline, base unequally cuneate, upper surface glabrous, lower surface sparsely set with a few scales along the veins. Rhachis stramineous to brown, grooved, costae and costules scaly in young fronds. Sori round, large, usually one per lobe; indusia c. 2.2 mm in diameter, round, thick, coriaceous, peltate, glabrous, shed at maturity.
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cc-by-nc
copyright
Mark Hyde, Bart Wursten and Petra Ballings
bibliographic citation
Hyde, M.A., Wursten, B.T. and Ballings, P. (2002-2014). Rumohra adiantiformis (G. Forst.) Ching Flora of Zimbabwe website. Accessed 28 August 2014 at http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=101800
author
Mark Hyde
author
Bart Wursten
author
Petra Ballings
original
visit source
partner site
Flora of Zimbabwe

Worldwide distribution

provided by Flora of Zimbabwe
South Africa, Zimbabwe, also known from Madagascar, Comoro and Mascarene islands, Australia, New Zealand, Polynesia, South and Central America.
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cc-by-nc
copyright
Mark Hyde, Bart Wursten and Petra Ballings
bibliographic citation
Hyde, M.A., Wursten, B.T. and Ballings, P. (2002-2014). Rumohra adiantiformis (G. Forst.) Ching Flora of Zimbabwe website. Accessed 28 August 2014 at http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=101800
author
Mark Hyde
author
Bart Wursten
author
Petra Ballings
original
visit source
partner site
Flora of Zimbabwe

Rumohra adiantiformis

provided by wikipedia EN

Rumohra adiantiformis, the leather fern or leatherleaf fern,[2][3] is a species of fern in the wood fern family Dryopteridaceae. It has a wide distribution, mainly in the tropical Southern Hemisphere.

Names

Other common names include leathery shieldfern,[4] iron fern,[5] 7-weeks-fern,[6] and climbing shield fern.[7]

Description

Growing to 90 cm (35 in) tall and broad, Rumohra adiantiformis is a bushy, tufted evergreen plant with glossy dark green fronds. These contain round sori (reproductive clusters) on the underside of the pinnae (leaflets) unlike many other ferns which have separate specialized reproductive fronds. Many of the sori have protective peltate indusia (films), and prominent scales on the stipes of the fronds.

Distribution

Rumohra adiantiformis is native to South America, the Caribbean, southern Africa, the Western Indian Ocean islands, Papua New Guinea, and Australasia.[2] Countries it is native to include such diverse places as Brazil and Colombia,[8] the Galápagos Islands,[9] the Greater Antilles in the Caribbean, Zimbabwe and South Africa[2] Australia, and New Zealand.

Ecology

An example of plant associations of Rumohra adiantiformis is found in the Westland podocarp/broadleaf forests of New Zealand, with flora associates including Ascarina lucida, Pseudowintera colorata, Neopanax colensoi, Alsophila smithii, and Blechnum discolor.[10]

Cultivation

The fern is cultivated as an ornamental plant for groundcover and in floristry.[3] As it is a tropical plant with only limited protection against frost, in temperate climates it is normally grown under glass as a houseplant. In the UK it has gained the Royal Horticultural Society’s Award of Garden Merit.[11][12]

It is of economic importance in Brazil, where thousands of people generate their income by wild-harvesting and selling the fronds for use in flower arrangements.[6]

References

  1. ^ Bárrios, S.; Copeland, A. (2021). "Rumohra adiantiformis". IUCN Red List of Threatened Species. 2021: e.T192003776A192161065. doi:10.2305/IUCN.UK.2021-3.RLTS.T192003776A192161065.en. Retrieved 30 November 2022.
  2. ^ a b c U.S. National Plant Germplasm System; GRIN-Global Web v 1.9.7.1: Taxonomy profile of Rumohra adiantiformis
  3. ^ a b Gilman, E. F. Rumohra adiantiformis. Fact Sheet FPS-515. University of Florida Cooperative Extension, IFAS. 1999.
  4. ^ Rumohra adiantiformis. Flora of Tasmania.
  5. ^ Rumohra adiantiformis. USDA PLANTS.
  6. ^ a b De Souza, G. C., et al. (2006). An ethnobiological assessment of Rumohra adiantiformis (samambaia-preta) extractivism in Southern Brazil. Biodiversity & Conservation 15(8), 2737-46.
  7. ^ Rumohra adiantiformis. Museum of New Zealand Te Papa Tongarewa, Wellington.
  8. ^ Gonzalez Castiblanco, G. P. 2004. Factibilidad de exportacion de follaje de helecho de cuero (Rumohra adiantiformis) para ramos o adornos frescos. Pontificia Universidad Javeriana, Bogota, Colombia, Facultad de Ingenieria, 134 pages.
  9. ^ Wiggins, I. L. Flora of the Galápagos Islands. Stanford University Press. 1971. 998 pages ISBN 0-8047-0732-4, ISBN 978-0-8047-0732-9
  10. ^ Hogan, C. M. 2009. Crown Fern: Blechnum discolor Archived 2012-02-13 at the Wayback Machine Globaltwitcher.com, ed. N. Stromberg.
  11. ^ "Rumohra adiantiformis". Retrieved 11 October 2018.
  12. ^ "AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 93. Retrieved 11 October 2018.

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Rumohra adiantiformis: Brief Summary

provided by wikipedia EN

Rumohra adiantiformis, the leather fern or leatherleaf fern, is a species of fern in the wood fern family Dryopteridaceae. It has a wide distribution, mainly in the tropical Southern Hemisphere.

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Wikipedia authors and editors
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wikipedia EN