Ophioglossum lusitanicum

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Ophioglossum lusitanicum

Least Concern  (IUCN 3.1)[1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Ophioglossales
Family: Ophioglossaceae
Genus: Ophioglossum
Species:
O. lusitanicum
Binomial name
Ophioglossum lusitanicum
Synonyms
  • Ophioglossum braunii Prantl
  • Ophioglossum loureiroanum C.Presl

Ophioglossum lusitanicum, the least adder's-tongue,

IUCN (2001).[3]

Description

Ophioglossum lusitanicum is a small winter annual fern, and consists of a simple sterile blade attached to a spike-like fertile blade with between three and eight sunken

sporangia on either side. The whole plant rarely exceeds a height of 2 cm.[4]

This species has a

chromosome number of 2n = 250–260.[4]

Distribution

Ophioglossum lusitanicum is native to regions bordering the eastern

Caucasus region and has some records in India and Vietnam.[5]

The distribution in Britain is restricted to one small area of coastal heath on

Wildlife and Countryside Act 1981, and is within a Site of Special Scientific Interest
(SSSI).

Ecology

As this species is a winter annual, it requires a warm winter environment. In its British populations, it favours thin, unshaded, peaty soils in south-facing localities.[7]

Taxonomy

Linnaeus was the first to describe least adder's-tongue with the binomial Ophioglossum lusitanicum in his Species Plantarum of 1753.[8]

References

  1. doi:10.2305/IUCN.UK.2011-1.RLTS.T194161A8885861.en
    . Retrieved 20 November 2021.
  2. ISBN 978-1-139-48649-1
    .
  3. doi:10.2305/IUCN.UK.2011-1.RLTS.T194161A8885861.en
    . Retrieved 15 January 2020.
  4. ^
    Stace, Clive
    , (1997). New Flora of The British Isles, second edition. Cambridge: Cambridge University Press
  5. ^ "Ophioglossum lusitanicum L." Catalogue of Life. Retrieved 8 December 2020.
  6. ^ Bennallick, I.J., French, C.F and Parslow, R.E. (2009) Vascular Plants. In CISFBR, Red Data Book for Cornwall and the Isles of Scilly. 2nd Edition. Praze-an-Beeble: Croceago Press.
  7. ^ Online Atlas of the British Flora: Ophioglossum lusitanicum
  8. ^ Linnaeus, C. (1753). Species Plantarum. Vol. II (1st ed.). Stockholm: Laurentii Salvii. p. 1063.

External links

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