Jump to content

Austroblechnum durum

From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by Citation bot (talk | contribs) at 10:28, 21 December 2019 (Alter: first. Removed URL that duplicated unique identifier. | You can use this bot yourself. Report bugs here. | Activated by User:Grimes2 | via #UCB_webform). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Austroblechnum durum
Scientific classification
Kingdom:
Division:
Class:
Polypodiopsida /
 Pteridopsida (disputed)
Order:
Family:
Genus:
Species:
B. durum
Binomial name
Blechnum durum
(T.Moore) C.Chr.[1]
Synonyms[2]
  • Lomaria dura T. Moore, 1866.
  • Lomaria rigida J.Sm., 1866.
  • Spicanta dura (T.Moore) Kuntze, 1891.
  • Struthiopteris dura (T.Moore) Ching, 1940.

Blechnum durum in the hard fern genus is within the family Blechnaceae.[3] The fern is endemic to New Zealand.[4]

Description

Thomas Moore described this species as follows:

Fronds pinnate below, lanceolate, fleshy coriaceous, 1 foot or more in length ; pinnae or segments close with a narrow sinus, not confluent, obtuse, entire, somewhat marginate, the middle ones oblong, subfalcate, the upper diminished into an acuminate apex, the lower dwarfed into rounded lobes ; veins forked, slightly club-shaped at the ends, lanceolate, abruptly caudate, with broadish crowded very blunt pinnae curving upwards, slightly decurrant on the anterior side, and there furnished with a minute free auricle ; sori marginal ; indisium narrow transversely wrinkled lacerato-fimbrate at the margin ; caudex erect subarborecent ; stipes and inch long, with ovate-lanceolate scales at the base, the rachis prominent and bluntly-keeled behind, furrowed at front.[5]

Taxonomy

This fern was first described by Moore in The Gardeners' Chronicle in 1866.[5] His description was based on a cultivated specimen collected by Henry H. Travers on the Chatham Islands in 1871.[6]

Distribution and habitat

B. durum has a somewhat restricted range in coastal forests from south of Okuru and the Haast River eastward to the Catlins area of the South Island. B. durum also is found on Stewart Island in the mixed hardwood/podocarp forest floor in association with Blechnum blechnoides, Blechnum chambersii and Blechnum colensoi.[7]

References

  1. ^ "Blechnaceae Blechnum durum (T.Moore) C.Chr". The International Plant Names Index. The Royal Botanic Gardens, Kew, The Harvard University Herbaria, and the Australian National Herbarium. Retrieved 9 January 2016.
  2. ^ "Blechnum durum (T.Moore) C.Chr., 1905". NZOR (2012). New Zealand Organisms Register. Archived from the original on 25 January 2016. Retrieved 9 January 2016.
  3. ^ Peter., Wardle (1991). Vegetation of New Zealand. Cambridge [England]: Cambridge University Press. ISBN 0521258731. OCLC 26504843.
  4. ^ "Blechnum durum (T.Moore) C.Chr". www.nzor.org.nz. Manaaki Whenua Landcare Research. Retrieved 2 February 2019.
  5. ^ a b Moore, Thomas (31 March 1866). "Lomaria dura". The Gardeners' Chronicle and Agricultural Gazette: 290. Retrieved 14 January 2016.
  6. ^ Cheeseman, Thomas Frederick (1914). Illustrations of the New Zealand flora. Wellington: John Mackay, Govt. Printer. pp. 486–491. Retrieved 9 January 2016.
  7. ^ Hogan, C. Michael (30 April 2009). "Crown Fern Blechnum discolor". GlobalTwitcher.com. Retrieved 2 February 2019.