Asplenium obtusatum

Asplenium obtusatum
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Embryophytes
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Polypodiales
Suborder: Aspleniineae
Family: Aspleniaceae
Genus: Asplenium
Species:
A. obtusatum
Binomial name
Asplenium obtusatum
G.Forst.

Asplenium obtusatum, the shore spleenwort or paranako, is a species of spleenwort found in New Zealand and other Pacific isles.[1][2]

Description

Shore spleenworts grow up to 1 metre (3.3 ft) high and the same across. They are evergreen plants with plump fronds and bulky rhizomes that often protrude above-ground as a woody lump.[3][4] Spleenworts have elongated, rather than circular, sori;[5] those of Asplenium obtustatum grow to 1 centimetre (0.39 in) long.[3]

Distribution

Shore spleenworts are found in coastal habitats on both main islands of New Zealand (North and South), as well as Stewart Island, Campbell Island, and the Chatham, the Snares, Auckland, and the Antipodes islands. It is also reported from various southern Pacific and Atlantic islands and from parts of South America.[6][7]

Taxonomy

Asplenium obtusatum is commonly known as the shore spleenwort; its Māori name is "paranako".[4] The specific epithet, obtusatum, means "blunt".[7]

There are two subspecies: A. o. obtusatum, more common in the South Island; and A. o. northlandicum, smaller and found near Auckland.[3]

References

  1. ^ "Asplenium obtusatum G.Forst. | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 2024-12-17.
  2. ^ Perrie, Leon; Brownsey, Patrick (2004-06-01). "trn L intron variation in New Zealand taxa of the Asplenium obtusatum Chloroplast Group". Tuhinga. 15: 1–5. doi:10.3897/tuhinga.15.e34142. ISSN 2253-5861.
  3. ^ a b c Brownsey, P. J. (1977). "A taxonomic revision of the New Zealand species of Asplenium". New Zealand Journal of Botany. 15 (1): 47–50. doi:10.1080/0028825X.1977.10429618. ISSN 0028-825X.
  4. ^ a b "Asplenium obtusatum". Auckland Botanic Gardens. Retrieved 2024-12-17.
  5. ^ Rothfels, Carl J.; Larsson, Anders; Kuo, Li-Yaung; Korall, Petra; Chiou, Wen-Liang; Pryer, Kathleen M. (2012). "Overcoming Deep Roots, Fast Rates, and Short Internodes to Resolve the Ancient Rapid Radiation of Eupolypod II Ferns". Systematic Biology. 61 (1): 490–509. doi:10.1093/sysbio/sys001. PMID 22223449.
  6. ^ Perrie, Lr; Brownsey, Pj (2016-07-02). "Asplenium lepidotum , a new fern species from New Zealand allied to Asplenium oblongifolium and Asplenium obtusatum". New Zealand Journal of Botany. 54 (3): 377–391. doi:10.1080/0028825X.2016.1205108. ISSN 0028-825X.
  7. ^ a b "Asplenium obtusatum". New Zealand Plant Conservation Network. Archived from the original on 2024-06-14. Retrieved 2024-12-18.


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