Asplenium unisorum

  1. Home
  2. Wiki

Asplenium unisorum
Potted small fern with pinnate light-green leaves and brown leaf axes
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Polypodiales
Suborder: Aspleniineae
Family: Aspleniaceae
Genus: Asplenium
Species:
A. unisorum
Binomial name
Asplenium unisorum
(Wagner) Viane[4]
Synonyms[4]

Diellia unisora Wagner

Asplenium unisorum, the singlesorus island spleenwort,[5] is a species of fern endemic to the Hawaiian Islands.[1] It only lives between 650 and 700 m (2,130 and 2,300 ft) in the Waiʻanae Range on the island of Oʻahu.[1] It is classified as critically endangered, with a fragmented, actively shrinking mature population of around 1,150.[1]

Description

[edit]

It grows 5–30 mm (0.2–1.2 in) tall, with a 5–10 mm (0.2–0.4 in) diameter.[6] Leaf stalks branch off the main stem, which also features a few "small black scales".[6] The stalks themselves are "black and shiny", around 2–5 cm (0.8–2.0 in) long.[6] Branching off from the stalks, the fronds of the fern are 8–30 cm (3.1–11.8 in) tall by 0.5–3 cm (0.2–1.2 in) broad.[6]

References

[edit]
  1. ^ a b c d Keir, M.; Sugii, N.; Gon, S.M.; Chau, M.; Kwon, J.; Weisenberger, L. (2017) [errata version of 2016 assessment]. "Asplenium unisorum". IUCN Red List of Threatened Species. 2016 e.T78775516A115493966. doi:10.2305/IUCN.UK.2016-1.RLTS.T78775516A78775751.en.
  2. ^ "No common name (Asplenium unisorum)". Environmental Conservation Online System. U.S. Fish & Wildlife Service. Retrieved 20 June 2024.
  3. ^ "Endangered and Threatened Wildlife and Plants; Endangered Status for Three Plants From the Waianae Mountains, Island of Oahu, HI". Federal Register. 59 (122): 32932–32938.
  4. ^ a b "Asplenium unisorum (Wagner) Viane)". Global Biodiversity Information Facility. Retrieved 1 January 2025.
  5. ^ "Asplenium unisorum (W.H. Wagner) Viane". Integrated Taxonomic Information System. Retrieved 20 June 2024.
  6. ^ a b c d "Singlesorus Island Spleenwort". U.S. Fish & Wildlife Service. Retrieved 2025-02-25.


Stub icon

This Polypodiales-related article is a stub. You can help Wikipedia by expanding it.