Cyathea archboldii

Cyathea archboldii
Cyathea archboldii
Scientific classification
Kingdom: Plantae
Division: Pteridophyta
Class: Pteridopsida
Order: Cyatheales
Family: Cyatheaceae
Genus: Cyathea
Subgenus: Cyathea
Section: Alsophila
Species: C. archboldii
Binomial name
Cyathea archboldii
C. Christensen, 1937
Varieties
  • C. a. var. archboldii C. Christensen, 1937
  • C. a. var. horrida Holttum, 1963
Synonyms
  • Alsophila archboldii (C. Christensen) Tryon, 1970
  • Cyathea bidentata Copeland, 1942

Cyathea archboldii is a species of tree fern native to New Guinea and Bougainville, where it is common in submontane rain forest at an altitude of 1000-3000 m. The trunk is erect and up to about 3 m tall. Fronds are bipinnate and 2-3 m long. The rachis may be purplish and has short spines and scales. The scales range in colour from pale to brown, to bicoloured (brown with dark brown) and have fragile edges. Sori occur in two rows along each side of the pinnule midvein and are covered by firm indusia.

C. archboldii has a wide altitudinal distribution and has been collected in habitats ranging from forest to alpine shrubbery. One variety, C. archboldii var. horrida, was recognised by Richard Eric Holttum in 1963. Cyathea foersteri and Cyathea nigrolineata are thought to be the closest relatives of this species, but differ in frond shape (lower pinnae are more reduced) and in having shorter stipes.

The specific epithet archboldii is thought to commemorate Richard Archbold (1907-1976), an internationally known explorer and heir to the Standard Oil Company. Archbold led several biological expeditions to Madagascar and the interior of New Guinea.

References


Wikimedia Foundation. 2010.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • Cyathea — medullaris growing in New Zealand Scientific classification Kingdom: Plantae …   Wikipedia

  • Cyathea subg. Cyathea — Cyathea Cyathea dealbata Scientific classification Kingdom: Plantae …   Wikipedia

  • Cyathea — Cyathea …   Wikipédia en Français

  • Cyathea secc. Alsophila — Saltar a navegación, búsqueda ? Alsophila Clasificación científica Reino: Plantae División …   Wikipedia Español

  • Cyathea subg. Cyathea — Saltar a navegación, búsqueda ? Cyathea Clasificación científica Reino: Plantae División …   Wikipedia Español

  • Cyathea foersteri — Scientific classification Kingdom: Plantae Division: Pteridophyta Class: Pteridopsida …   Wikipedia

  • Cyathea sect. Alsophila — For other meanings, see Alsophila. Alsophila Scientific classification Kingdom: Plantae Division: Pteridophyta Order …   Wikipedia

  • Cyathea —   Cyathea Un helecho …   Wikipedia Español

  • Cyathea — Cyathea …   Wikipédia en Français

  • Dicksonia — antarctica Scientific classification Kingdom: Plantae …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”