Araucaria hunsteinii

Araucaria hunsteinii (Klinki or Klinkii) is a species of Araucaria native to the mountains of Papua New Guinea. It is threatened by habitat loss.

Araucaria hunsteinii mature leaf detail.
Araucaria hunsteinii mature trunk detail.

Araucaria hunsteinii
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Division: Pinophyta
Class: Pinopsida
Order: Pinales
Family: Araucariaceae
Genus: Araucaria
Section: A. sect. Intermedia
Species:
A. hunsteinii
Binomial name
Araucaria hunsteinii

It is a very large evergreen tree (the tallest in New Guinea, and the tallest species in its family), growing to 50–80 m tall, exceptionally to 90 m, with a trunk up to 3 m diameter. The branches are horizontal, produced in whorls of five or six. The leaves are spirally arranged, scale-like or awl-like, 6–12 cm long and 1.5–2 cm broad at the base, with a sharp tip; leaves on young trees are shorter (under 9 cm) and narrower (under 1.5 cm). It is usually monoecious with male and female cones on the same tree; the pollen cones are long and slender, up to 20 cm long and 1 cm broad; the seed cones are oval, up to 25 cm long and 14–16 cm broad. The seed cones disintegrate at maturity to release the numerous 3–4 cm long nut-like seeds.

Cultivation and uses

It is a fast-growing tree, and is being tested as a potentially important timber crop in tropical highland climates.

References

  • Conifer Specialist Group 1998. Araucaria hunsteinii. Downloaded on 10 July 2007.
  • Howcroft, N. H. S. (1978). Data sheets on species undergoing genetic impoverishment: Araucaria hunsteinii. Forest Genetics Resources Information 8: 31-37.
  • Russo, R. O., & Briscoe, C. B. (2002). Performance of Klinki (Araucaria hunsteinii K. Schuman) in the Humid Tropics of Costa Rica. Journal of Sustainable Forestry 14 (4): 13-18.
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