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Araucaria (/ æ r ɔː ˈ k ɛər i ə /; original pronunciation: [a.ɾawˈka. ɾja]) [ 2 ] is a genus of evergreen coniferous trees in the family Araucariaceae . While today they are largely confined to the Southern Hemisphere , during the Jurassic and Cretaceous they were globally distributed.
Araucaria araucana is a masting species, and rodents are important consumers and dispersers of its seeds. The long-haired grass mouse, Abrothrix longipilis, is the most important animal responsible for dispersing the seeds of A. araucana. This rodent buries seeds whole in locations favorable for seed germination, unlike other animals. [10]
Araucariaceae is a family of conifers with three living genera, Araucaria, Agathis, and Wollemia.While the family's native distribution is now largely confined to the Southern Hemisphere, except for a few species of Agathis in Malesia, it was formerly widespread in the Northern Hemisphere during the Jurassic and Cretaceous periods.
A krummholz of Nothofagus antarctica and N. pumilio grows near the tree line. The southern limit of these forests is 38º S latitude. Tall coniferous pehuén monkey-puzzle trees (Araucaria araucana) grow at the southern edge of the deciduous forests, from the coast at Nahuelbuta National Park to the Andes. [5] Valdivian laurel-leaved forests.
Araucaria angustifolia trees play a pivotal role in shaping the landscape and fostering ecological diversity in southern Brazilian highlands. These conifers act as a facilitator species , also known as nurse trees , significantly increasing species richness and abundance of other trees beneath their crowns.
Araucaria bidwillii, commonly known as the bunya pine (/ ˈ b ʌ n j ə /), [4] banya [5] or bunya-bunya, is a large evergreen coniferous tree in the family Araucariaceae which is endemic to Australia. Its natural range is southeast Queensland with two very small, disjunct populations in northeast Queensland's World Heritage listed Wet Tropics.
Fossilised cones of Araucaria mirabilis. About 150 million years ago, during the late Jurassic period, the area occupied by this national park had a stable climate with abundant moisture. Dense forests with giant trees grew here, among which were Araucaria mirabilis, an ancient relative of modern species of Araucaria, a kind of evergreen ...
Araucarioxylon arizonicum (alternatively Agathoxylon arizonicum) is an extinct species of conifer that is the state fossil of Arizona. [1] The species is known from massive tree trunks that weather out of the Chinle Formation in desert badlands of northern Arizona and adjacent New Mexico, most notably in the 378.51 square kilometres (93,530 acres) Petrified Forest National Park. [2]