This taxonomic section represents the most species-rich division within its parent genus, encompassing a fascinating array of ancient conifers. The majority of the species within this group are endemic to New Caledonia, a globally recognized biodiversity hotspot, with a few others scattered across Australia and New Guinea. These trees are highly valued both for their unique evolutionary history and their striking architectural forms in landscaping.
Leaves: Members of this section are primarily distinguished by their relatively small, scale-like, or awl-shaped leaves. Unlike the broad foliage found in other sections of the genus, these leaves closely overlap along the stems, giving the branches a characteristic cord-like appearance.
Cones: The reproductive structures exhibit distinct morphological traits, particularly in the female cones, which are generally smaller than those of the broad-leaved sections. The cones disintegrate at maturity to release winged seeds that are adapted for wind dispersal.
Ornamental landscaping: Several species within this section, particularly the Norfolk Island pine, are extensively cultivated worldwide as ornamental trees in subtropical and coastal environments.
Silviculture: Certain species are cultivated in plantations for their high-quality timber, which is utilized in specialized woodworking and plywood manufacturing.
The extraordinary concentration of species from this section in New Caledonia is considered a classic example of island radiation and evolutionary isolation. Fossils corresponding to this section have been found globally, indicating a much wider prehistoric distribution before climatic changes restricted their range.
An endangered coniferous tree endemic to the dense forests and specialized soils of New Caledonia.
External Databases: Tropicos