MacKee's araucaria (Araucaria mackeei)
Araucaria mackeei: Species Profile, Ecology, and Habitat
Steep ridges and dense montane shrublands in New Caledonia provide the sole refuge for Araucaria mackeei. This remarkable conifer species evolved in deep isolation, adapting to some of the most challenging geological conditions found in the Pacific. Discovered and named in honor of botanist Hugh S. MacKee, it remains one of the least known members of its ancient genus.
Taxonomy
- ∟ царство Plantae
- ∟ division Tracheophytes
- ∟ subdivision Spermatophytes (Seed plants)
- ∟ superclass Gymnospermae
- ∟ division Pinophyta
- ∟ subclass Cupressidae
- ∟ order Araucariales (Southern pines and monkey-puzzles)
- ∟ family Araucariaceae (Araucaria family)
- ∟ genus Araucaria (Monkey puzzle tree)
- ∟ species Araucaria mackeei (MacKee's araucaria)
Morphology
Specimens grow as medium-sized trees, typically reaching heights between 15 and 30 meters, with an open, irregular crown. The adult foliage is composed of broad, overlapping, ovate scales that completely conceal the underlying twigs. Mature seed cones are large, heavily lignified, and possess distinct sharply pointed bracts, a defining feature for many New Caledonian species.
Interesting facts
- Named to honor the extensive botanical contributions of Hugh S. MacKee in New Caledonia.
- Restricted to serpentine and ultramafic soils that are toxic to many other plant groups.
- Possesses a highly fragmented natural range, making it exceptionally vulnerable to wildfires and mining activities.
Geography of distribution
- New Caledonia
Sources
- Plants of the World Online (POWO)
- Global Biodiversity Information Facility (GBIF)
- World Flora Online (WFO)