Bitterwood Tree
Picrasma
A genus of deciduous trees and shrubs known for their extremely bitter bark and medicinal …
Preserved exclusively within the fossil record, the ancient conifer Araucarites brodiei once thrived alongside the diverse flora of prehistoric ecosystems. As part of the form-genus Araucarites, this plant is recognized for its strong morphological affinities with the extant monkey puzzle trees and pines of the Araucaria genus.
The discovery and analysis of these fossils play an important role in tracing the ancient biogeography of coniferous forests. These remains help scientists piece together the floral diversity that characterized terrestrial landscapes millions of years ago.
The physical structure of Araucarites brodiei is reconstructed from fossilized remnants, most commonly reproductive structures like individual cone scales. These fossilized scales are typically robust, woody, and designed to house a single, centrally located seed.
When fossilized foliage is preserved, it generally consists of stiff, closely pressed leaves that spiraled along the branches. The preserved cuticles of these leaves sometimes reveal microscopic stomatal patterns, which paleobotanists use to infer the atmospheric conditions of the era.
Fossils assigned to Araucarites are widespread globally, indicating that relatives of modern Araucaria trees once had a much broader distribution than their current restricted ranges in the Southern Hemisphere. They were a dominant component of the flora across both Laurasia and Gondwana.
Picrasma
A genus of deciduous trees and shrubs known for their extremely bitter bark and medicinal …
Araucaria humboldtensis
A small, critically endangered coniferous tree native strictly to the high-altitude mountain peaks of southern …
Araucaria sect. Araucaria
Araucaria sect. Araucaria is a botanical section of evergreen conifers native to South America. It …
Araucaria
Araucaria is a genus of majestic, evergreen coniferous trees native to the Southern Hemisphere. Known …