Some Morphological Features of Wollemi Pine (Wollemia nobilis: Araucariaceae) and Their Comparison to Cretaceous Plant Fossils

@article{Chambers1998SomeMF,
  title={Some Morphological Features of Wollemi Pine (Wollemia nobilis: Araucariaceae) and Their Comparison to Cretaceous Plant Fossils},
  author={T. Chambers and A. Drinnan and S. McLoughlin},
  journal={International Journal of Plant Sciences},
  year={1998},
  volume={159},
  pages={160 - 171}
}
Morphological details of Wollemia nobilis (Wollemi pine) are described and illustrated, and compared with the extant genera Agathis and Araucaria and with selected araucarian fossils from the Cretaceous of Australia. Adult and juvenile shoots of Wollemia differ in leaf arrangement, leaf shape, and cuticular features; in these features they are most similar to Araucaria. The cone scales have a long, distal spine reminiscent of Araucaria section Eutacta, but the winged seeds that are… Expand
Araucaria lefipanensis (Araucariaceae), a new species with dimorphic leaves from the Late Cretaceous of Patagonia, Argentina.
TLDR
The new species shows evidence of mosaic evolution, with cone scale complexes morphologically similar to section Eutacta and leaves similar to the sections of the broad-leaved clade, constituting a possible transitional form between these two well-defined lineages. Expand
First Evidence for Wollemi Pine-type Pollen (Dilwynites: Araucariaceae) in South America
TLDR
Fossils from the Ligorio Márquez Formation of Santa Cruz, Patagonia, Argentina are assigned to Dilwynites, the fossil pollen type that closely resembles the pollen of modern Wollemia and some species of its Australasian sister genus, Agathis. Expand
Agathis trees of Patagonia's Cretaceous-Paleogene death landscapes and their evolutionary significance.
TLDR
A Mesozoic divergence for the Araucariaceae crown group, previously challenged by molecular divergence estimates, is supported by the combined phylogenetic analyses including the fossil taxa. Expand
Diversification of crown group Araucaria: the role of Araucaria famii sp. nov. in the mid-Cretaceous (Campanian) radiation of Araucariaceae in the Northern Hemisphere.
TLDR
This small cone with attached, imbricate leaves, wide bracts, and unusually large seeds, most closely resembles those of Araucaria Section Eutacta, providing important new insights into the structure and relationships of Cretaceous Northern Hemisphere Araucariaceae. Expand
Cretaceous (Late Albian) coniferales of Alexander Island, Antarctica. 2. Leaves, reproductive structures and roots.
TLDR
Evidence from leaf litter distribution on palaeosols and leaf morphology suggest that the majority of conifers in this Albian southern high-latitude flora were large canopy-forming trees, although a few were probably small understorey shrubs. Expand
Structure and abnormalities in cones of the Wollemi pine (Wollemia nobilis)
TLDR
Reproductive structures of both genders of Wollemia nobilis were investigated, including both wild-type and teratological cones, finding the patterning of conifer cones is apparently highly labile, perhaps related to the extended cone axis and relatively long developmental duration. Expand
Wairarapaia mildenhallii gen. et sp. nov., a New Araucarian Cone Related to Wollemia from the Cretaceous (Albian‐Cenomanian) of New Zealand
TLDR
A new genus and species, Wairarapaia mildenhallii Cantrill et Raine, is established for two ovulate cones with helically inserted cone‐scale complexes and a centrally positioned inverted ovule from the Cretaceous of New Zealand, which supports the notion that many records of Araucaria‐like fossils represent basal lineages within the Araucariaceae rather than extinct members of the genus AraUCaria. Expand
Complete Chloroplast Genome of the Wollemi Pine (Wollemia nobilis): Structure and Evolution
TLDR
The entire sequence of the W. nobilis chloroplast genome is determined, and it is suggested that the genome contains an unusually high number of repetitive sequences, and these could be used in future studies to investigate and conserve any remnant genetic diversity in the Wollemi pine. Expand
Gymnosperms from the Lower Cretaceous Crato Formation (Brazil). I. Araucariaceae and Lindleycladus (incertae sedis)
TLDR
Fossil conifers from the Early Cretaceous, most likely late Aptian, Crato Formation were studied and members of two conifer taxa were recognized, interpreted as adaptations to a warm seasonally dry climate. Expand
Upatoia barnardii gen. et sp. nov., an araucarian pollen cone with in situ pollen from the Late Cretaceous (Santonian) of Georgia, USA
TLDR
Microsporophylls of U. barnardii confirm suggestions from previous studies of fossil material that some Mesozoic Araucariaceae had only three pollen sacs per microsporphyll, in contrast to extant species that often have more than ten pollensacs permicrospora. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 23 REFERENCES
Palynology of the plant-bearing rhaetian to hettangian kap stewart formation, scoresby sund, east greenland
The Kap Stewart Formation of Scoresby Sund, known for a well-preserved and extensive flora of macroplant fossils (Harris, 1926–1937), has been palynologically investigated to compare the microfloraExpand
Reconstruction of the Oligocene vegetation at Pioneer, northeast Tasmania
The Oligocene vegetation at Pioneer was closed temperate rainforest dominated by Nothofagus johnstonii Hill, which probably produced N. menziesii-type pollen. However, other angiosperms (Quintinia,Expand
Araucarian Foliage from the Lower Cretaceous of Southern Victoria, Australia
  • D. Cantrill
  • Biology
  • International Journal of Plant Sciences
  • 1992
TLDR
Cuticular studies of broad multiveined leafed conifers from the Victorian Lower Cretaceous using SEM and light microscopy confirm the presence of the Araucariaceae and allow discrimination of six new species that show affinities to the extant sections of Araucaria. Expand
Cuticle Micromorphology of Agathis Salisbury
TLDR
Subsidiary cell number, shape, and morphology and stomatal orientations are the best characters to use when distinguishing fossil araucarian cuticles from those of broad-leaved podocarps. Expand
Australian cretaceous terrestrial faunas and floras: biostratigraphic and biogeographic implications
Abstract Nonmarine Cretaceous sediments representing fluvial/lacustrine deposits occur in 22 of Australia's 23 Mesozoic depositional basins. They are associated with open to marginal marine sedimentsExpand
Tertiary Araucarian Macrofossils From Tasmania
TLDR
These species confirm the presence of the subtropical/tropical Araucariaceae in Tasmania in the Eocene and the evolutionary position of the fossil species is uncertain at present. Expand
Early Tertiary palaeogeography, landform evolution, and palaeoclimates of the Southern Monaro, N.S.W., Australia
The age of the southern highlands of Australia has long been controversial. Recent field investigations around Bombala in southern New South Wales have shed some light on this as well as on the earlyExpand
Cuticle Micromorphology of Araucaria de Jussieu
Cuticle micromorphology of leaves from all 20 species of the Southern Hemisphere conifer genus Araucaria de Jussieu was studied with scanning electron microscopy. Both juvenile and adult foliage andExpand
Tertiary Araucariaceae From South-Eastern Australia, With Notes on Living Species
The foliage shoots, male cones, and female cone-scales of a new Tertiary species of Araucaria, section Eutacta, from the brown coal at Yallourn, Victoria, have been described; leaves and male andExpand
Broad leafed coniferous foliage from the Lower Cretaceous Otway Group, southeastern Australia
Broad leafed conifers are described from Middle Albian (Lower Cretaceous) sediments of southeastern Australia. The leaves do not have gross morphology and cuticular features diagnostic of extantExpand
...
1
2
3
...