WB01343_.gif (599 bytes)   Araucaria Cones   WB01345_.gif (616 bytes)

AraucariaConesSeries400Lab.jpg (142852 bytes)
Immature Araucaria Microsporangiate Cones
ArauMaleConeOutVClose500Lab.jpg (188682 bytes)
Detail of an Immature Araucaria Microsporangiate Cone showing the Sporophylls
AraucariaMaleConeSolo300.jpg (61740 bytes)
Intact Immature Araucaria Microsporangiate Cone
arauconemalels300lab.jpg (83574 bytes)
Longitudinal Section of an Araucaria Microsporangiate Cone showing the Cone Axis (Stem) & Individual Sporophylls (Leaves).
ArauIsolMicroSphyllsLab.jpg (80044 bytes)
Isolated Microsporophylls showing the large Microsporangia
ArauConeMaleClose300Lac.jpg (104691 bytes)
Detail of Microsporangiate Cone showing the Sporangia and Pollen (Microgametophyte)
ArauMaleConesLM.jpg (194572 bytes)
Araucaria Tree with Mature Microsporangiate Cones
ArauMegaConesTreeSideLab.jpg (216630 bytes)
Immature Araucaria Megasporangiate Cones: These occur on the Uppermost branches of this species.
ArauMegaConeMacro.jpg (181045 bytes)
Immature Megasporangiate Cone
ArauMegConeCloseLab.jpg (189964 bytes)
The cone is composed of
"Megasporophylls". This is an oversimplification BUT it is sufficient for this class.
ArauMegaConeXSMacroLab.jpg (171010 bytes)
Cross Section of a Megasporangiate Cone showing the
Cone Axis and the "Megasporophylls".
MegaConeXSMacLab.jpg (152284 bytes)
Cross Section of a Megasporangiate cone showing the Cone Axis and the
Ovules; Each "Megasporophyll" produces one Ovule.
ArayMegaSPhylsIsoLab.jpg (133123 bytes)
Isolated "Megasporophylls"
ArayMegaSPhyllSoloLab.jpg (145098 bytes)
A "Megasporophyll" with its
Ovule
AraucariaYoungCone300.jpg (119832 bytes)
Partly Mature Araucaria Megasporangiate Cone
AraucariaConeSeed.jpg (120741 bytes)
Mature Araucaria Cone showing a Scale ("Megasporophyll") and 2 Seeds.The Seed is a Mature Ovule!

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