[Laboratory IX -- <EM>Ginkgo,</EM> <EM>Cordaites,</EM> and the Conifers]


VIRTUAL GALLERY (III)


The Conifers

3:1
Larix
3:2
Pinus transverse section, showing pycnoxylic wood.
3:3
Fertilization of Pinus ovule. Longitudinal section. Note pollen tube at the top of megagametophyte.
3:4
Pinus ovulate cone in longitudinal section.
3:5
Pinus staminate cone in longitudinal section.
3:6
Metasequoia foliated axis from the Oligocene of Oregon.
3:7
Lebachia branch compression from the Carboniferous of Texas.
3:8
Walchia piniformis compressed foliage, New Mexico.
3:9
Araucaria foliated axis from the Upper Carboniferous of California.


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