The Conifers |
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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. |