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. |
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