| 1. | Gymnosperms: Cedrus, Pinus, Sequoia |
| 2. | Angiosperms: Wolffia, Eucalyptus, Sequoia |
| 3. | Bryophytes : Polytrichum, Polysiphonia, Sphagnum |
| 4. | Pteridophytes : Equisetum, Ginkgo, Adiantum |
| 1. | Salvinia, Ginkgo and Pinus all are gymnosperms |
| 2. | Sequoia is one of the tallest trees |
| 3. | The leave of gymnosperms are not well adapted to extremes of climate |
| 4. | Gymnosperms are both homosporous and heterosporous |