| A kind of damper is made from the seeds or nuts from the female plants of cycads and zamia palms. |
| The cycads are well known as garden plants and the group includes the sago palm. |
| Plants with strong forms predominate, notably agaves and cycads, which complement the existing bird of paradise and queen palm. |
| The microsprophylls of cycads are arranged in strobili and bear clusters of microsporangia on their abaxial surface. |
| Some authors have suggested a close relationship between cycads and Lyginopteris, but most favor an affinity to Medullosan seed plants. |
| Large plants were dominantly conifers, followed by lesser amounts of cycads, seed ferns, and ginkgos. |
