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The flower-like williamsoniacean male reproductive structure Weltrichia is associated with the female reproductive structure Williamsonia, though it is uncertain whether the parent plants were monoecious (male and female reproductive structures being present on the same plant) or dioecious (where each plant has only one gender of reproductive ...
Cycas is a genus of cycad, and the only genus in the family Cycadaceae with all other genera of cycad being divided between the Stangeriaceae and Zamiaceae families. Cycas circinalis, a species endemic to India, was the first cycad species to be described in western literature, and is the type species of the genus.
This listing contains taxa of plants in the division Cycadophyta, recorded from South Africa.Cycads / ˈ s aɪ k æ d z / are seed plants with a very long fossil history that were formerly more abundant and more diverse than they are today.
The Australian genus Bowenia and some Asian species of Cycas, like Cycas multipinnata, C. micholitzii and C. debaoensis, have leaves that are bipinnate, the leaflets each having their own subleaflets, growing in the same form on the leaflet as the leaflets do on the stalk.
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Zamia furfuracea leaves. The genus comprises deciduous shrubs with aerial or subterranean circular stems, often superficially resembling palms.They produce spirally arranged, pinnate leaves which are pubescent, at least when young, having branched and simple, transparent and coloured hairs.
They do well in full sun or shade, but not in constant deep shade. They are fairly salt- and drought-tolerant but should be protected from extreme cold. They should occasionally be fed with palm food. After Cycas revoluta, this is probably the most popular cycad species in cultivation.
Cycas cairnsiana is a species of cycad in the genus Cycas, native to northern Australia in northern Queensland on the Newcastle Range. The stems grow to 2–5 m tall and 12–16 cm diameter, with swollen base.