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Encephalartos woodii, Wood's cycad, is a rare cycad in the genus Encephalartos, and is endemic to the oNgoye Forest of KwaZulu-Natal, South Africa. It is one of the rarest plants in the world, being extinct in the wild with all specimens being clones of the type . [ 2 ]
The seeds when mature measure about 5 cm (2.0 in) long by 4 cm (1.6 in) wide and are sheathed in a bright red sarcotesta. [ 4 ] [ 5 ] [ 6 ] It is reputed to be the tallest known species of cycad and it towers over other understorey vegetation, but rarely reaches the forest canopy .
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Like other cycads, Z. integrifolia is dioecious, having male or female plants. The male cones are cylindrical, growing to 5–16 cm long; they are often clustered. The female cones are elongate-ovoid and grow to 5–19 cm long and 4–6 cm in diameter. [8] It produces reddish seed cones with a distinct acuminate tip.
The leaflets are lanceolate and have serrated edges. They are up to 18 cm (7 in) long and 2 cm (1 in) wide, held at right angles to the rachis and slightly overlapping. Near the base of the leaves, the leaflets are reduced to prickles. [3] [5] E. lebomboensis is a dioecious species, that is, with separate male and female plants. Male specimens ...
Encephalartos lehmannii is a low-growing palm-like cycad in the family Zamiaceae.It is commonly known as the Karoo cycad and is endemic to South Africa. [3] The species name lehmannii commemorates Prof J.G.C. Lehmann, a German botanist who studied the cycads and published a book on them in 1834. [3]
Lepidozamia peroffskyana is a palm-like cycad in the Cardboard Palm Family Zamiaceae. It is endemic to eastern Australia, primarily near the coast of New South Wales. The species is named after Count Peroffsky (1794-1857), benefactor of the St. Petersburg Botanical Garden.
Cardboard cycads can only be reproduced by the fleshy, brightly crimson-colored seeds produced by the female plants. The germination process is very slow and difficult to achieve in cultivation; as a result, many plants sold for horticultural use are illegally collected in the wild, leading to the species being classified as Endangered .