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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 ]
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 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. [6] [7]: 4
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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 .
Loran M. Whitelock (April 21, 1930 - May 27, 2014) was an American botanist who specialized in Cycads, a prehistoric plant that once dominated the planet and is now somewhat rare and endangered. [1]
The plant has red seeds, about 1.3 to 1.8 centimeters long and 0.5 to 0.8 centimeters in diameter. Zamia fischeri can be distinguished from Zamia vazquezii by having smaller leaves (15-30 centimeters), lancelike leaflets , and no prickles on its petioles .
A specimen of L. hopei is known as the tallest living cycad at 17.5 m tall. These cycads are generally unbranched, tall, and with persistent leaf bases. They are easily cultivated as ornamental plants and are relatively cold hardy; L. peroffskyana was first described by a specimen grown at Saint Petersburg Botanical Garden in 1857.