Lepidozamia
Encyclopedia
Lepidozamia is a genus of two species of cycad
Cycad
Cycads are seed plants typically characterized by a stout and woody trunk with a crown of large, hard and stiff, evergreen leaves. They usually have pinnate leaves. The individual plants are either all male or all female . Cycads vary in size from having a trunk that is only a few centimeters...

, native to Australia
Australia
Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

. The name, derived from the Greek word lepidos, meaning scaly, refers to the scale-like structure of the stem and leaf bases. They are native to rainforest
Rainforest
Rainforests are forests characterized by high rainfall, with definitions based on a minimum normal annual rainfall of 1750-2000 mm...

 climates in eastern Queensland
Queensland
Queensland is a state of Australia, occupying the north-eastern section of the mainland continent. It is bordered by the Northern Territory, South Australia and New South Wales to the west, south-west and south respectively. To the east, Queensland is bordered by the Coral Sea and Pacific Ocean...

 and eastern New South Wales
New South Wales
New South Wales is a state of :Australia, located in the east of the country. It is bordered by Queensland, Victoria and South Australia to the north, south and west respectively. To the east, the state is bordered by the Tasman Sea, which forms part of the Pacific Ocean. New South Wales...

. They have a chromosome
Chromosome
A chromosome is an organized structure of DNA and protein found in cells. It is a single piece of coiled DNA containing many genes, regulatory elements and other nucleotide sequences. Chromosomes also contain DNA-bound proteins, which serve to package the DNA and control its functions.Chromosomes...

 number of 2n = 18.

Species
  • Lepidozamia hopei
    Lepidozamia hopei
    Lepidozamia hopei is a species of plant in the Zamiaceae family. It is endemic to Australia.-References:* Hill, K.D. 2003. . Downloaded on 22 August 2007....

  • Lepidozamia peroffskyana
    Lepidozamia peroffskyana
    Lepidozamia peroffskyana is a palm-like cycad in the Zamiaceae family. It is endemic to eastern Australia. The species is named after Count Peroffsky , benefactor of the St. Petersburg Botanical Garden.-Description:thumb|left|Leaf detail....



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 St. Petersburg's botanical garden in 1857.
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