Lepidozamia

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Lepidozamia is a genus of two species of cycad, both endemic to Australia.[1] They are native to rainforest climates in eastern Queensland and eastern New South Wales. They have a diploid chromosome number of 2n = 18.

Etymology

The name is derived from the Greek word lepis (λεπίς) meaning scale,[2] which refers to the scale-like structure of the stem and leaf bases.

Species

Phylogeny of Lepidozamia[3][4]

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Image Scientific name Distribution Leaf Cone
File:Lepidozamia hopei 1.JPG Lepidozamia hopei (W.Hill) Regel northern Queensland File:Lepidozamia Hopei DSC 0233 - 400pix.jpg File:Lepidozamia hopei.jpg
File:Lepidozamia peroffskyana - Brooklyn Botanic Garden - Brooklyn, NY - DSC07987.JPG Lepidozamia peroffskyana Regel southeastern Queensland, northeastern New South Wales File:BCBG Burrawang Leaf Detail.jpeg File:Lepidozamia peroffskyana cone.jpg

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.

File:Lepidozamia hopei 1.JPG
L. hopei in understorey of the Daintree Rainforest, north-east Queensland
File:Lepidozamia hopei 2.JPG
L. hopei: female plant with disintegrating cone containing seeds
File:Lepidozamia hopei 3.JPG
L. hopei: tall plant in the Daintree Rainforest, north-east Queensland

References

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  1. Kew World Checklist of Selected Plant Families
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