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Cycads resemble fingers, yet are taxonomically particularly assorted. they're a major and irreplaceable section of the planet's organic variety, having developed a number of and sometimes precise morphological, anatomical and biochemical gains in the course of their 250-million-year evolutionary heritage. Many cycad species exist this present day merely as small, poorly-known or remoted populations or as decorative species in botanic gardens. so one can comprehend absolutely, in addition to to preserve, this across the world endangered tropical plant crew, it truly is paramount that cycad systematics are studied, documented and subtle. This quantity offers the present kingdom of our wisdom of the systematics of the nearly three hundred species of cycads. It comprises contributions from best researchers from Australia, China, Italy, Mexico, South Africa, Thailand and the us. it's been constructed from papers awarded at a workshop held in 2002, on the Montgomery Botanical Center.

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