Though they are often among the larger plants in their environment, cycads are no longer abundant or dominant components of the world flora. |
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The cycads are well known as garden plants and the group includes the sago palm. |
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Large plants were dominantly conifers, followed by lesser amounts of cycads, seed ferns, and ginkgos. |
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The microsprophylls of cycads are arranged in strobili and bear clusters of microsporangia on their abaxial surface. |
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Plants with strong forms predominate, notably agaves and cycads, which complement the existing bird of paradise and queen palm. |
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The breadfruit trees, cycads and tall hardwoods of that forest hide hornbills, sea eagles and monkeys. |
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Only cycads, among living spermatophytes, also share such primitive attributes. |
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The remaining morphospecies are organs of cycads, ginkgophytes, lycopods, sphenopsids, and bryophytes. |
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Concretions of chalcedony after barite can be confused with cycads, and the wise collector must learn to differentiate between the two. |
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Unlike species such as cycads, which are strictly controlled, the pelargoniums are not endangered and not protected under any regulations. |
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Both groups had woody stems that were heavily armored with persistent leaf bases, much like modern cycads. |
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Today caterpillars and weevils feed on roots, stems, leaves, reproductive cones, and seeds of cycads. |
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Gymnosperms, including conifers, gingkoes, and cycads, were very numerous, as were ferns and horsetails. |
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Between the judges' chambers are smooth, square ponds surrounded by indigenous coral trees and cycads. |
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The unusual surface textures of fossil cycads have been interesting curiosities to collectors for a long time. |
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Ginkgo trees, like some conifers and cycads, are dioecious, producing pollen and seeds on separate trees. |
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The early Mesozoic was dominated by ferns, cycads, ginkgophytes, bennettitaleans, and other unusual plants. |
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Both cycads and ginkgoes are dioecious, which means male and female reproductive structures are located on different plants. |
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The garden has been established for many years, and contains large specimens of both palms and cycads. |
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On land, the vegetation generally consisted of conifers, cycads, ginkgos, ferns and horsetails. |
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Instead of ponderosa pines, the dominant plants were cycads, which resemble tree ferns. |
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These plants looked similar to modern cycads but contained cones in their trunks instead of on top of the plant. |
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Modern cycads are tropical plants whose ancestors can be traced in the fossil record for about 300 million years. |
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By the end of the Paleozoic, cycads, glossopterids, primitive conifers, and ferns were spreading across the landscape. |
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He suggests that the link between plants and man lies hidden in primeval ecosystems inhabited by cycads, rhizomes and coral. |
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Investigators have suggested that these fossils represent new growth from cycads, deciduous trees, ginkgos and, most commonly, conifer trees. |
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The idea that cycads stem from Carboniferous so-called pteridosperms has long been popular with paleobotanists. |
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Some authors have suggested a close relationship between cycads and Lyginopteris, but most favor an affinity to Medullosan seed plants. |
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A kind of damper is made from the seeds or nuts from the female plants of cycads and zamia palms. |
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In their time, Brent and Barbara have experimented with a wide range of plants, but their obsession is for cycads, a winning trend in gardening today. |
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The demise of the highly successful cycadeoids at the end of the Cretaceous, while the modern cycads persisted, is another paleontological enigma. |
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As a native Californian, she was particularly drawn to plants that define Southern California gardening, such as agaves, bush anemones, cycads, and New Zealand flax. |
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Many cycads may be grown outdoors in California and the southern United States, but they cannot seem to tolerate the less equable climate in other parts of the nation. |
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It is planted with many varieties of Cape fynbos, cycads, huge strelitzias, beds of clivias, large arum lilies, proteas and trees such as yellowwood and cabbage. |
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A few species of cycads still exist in tropical and sub-tropical regions today, and although they are used as ornamental plants some of them are facing possible extinction. |
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Between 150 and 100 million years ago, the cycads were joined by figs, sassafras, oaks, and willows, as well as such evergreen plants as sequoias and palms. |
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There is some agreement that both living and extinct cycads were derived from seed ferns, but paleobotanists still debate exactly if, when, and how this happened. |
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To make matters worse, the concretions can be associated with cycads. |
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At least one prolific deposit produces complete stalks with short shoots attached and also produces cones and seeds of associated conifers and cycads. |
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So this is a time period where gymnospermous plants predominated, including cycadioids which look like modern cycads, and various groups of extinct conifers and seed ferns. |
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Chandler thought the seeds most closely resembled those of true cycads. |
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The coastal palms and cycads in the area are quite beautiful. |
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Liverworts, hornworts, mosses, clubmosses, resurrection plants, quillworts, horsetails, ferns, cycads, ginkgos, conifers, and flowering plants are all plants. |
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Any display which works to break health taboos must be good, and I found the plantation of dicksonias, cycads, equisetum and ferns exhilarating. |
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Ginkgo trees, conifers, bennettites, horsetails, ferns and cycads were plentiful during this period. |
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The recent radiation of cycads radically changes our view of these emblematic living fossils. |
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Flowering plants evolved from extinct plants related to conifers, ginkgos, cycads, and seed ferns. |
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In two other reports last year, Terry and Mound described thrips carrying pollen for palm-shape cycads. |
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Modules equipped with mesh greenhouses to protect crops from aphids, cycads, Tuta absolute, etc. |
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Trees, liverworts, hornworts, true mosses, ferns, cycads, and all flowering plants are agreed upon by all to be Plantae. |
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The cycads transport BMAA to tissues around their seeds, the researchers say. |
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Like the cycads many cycadeoids have trunklike stems that are unbranched or sparsely branched and clothed in spirally arranged persistent leaf bases. |
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I began to count the pools, each a flare of turquoise light lost behind the high walls of the villas with their screens of cycads and bougainvillaea. |
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The site protected one of the world's greatest concentrations of Cretaceous-period fossils, known informally as cycads or scientifically as Bennettitales. |
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Other plants, such as ginkgoes, cycads, and ferns were also common. |
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