翻訳と辞書 Words near each other ・ Ceratovacuna lanigera ・ Ceratoxancus ・ Ceratoxancus basileus ・ Ceratoxancus elongatus ・ Ceratoxancus leios ・ Ceratoxancus melichrous ・ Ceratoxancus niveus ・ Ceratoxancus teramachii ・ Ceratoxanthis ・ Ceratoxanthis adriatica ・ Ceratoxanthis argentomixtana ・ Ceratoxanthis externana ・ Ceratoxanthis iberica ・ Ceratoxanthis rakosyella ・ Ceratoxanthis saratovica ・ Ceratozamia ・ Ceratozamia alvarezii ・ Ceratozamia becerrae ・ Ceratozamia euryphyllidia ・ Ceratozamia fuscoviridis ・ Ceratozamia hildae ・ Ceratozamia kuesteriana ・ Ceratozamia latifolia ・ Ceratozamia matudae ・ Ceratozamia mexicana ・ Ceratozamia microstrobila ・ Ceratozamia miqueliana ・ Ceratozamia mixeorum ・ Ceratozamia morettii ・ Ceratozamia norstogii Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Ceratozamia ： ウィキペディア英語版 Ceratozamia ''Ceratozamia'' is a genus of New World cycads in the family Zamiaceae. The genus contains 27 known currently living species and one or two fossil species. Most species are endemic to mountainous areas of Mexico, while few species extend into the mountains of Guatemala, Honduras and Belize.〔(Kew World Checklist of Selected Plant Families )〕〔Hill, K.D. & Stevenson, D.W. (1999). A world list of Cycads, 1999. Excelsa 19: 67-72.〕 The genus name comes from the Greek ''ceras'', meaning horn, which refers to the paired, spreading horny projections on the male and female sporophylls of all species.〔Standley, P. C. & J. A. Steyermark. 1958. Cycadaceae. In Standley, P.C. & Steyermark, J.A. (Eds), Flora of Guatemala - Part I. Fieldiana, Botany 24(1): 11–20.〕〔Vovides, A. P., J. D. Rees & M. Vázquez-Torres. 1983. Zamiaceae. Flora de Veracruz 26: 1–31.〕 Many species have extremely limited ranges, and almost all described species are listed as vulnerable, endangered, or critically endangered by the IUCN Red List. The whole genus is listed under CITES Appendix I / EU Annex A, and CITES prohibits international trade in specimens of these species except when the purpose of the import is not commercial, for instance for scientific research. Illegal plant poaching has posed a major threat to ''Ceratozamia'' species.〔Christenhusz, M. J. M., J. L. Reveal, A. K. Farjon, M. F. Gardner, R. R. Mill & M. W. Chase. 2011. A new classification and linear sequence of extant gymnosperms. Phytotaxa 19: 55–70.〕 ==Description== The plants are dioecious, with a globose or cylindrical stem, rarely dichotomously branched, that may be underground or emergent. Several species produce basal shoots or suckers. The leaves are pinnately compound, straight, and spirally arranged. Leaf bases are usually deciduous but sometimes persistent. The petioles and rachis often have spines, though there may be very few to none. Leaflets are simple, entire, and articulate at the base, with parallel side veins and no distinct central vein. Male cones are cylindrical, upright, hairy, and stalked. Female cones are stalked or sessile, erect, and have short hairs. Seeds are oblong or elliptical, with a fleshy whitish outer coat. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Ceratozamia」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.