Useful english dictionary. 2012.
Cycadales — n. an order of primitive tropical gymnosperms abundant in the Mesozoic, now reduced to a few scattered tropical forms. Syn: order {Cycadales}. [WordNet 1.5] … The Collaborative International Dictionary of English
Cycadales — noun primitive tropical gymnosperms abundant in the Mesozoic, now reduced to a few scattered tropical forms • Syn: ↑order Cycadales • Hypernyms: ↑plant order • Member Holonyms: ↑Cycadopsida, ↑class Cycadopsida, ↑Cycadophytina, ↑ … Useful english dictionary
Cycadales — Gymnosperm plant order containing all extant and extinct cycads; defined by the absence of axillary buds and the presence of cycasin, girdling leaf traces, simple megasporophylls, and primary thickening meristem which gives rise to the… … Expanded glossary of Cycad terms
plant order — noun the order of plants • Hypernyms: ↑order • Hyponyms: ↑Anthocerotales, ↑order Anthocerotales, ↑Andreaeales, ↑order Andreaeales, ↑Bryales, ↑order Bryales, ↑ … Useful english dictionary
cycad — cycadlike, adj. /suy kad/, n. any gymnospermous plant of the order Cycadales, intermediate in appearance between ferns and the palms, many species having a thick, unbranched, columnar trunk bearing a crown of large, leathery, pinnate leaves.… … Universalium
Cycadophyta — noun palmlike gymnosperms: includes the surviving order Cycadales and several extinct orders; possibly not a natural group; in some systems considered a class (Cycadopsida) and in others a subdivision (Cycadophytina or Cycadophyta) • Syn:… … Useful english dictionary
Cycad — Cycadophyta Temporal range: Early Permian–Recent … Wikipedia
cycadophyte — ▪ plant Introduction any member of a diverse collection of mostly extinct primitive gymnospermous plants. They probably had their origins among the progymnosperms of the Devonian Period (416 to 359 million years ago), possibly among a… … Universalium
class Cycadopsida — noun palmlike gymnosperms: includes the surviving order Cycadales and several extinct orders; possibly not a natural group; in some systems considered a class (Cycadopsida) and in others a subdivision (Cycadophytina or Cycadophyta) • Syn:… … Useful english dictionary
Cycadophytina — noun palmlike gymnosperms: includes the surviving order Cycadales and several extinct orders; possibly not a natural group; in some systems considered a class (Cycadopsida) and in others a subdivision (Cycadophytina or Cycadophyta) • Syn:… … Useful english dictionary
