Synonyms : Cycadales, Cycadopsida
| cycad |
any tropical gymnosperm of the order Cycadales; having unbranched stems with a crown of fernlike leaves
Ãâó: wordnet.princeton.edu/perl/webwn
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| cycad |
any of the palm-like, woody plants that constitute the order Cycadales. The order consists of four families: Cycadaceae, Zamiaceae, Stangeriaceae, and Boweniaceae. Some authorities use the term cycad to refer to all members of the division Cycadophyta. Plants of this division are known to have existed in the Mesozoic Era, about 245 to 66.4 million years ago. Only the order Cycadales contains living species.
Ãâó: www.msnucleus.org/membership/html/jh/earth/diction...
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| cycad |
a seed-bearing plant similar in appearance to modern palm trees. They first appeared in the Permian, and were common in the Mesozoic, but are rare today, having been displaced by flowering, fruit-bearing plants which appeared in the Cretaceous.
Ãâó: www.sedgwickmuseum.org/education/glossary.html
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| cycad |
(s ' kad) A group of trees from the order Cycadales. These are tropical trees and shrubs with thick stems, crowns of fernlike leaves, and fleshy seeds enclosed in large cones.
Ãâó: www.fort.usgs.gov/resources/education/bts/resource...
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| cycad | any tropical gymnosperm of the order Cycadales |
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| cycad | ancient palmlike plants closely related to ferns in that fertilization is by means of spermatozoids |
| cycad | ancient palmlike plants closely related to ferns in that fertilization is by means of spermatozoids |
| cycad | primitive tropical gymnosperms abundant in the Mesozoic, now reduced to a few scattered tropical forms |
| cycad | fossil gymnospermous trees or climbing plants from the Devonian: seed ferns |
| cycad | palmlike gymnosperms: includes the surviving order Cycadales and several extinct orders |
| cycad | palmlike gymnosperms: includes the surviving order Cycadales and several extinct orders |
| cycad | palmlike gymnosperms: includes the surviving order Cycadales and several extinct orders |
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