| 释义 |
Gnetales
Thesaurus| Noun | 1. | Gnetales - chiefly tropical or xerophytic woody plants; practically unknown as fossils but considered close to the ancestral line of angiospermsorder Gnetalesplant order - the order of plantsclass Gnetopsida, Gnetophyta, Gnetophytina, Gnetopsida, subdivision Gnetophytina - gymnospermous flowering plants; supposed link between conifers and angiosperms; in some systems classified as a class (Gnetopsida) and in others as a subdivision (Gnetophytina or Gnetophyta)family Gnetaceae, Gnetaceae - plants having small unisexual flowers and fleshy or winged fruit: in some classifications includes the genera Ephedra and Welwitschia as well as genus GnetumEphedraceae, family Ephedraceae - ephedras: in some classifications included in the Gnetaceaefamily Welwitschiaceae, Welwitschiaceae - in some classifications included in the Gnetaceae |
Gnetales
Gnetales[nə′tā·lēz] (botany) A monogeneric order of the subdivision Gneticae; most species are lianas with opposite, oval, entire-margined leaves. Gnetales
Gnetales an order of GYMNOSPERMS whose members have true vessels in the secondary wood and an absence of archegonia in the ovule. In these features they resemble ANGIOSPERMS.Gnetales
Related to Gnetales: gnetum, GinkgoalesSynonyms for Gnetalesnoun chiefly tropical or xerophytic woody plantsSynonymsRelated Words- plant order
- class Gnetopsida
- Gnetophyta
- Gnetophytina
- Gnetopsida
- subdivision Gnetophytina
- family Gnetaceae
- Gnetaceae
- Ephedraceae
- family Ephedraceae
- family Welwitschiaceae
- Welwitschiaceae
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