Question:
Which one of the following statements about Cycas is incorrect?
Which one of the following statements about Cycas is incorrect?
Updated On: Aug 6, 2024
- it has circinate vernation
- its xylem is mainly composed of xylem vessel
- its roots contain some blue-green algae
- it does not have a well organized female flower.
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The Correct Option is B
Solution and Explanation
Cycas belongs to order cycadales of gymnosperms. Its leaves show circinate vernation i.e. the leaves are coiled in young stage. The coralloid roots in Cycas arise from the lateral branches of the normal roots and contain blue-green algae like Nostoc and Anabaena. A well developed flower like that of angiosperms is absent in Cycas. It has compact cones containing microsporophylls and megasporophylls. The megaspores are loosely arranged on the megasporophyll. The male cone is a compac structure. Vessels in xylem are absent and it contains only tracheids for conduction of water.
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Concepts Used:
Plant Kingdom
The Plant Kingdom comprises all the plants that have some shared characteristics. These are bacteria (prokaryotes), photosynthetic plants, fungi, and several non-photosynthetic plants.
Read Also: Two Kingdom Classification
Several features of Kingdom Plantae are as follows:
- They are stationary. They are static and usually remain in one place only.
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- They secure their food in the form of starch-like algae.
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- The non-photosynthetic plants acquire their food through parasitism, i.e through their host like Indian pipe.
Read More: Classification of Plants