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Gymnosperms are also called soft wood spermatophytes because they lack
Option: 1
Xylem fibres
Option: 2
Xylem vessels
Option: 3
Phloem fibres
Option: 4
Phloem sieve cells
Answers (1)
Gymnosperms -
- Gymnosperms are embryo forming, vascular tissue containing plants.
- These are usually evergreen trees, rarely shrubs and very rarely perennial herbs. Sequoia is one of the tallest trees.
- Ginkgo is a living fossil.
- The dominant stage in the life cycle is the sporophyte and divided into root, stem and leaf.
- Anatomically the stem has Eustele with conjoint, collateral and open vascular bundles.
- Xylem usually lacks vessels and companion cells are absent in phloem.
- Stem and root show secondary growth.
-
Xylem fibres are absent in gymnosperms.
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