Which of the following is absent in mature
Equisetum plant body?
(1) Strobilus (2) Rhizome
(3) Macrophylls (4) Internode
Answers
Answer:
Strobilus is the correct answer.
In the mature Equisetum plant body absent is (1) Strobilus
Explanation:
1.The plant body of Equisetum has an aerial part and an underground rhizome part. The rhizome is perennial, horizontal, branched and creeping in nature.
2.The aerial part is herbaceous and usually annual. Majority of the species are small with a size range in between 15 and 60 cm in height and 2.0 cm in diameter.
3.Equisetum stems showing Nodes and Internodes. Leaves are fused and form a sheath around the stem at each node.Horsetails (Equisetum) bear only a single vein, and appear to be microphyllous.
4.however, the fossil record suggests that their forebears had leaves with complex venation, and their current state is a result of secondary simplification.