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Which one controls dehiscence of sporang...

Which one controls dehiscence of sporangium in Dryopteris

A

Annulus

B

Tapetum

C

Sorus

D

Indusium

Text Solution

Verified by Experts

The correct Answer is:
A
In dry weather when spore mature, the indusium shrivels to expose the sporangia. Annulus dries up tends to straighten and in doing so stomium rupture to release spore.
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