A tissue with spiral thickening in the cell wall capable of absorbing water from air is known as

Cork

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Velamen

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Epiblema

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Hypodermis

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Solution

The correct option is A Velamen
The hygroscopic epidermis, present in the epiphytes are called velamen tissues. It is made up of spongy dead cells which help in the absorption of water from the atmosphere. It also checks excessive loss of water from the cortex. The wall of velamen has spiral or reticulate secondary thickening of lignin, cellulose and pectin.
So, the correct answer is option B.

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