Question

what is pneumatophores

Answer 1

An aerial root may be defined as a root which, for part of the day at least, is exposed to the air. The mangrove mud is rather anaerobic (oxygen poor) and unstable and different plants have root adaptations to cope
Of breathing root (in mangroves and other swamp plants) an aerial root specialized for gaseous exchange.

Some lateral roots of mangroves become specialized as pneumatophores in saline mud flats; pneumatophores are lateral roots that grow upward (negative geotropism) for varying distances and function as the site of oxygen intake.They project some centimetres above the low-tide level. They have small openings (lenticels) in their bark so that air can reach the rest of the plants root system.
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Answer 2

☺HERE IS YOUR ANSWER ☺

✔ ✔ ✔PNEUMATOPHORES :-

These roots are negatively geotrophic. The root of such plants don't go downwards because the place are salty and they can't be able to function in such an environment. Such breathing root take oxygen and moisture from the atmosphere through pneumatophores

e.g:- Rhizophora (they grow in marshy, swampy and salty areas )

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