diffrence between stomata and hydathodes.

Dear Student,
Hydathodes are special  pore-like structures at the margins and tip of leaves of some grasses and angiosperms which secrete excess water in the form of liquid drops apart from transpiration.

The water also contains salts, sugars, and organic compounds dissolved in it and sometimes seen to crystallize on evaporation.

Stomata are tiny pores present on the epidermis of the leaves. They are surrounded by guard cells that regulate the opening and closing of the stomata. Stomata basically have two major functions:
1. Helps in photosynthesis by facilitating gaseous exchange. The absorb carbon dioxide and release oxygen.
2. Stomata also helps in transpiration.


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Stomata: They are specialized pores present on the surface aerial plant parts especially on the lower epidermis of leaf, which facilitate Gaseous exchange and?Transpiration. The stomatal pores are guarded by a pair of specialized epidermal cells called the Guard Cells. The guard cells can regulate the opening and closing of the stomatal pore and thereby regulate the gaseous exchange through the stomata.

Hydathode (Water Stomata): Hydathode is a secretory tissue commonly found in the leaves of Angiosperms. They are pore-like structures present on the leaf margin through which water is secreted out as droplets. This type of secretion is called?Guttation.
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