OSTIOLES Crossword Clue
OSTIOLES Crossword Clue
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                    Crossword Puzzle Infos
                            
                                Ostioles are small openings or PORES found in the surface of some plants. They are typically located at the base of the leaf and are used to regulate gas exchange between the plant and the atmosphere. Ostioles are also known as stomata, and they are essential for photosynthesis.