One of my students asked, "How many stoma are on a
leaf?" I said several, but it depends on the type of
plant. However, it piqued my curiosity for a number as well. Is
there a range? Lets say for something common like a white oak?
Also depends upon environmental factors, and usually recorded as # of
stomata per unit leaf area.
Anthony Brach Ph.D.
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Update: June 2012